9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 ENERGY STAR Program Requirements for Computers FINAL DRAFT Table of Contents Partner Commitments Commitments Performance for Special Distinction Eligibility Criteria Section 1: Definitions Section 2: Qualifying Products Section 3: Energy Efficiency and Power Management Criteria Tier 1 Requirements Tier 2 Requirements Section 4: Test Procedures Section 5: Effective Date Section 6: Future Specification Revisions Appendix A: ENERGY STAR Draft Test Procedure for Determining the Power Use of Computers in Standby, Sleep, Idle and Maximum Power 2 2 3 5 5 9 9 15 16 18 18 19 ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- LNLRGY siar PARVNLR ENERGY STARฎ Program Requirements for Computers 50 Partner Commitments 51 FINAL DRAFT 52 .53 54 55 Commitments 56 The following are the terms of the ENERGY STAR Partnership Agreement as it pertains to the 57 manufacturing of ENERGY STAR qualified computers. The ENERGY STAR Partner must adhere to the 58 following program requirements: 59 60 comply with current ENERGY STAR Eligibility Criteria, defining the performance criteria that must be 61 met for use of the ENERGY STAR certification mark on computers and specifying the testing criteria 62 for computers. EPA may, at its discretion, conduct tests on products that are referred to as ENERGY 63 STAR qualified. These products may be obtained on the open market, or voluntarily supplied by 64 Partner at EPA's request; 65 66 comply with current ENERGY STAR Identity Guidelines, describing how the ENERGY STAR marks 67 and name may be used. Partner is responsible for adhering to these guidelines and for ensuring that 68 its authorized representatives, such as advertising agencies, dealers, and distributors, are also in 69 compliance; 70 71 qualify at least one ENERGY STAR computer model within one year of activating the computers 72 portion of the agreement. When Partner qualifies the product, it must meet the specification (e.g., Tier 73 1 or 2) in effect at that time; 74 75 provide clear and consistent labeling of ENERGY STAR qualified computers. The ENERGY STAR 76 mark must be clearly displayed: 77 1. On the top or front of the product. Labeling on the top or front of the product may be permanent or 78 temporary. All temporary labeling must be affixed to the top or front of the product with an 79 adhesive or cling-type application; 80 Electronic Labeling Option: Manufacturers have the option of using an alternative electronic 81 labeling approach in place of this product labeling requirement, as long it meets the following 82 requirements: 83 84 - The ENERGY STAR mark in cyan, black, or white (as described in "The ENERGY STAR 85 Identity Guidelines" available at www.energystar.gov/logos') appears at system start-up. The 86 electronic mark must display for a minimum of 5 seconds; 87 - The ENERGY STAR mark must be at least 10% of the screen by area, may not be smaller 88 than 76 pixels x 78 pixels, and must be legible. 89 90 EPA will consider alternative proposals regarding approach, duration, or size for electronic 91 labeling on a case-by-case basis. 92 93 Note: The electronic labeling language has been changed to more clearly specify the requirements, and additional language has been added indicating that EPA will review all other proposals, including those modifying the required duration or size, on a case-by-case basis. The minimum duration for displaying the mark has also been reduced to 5 seconds. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- 94 2. In product literature (i.e., user manuals, spec sheets, etc.); 95 3. On product packaging for products sold at retail; and 96 4. On the manufacturer's Internet site where information about ENERGY STAR qualified models is 97 displayed: 98 - If information concerning ENERGY STAR is provided on the Partner Web site, as specified by 99 the ENERGY STAR Web Linking Policy (this document can be found in the Partner 100 Resources section on the ENERGY STAR Web site at www.enerqvstar.gov). EPA may 101 provide links where appropriate to the Partner Web site; 102 103 provide to EPA, on an annual basis, an updated list of ENERGY STAR qualified computer models. 104 Once the Partner submits its first list of ENERGY STAR qualified computer models, the Partner will be 105 listed as an ENERGY STAR Partner. Partner must provide annual updates in order to remain on the 106 list of participating product manufacturers; 107 108 provide to EPA, on an annual basis, unit shipment data or other market indicators to assist in 109 determining the market penetration of ENERGY STAR. Specifically, Partner must submit the total 110 number of ENERGY STAR qualified computers shipped (in units by model) or an equivalent 111 measurement as agreed to in advance by EPA and Partner. Partner is also encouraged to provide 112 ENERGY STAR qualified unit shipment data segmented by meaningful product characteristics (e.g., 113 capacity, size, speed, or other as relevant), total unit shipments for each model in its product line, and 114 percent of total unit shipments that qualify as ENERGY STAR. The data for each calendar year 115 should be submitted to EPA, preferably in electronic format, no later than the following March and may 116 be provided directly from the Partner or through a third party. The data will be used by EPA only for 117 program evaluation purposes and will be closely controlled. Any information used will be masked by 118 EPA so as to protect the confidentiality of the Partner; 119 120 notify EPA of a change in the designated responsible party or contacts for computers within 30 days. 121 122 123 Performance for Special Distinction 124 In order to receive additional recognition and/or support from EPA for its efforts within the 125 Partnership, the ENERGY STAR Partner may consider the following voluntary measures and should keep 126 EPA informed on the progress of these efforts: 127 128 consider energy efficiency improvements in company facilities and pursue the ENERGY STAR mark 129 for buildings; 130 131 purchase ENERGY STAR qualified products. Revise the company purchasing or procurement 132 specifications to include ENERGY STAR. Provide procurement officials' contact information to EPA 133 for periodic updates and coordination. Circulate general ENERGY STAR qualified product information 134 to employees for use when purchasing products for their homes; 135 136 ensure the power management feature is enabled on all ENERGY STAR qualified monitors and 137 computers in use in company facilities, particularly upon installation and after service is performed; 138 139 provide general information about the ENERGY STAR program to employees whose jobs are relevant 140 to the development, marketing, sales, and service of current ENERGY STAR qualified product 141 models; 142 143 provide a simple plan to EPA outlining specific measures Partner plans to undertake beyond the 144 program requirements listed above. By doing so, EPA may be able to coordinate, communicate, 145 and/or promote Partner's activities, provide an EPA representative, or include news about the event in 146 the ENERGY STAR newsletter, on the ENERGY STAR Web pages, etc. The plan may be as simple ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 3 ------- 147 as providing a list of planned activities or planned milestones that Partner would like EPA to be aware 148 of. For example, activities may include: (1) increase the availability of ENERGY STAR qualified 149 products by converting the entire product line within two years to meet ENERGY STAR guidelines; (2) 150 demonstrate the economic and environmental benefits of energy efficiency through special in-store 151 displays twice a year; (3) provide information to users (via the Web site and user's manual) about 152 energy-saving features and operating characteristics of ENERGY STAR qualified products: and (4) 153 build awareness of the ENERGY STAR Partnership and brand identity by collaborating with EPA on 154 one print advertorial and one live press event; 155 156 provide quarterly, written updates to EPA as to the efforts undertaken by Partner to increase 157 availability of ENERGY STAR qualified products, and to promote awareness of ENERGY STAR and 158 its message. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- ENERGY STAR Program Requirements for Computers Eligibility Criteria FINAL DRAFT L6A. 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 Below is the Final Draft Version 4.0 product specification for ENERGY STAR qualified computers. A product must meet all of the identified criteria to earn the ENERGY STAR. 1) Definitions: Below are the definitions of the relevant terms in this document. A. Computer: A device which performs logical operations and processes data. Computers are composed of, at a minimum: (1) a central processing unit (CPU) to perform operations; (2) user input devices such as a keyboard, mouse, digitizer or game controller; and (3) a display screen to output information. For the purposes of this specification, computers include both stationary and portable units, including desktop computers, gaming consoles, integrated computers, notebook computers, tablet PCs, desktop-derived servers and workstations. Although computers must be capable of using input devices and displays, as noted in numbers 2 and 3 above, computer systems do not need to include these devices on shipment to meet this definition. Note: Based on stakeholder feedback, the computer definition has been amended to indicate that computers do not necessarily ship with input devices (keyboards and mice) or external displays (monitors). Components B. Display: A commercially-available, electronic product with a display screen and its associated electronics encased in a single housing, or within the computer housing (e.g., notebook or integrated computer), that is capable of displaying output information from a computer via one or more inputs, such as a VGA, DVI, and/or IEEE 1394. Examples of display technologies are the cathode-ray tube (CRT) and liquid crystal display (LCD). C. External Power Supply: A component contained in a separate physical enclosure external to the computer casing and designed to convert line voltage ac input from the mains to lower dc voltage(s) for the purpose of powering the computer. An external power supply must connect to the computer via a removable or hard-wired male/female electrical connection, cable, cord or other wiring. Note: Based on stakeholder feedback, the limit of 250 W for external power supplies has been removed to allow computer systems using larger external power supplies to qualify under this specification. D. Internal Power Supply: A component internal to the computer casing and designed to convert ac voltage from the mains to dc voltage(s) for the purpose of powering the computer components. For the purposes of this specification, an internal power supply must be contained within the computer casing but be separate from the main computer board. The power supply must connect to the mains through a single cable with no intermediate circuitry between the power supply and the mains power. In addition, all power connections from the power supply to the computer components must be internal to the computer casing (i.e., no external cables running from the power supply to the computer or individual components). Internal dc to dc converters used to ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- 206 convert a single dc voltage from an external power supply into multiple voltages for use by the 207 computer are not considered internal power supplies. 208 Note: EPA received comments that the language indicating that "no additional circuitry" be present in the cable between the power supply and the mains be removed from the internal power supply definition. This change was suggested to allow computers with built in uninterruptible power systems (UPS) to meet this definition. However, the internal power supply test procedure referenced in Section 4 of this specification is not meant to cover UPS. Therefore, EPA believes the inclusion of this language is warranted until the energy efficiency characteristics of UPS are investigated further and a supporting test procedure is made available. EPA may consider including products that with integrated UPS when new information is made available. 209 210 211 Computer Types 212 213 E. Desktop Computer: A computer where the main unit is intended to be located in a permanent 214 location, often on a desk or on the floor. Desktops are not designed for portability and utilize an 215 external monitor, keyboard, and mouse. Desktops are designed for a broad range of home and 216 office applications including, email, web browsing, word processing, standard graphics 217 applications, gaming, etc. 218 219 F. Desktop-Derived Server: A desktop-derived server is a computer that typically uses desktop 220 components in a tower form factor, but is designed explicitly to be a host for other computers or 221 applications. For the purposes of this specification, a computer must be marketed as a server and 222 have the following characteristics to be considered a desktop-derived server: 223 224 Designed and placed on the market as a Class B product per EuroNorm EN55022:1998 under 225 the EMC Directive 89/336/EEC and has no more than single processor capability (1 socket on 226 board); 227 228 Designed in a pedestal, tower, or other form factor similar to those of desktop computers such 229 that all data processing, storage, and network interfacing is contained within one box/product; 230 231 Designed to operate in a high-reliability, high-availability application environment where the 232 computer must be operational 24 hours/day and 7 days/week, and unscheduled downtime is 233 extremely low (on the order of hours/year); 234 235 Capable of operating in a simultaneous multi-user environment serving several users through 236 networked client units; and 237 238 Shipped with an industry accepted operating system for standard server applications (e.g., 239 Windows NT, Windows 2003 Server, Mac OS X Server, OS/400, OS/390, Linux, Unix and 240 Solaris). 241 242 Desktop-derived servers are designed to perform functions such as processing information for 243 other systems, providing network infrastructure services (e.g., archiving), data hosting and running 244 web servers. 245 246 This specification does not cover mid-range or large servers, defined for purposes of this 247 specification as: 248 249 Designed and placed on the market as a Class A product per EuroNorm EN55022:1998 under 250 the EMC Directive 89/336/EEC and designed and capable of having a single or dual 251 processor capability (1 or greater sockets on board); and 252 ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 Placed on the market as a Class B product, but hardware upgraded from a Class A product, per EuroNorm EN55022:1998 under the EMC Directive 89/336/EEC and designed capable of having a single or dual processor capability (1 or greater sockets on board); Designed and placed on the market as a Class B product per EuroNorm EN55022:1998 under the EMC Directive 89/336/EEC and designed and capable of having a minimum dual processor capability (2 sockets on board). Note: Based on Stakeholder comments, a third bullet has been added under the definition for desktop- derived servers to clarify that Class B products upgraded from Class A products also fit the definition of mid-range to large servers, and are therefore, excluded from this specification. G. Game Consoles: Stand alone computers whose primary use is to play video games. For the purposes of this specification, game consoles must use a hardware architecture based on typical computer components (e.g., processors, system memory, video architecture, optical and/or hard drives, etc.). The primary input for game consoles are special hand held controllers rather than the mouse and keyboard used by more conventional computer types. Game consoles are also equipped with audio visual outputs for use with televisions as the primary display, rather than an external monitor or integrated display. These devices do not typically use a conventional operating system, but often perform a variety of multimedia functions such as: DVD/CD playback, digital picture viewing, and digital music playback. H. Integrated Computer: A desktop system in which the computer and display function as a single unit which receives its ac power through a single cable. Integrated computers come in one of two possible forms: (1) a system where the display and computer are physically combined into a single unit; or (2) a system packaged as a single system where the display is separate but is connected to the main chassis by a dc power cord and both the computer and display are powered from a single power supply. As a subset of desktop computers, integrated computers are typically designed to provide similar functionality as desktop systems. I. Notebook and Tablet Computers: A computer designed specifically for portability and to be operated for extended periods of time without a direct connection to an ac power source. Notebooks and tablets must utilize an integrated monitor and be capable of operation off an integrated battery or other portable power source. In addition, most notebooks and tablets use an external power supply and have an integrated keyboard and pointing device, though tablets use touch sensitive screens. Notebook and tablet computers are typically designed to provide similar functionality to desktops except within a portable device. For the purposes of this specification, docking stations are considered accessories and therefore, the performance levels associated with notebooks presented in Table 1 of section 3, below, do not include them. J. Workstation: For the purposes of this specification, to qualify as a workstation, a computer must: Be marketed as a workstation; Have a mean time between failures (MTBF) of at least 15,000 hours based on either Bellcore TR-NWT-000332, issue 6, 12/97 or field collected data; and Support error-correcting code (ECC) and/or buffered memory. In addition, a workstation must meet three of the following six optional characteristics: Have supplemental power support for high end graphics (i.e., PCI-E 6-pin 12V supplemental power feed); ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- 301 System is wired for greater than 4x PCI-E on motherboard in addition to graphics slot(s) 302 and/or PCI-X support; 303 Does not support Uniform Memory Access (UMA) graphics; 304 Includes 5 or more PCI, PCIe or PCI-X slots; 305 Capable of multi-processor support for two or more processors (must support physically 306 separate processor packages/sockets, i.e., not met with support for a single multi core 307 processor); and/or 308 Be qualified by at least 2 Independent Software Vendor (ISV) product certifications; these 309 certifications can be in process, but must be completed within 3 months of qualification. 310 311 Operational Modes 312 313 K. Idle State: For purposes of testing and qualifying computers under this specification, this is the 314 state in which the operating system and other software have completed loading, the machine is 315 not asleep, and activity is limited to those basic applications that the system starts by default. 316 317 L. Sleep Mode: A low power state that the computer is capable of entering automatically after a 318 period of inactivity or by manual selection. A computer with sleep capability can quickly "wake" in 319 response to network connections or user interface devices. For the purposes of this specification, 320 Sleep mode correlates to ACPI System Level S3 (suspend to RAM) state, where applicable. 321 322 M. Standby Level (Off Mode): The power consumption level in the lowest power mode which cannot 323 be switched off (influenced) by the user and that may persist for an indefinite time when the 324 appliance is connected to the main electricity supply and used in accordance with the 325 manufacturer's instructions. For purposes of this specification, Standby correlates to ACPI 326 System Level S4 or S5 states, where applicable. 327 328 Networking and Power Management 329 330 N. Network Interface: The components (hardware and software) whose primary function is to make 331 the computer capable of communicating over one or more network technologies. For purposes of 332 testing to this specification, Network Interface refers to the IEEE 802.3 wired Ethernet interface. 333 334 O. Wake Event: A user, programmed, or external event or stimulus that causes the computer to 335 transition from Sleep or Standby to active mode of operation. Examples of wake events include, 336 but are not limited to: movement of the mouse, keyboard activity, or a button press on the chassis, 337 and in the case of external events, stimulus conveyed via a remote control, network, modem, etc. 338 339 P. Wake On LAN (WOL): Functionality which allows a computer to wake from Sleep or Standby 340 when directed by a network request. 341 342 2) Qualifying Products: Computers must meet the computer definition as well as one of the 343 product type definitions provided in Section 1, above, to qualify as ENERGY STAR. Please note that 344 EPA will explore additional computer types, such as thin clients, for potential Tier 2 345 requirements. The following table provides a list of the types of computers that are (and are not) 346 eligible for ENERGY STAR. 347 Products Covered by Version 4.0 Specification Products Not Covered by Version 4.0 Specification Desktop Computers Game Consoles Integrated Computer Systems Mid-Range and Large Servers (as defined in Section 1F) Thin Clients/Blade PCs ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 8 ------- Notebook Computers/Tablet PCs Handhelds and PDAs Desktop-Derived Servers Workstations 348 349 3) Energy Efficiency and Power Management Criteria: Computers must meet the 350 requirements below to qualify as ENERGY STAR. Proposed effective dates for Tier 1 and Tier 2 are 351 covered in Section 5 of this specification. 352 353 A) Tier 1 Requirements - Effective July 20. 2007 354 355 (1) Power Supply Efficiency Requirements 356 357 Computers Using an Internal Power Supply: 80% minimum efficiency at 20%, 50%, and 100% of 358 rated output and Power Factor > 0.9 at 100% of rated output. 359 360 Computers Using an External Power Supply: Must be ENERGY STAR qualified or meet the no- 361 load and active mode efficiency levels provided in the ENERGY STAR Program Requirements for 362 Single Voltage Ac-Ac and Ac-Dc External Power Supplies. The ENERGY STAR specification and 363 qualified product list can be found at www.enerqvstar.gov/powersupplies. Note: This performance 364 requirement also applies to multiple voltage output external power supplies as tested in accordance to 365 the Internal Power Supply test method referenced in Section 4, below. 366 367 (2) Operational Mode Efficiency Requirements 368 369 Desktop Categories for Idle Criteria: 370 For the purposes of determining Idle state levels, desktops (including integrated computers, desktop- 371 derived servers and game consoles) must qualify under Categories A, B, or C as defined below: 372 373 Category A: All desktop computers that do not meet the definition of either Category B or 374 Category C below should be considered under Category A for ENERGY STAR qualification. 375 376 Category B: To qualify under Category B desktops must have: 377 Multi-core processor(s) or greater than 1 discrete processor; and 378 Minimum of 1 gigabyte of system memory. 379 380 Category C: To qualify under Category C desktops must have: 381 Multi-core processor(s) or greater than 1 discrete processor; and 382 A GPU with greaterthan 128 megabytes of dedicated, non-shared memory. 383 384 In addition to the requirements above, models qualifying under Category C must be configured 385 with a minimum of 2 of the following three characteristics: 386 Minimum of 2 gigabytes of system memory; 387 TV tuner and/or video capture capability with high definition support; and/or 388 Minimum of 2 hard disk drives. 389 ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- Note: After additional analysis of the desktop categories and proposed levels, based on manufacturer submitted data and subsequent in-depth discussions with industry stakeholders, EPA will maintain three desktop categories as defined above. EPA analyzed a more recent proposal from stakeholders which would allow a lower level of memory to qualify a desktop for Category B if the desktop had discrete graphics. EPA found that this approach would allow too many of the systems that qualify under Category A under the existing EPA proposal to instead qualify under Category B, resulting in an excessively high qualification rate for Category B and an unacceptably low qualification rate for Category A. To achieve more desirable qualification rates (approximately 25%) when using this recent stakeholder proposal, EPA would have to increase the levels for Category A and tighten the levels for Category B, decreasing the spread between the two categories and negating the justification for maintaining three desktop categories. In addition, some stakeholders felt an adder for discrete graphics was needed for Category B machines, while others expressed that providing an adder for this feature would necessitate decreasing the base allowance proposed for Category B. Thus, EPA intends to maintain the more generous Idle level for all products eligible for Category B rather than decreasing the base allowance and providing an 390 adder for graphics cards. 391 392 Notebook Categories for Idle Criteria: 393 For the purposes of determining Idle state levels, notebooks and tablets must qualify under Categories 394 A or B as defined below: 395 396 Category A: All notebook computers that do not meet the definition of Category B below will be 397 considered under Category A for ENERGY STAR qualification. 398 399 Category B: To qualify under Category B notebooks must have: 400 A GPU with a minimum of 128 megabytes of dedicated, non-shared memory. 401 402 Note: Based on analysis performed for the document Computer Specification Revision Progress Update: Proposed Levels for Final Specification, which was distributed to stakeholders on August 26, 2006, EPA proposed adding a category for notebooks that accommodates higher capability machines, especially those with discrete graphics solutions. After looking at many different suggestions provided by stakeholders, EPA determined the best differentiator between a Category A and Category B notebook would be one based on a discrete graphics solution with at least 128 MB of dedicated memory. EPA feels that this categorization for notebooks gives strong justification for two notebook categories and allows machines with higher capability to meet the Idle criteria. Based on more recent stakeholder comments, EPA also looked at a revised Category B definition that mirrored that which is being proposed for desktops. EPA found that this revised definition created a result similar to desktops, allowing too many Category A systems to move into Category B and raising the qualification rate for Category B machines significantly. In this case, EPA would then have to lower the proposed Category B level to be equal to the Category A level to achieve a more desirable qualification rate for both categories, thereby eliminating the need for two categories. Thus, EPA intends to maintain the definitions for Category A and Category B notebooks, above. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 10 ------- 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 Most recently, stakeholders proposed the addition of a Category C for notebooks based on advanced capability such as increased memory, higher-end graphics and TV tuner functionality. Without data to properly assess these proposals, EPA has decided to maintain a two category system so as not to delay the current specification revision process. Furthermore, EPA believes that these categories will allow a variety of notebook configurations and capability levels to qualify for ENERGY STAR. Additionally, EPA will watch the growth of advanced capabilities for these and all other products addressed by this specification and will take them into consideration under the Tier 2 specification. Workstation Levels: Workstation levels will be determined using a simplified Typical Electricity Consumption (TEC) approach to allow manufacturers energy trade offs between different operating modes, based on a given weighting factor for each mode. The final level will be based on the TEC power level (Ptec) which will be determined by the following formula: PtEC= 0.1 * Pstandby + 0.2 * Psieep + 0.7 * P|d|e where, Pstandby is the power measured in Standby, Psieep is the power measured in Sleep and in P|die is the power measured in Idle. This PTEc value will then be compared to the TEC budget which is determined by a fixed percentage of the maximum power of the system, including an adder for installed hard drives, as indicated in the equation in Table 1. The test procedure for determining the maximum power of Workstations can be found in Section 4 of Appendix A. Note: Based on stakeholder feedback and further analysis of manufacturer supplied data, it was determined that using a weighted TEC model for workstations was a fair and equitable way to account for the differences between the various architectures and methodologies used to approach energy efficiency. It was also determined that since the range of power profiles in the workstation market were so broad, a scalable classifier was needed to ensure a broad range of machines were represented by ENERGY STAR. The scalable classifier is the product of an extensive EPA-lndustry cooperative effort and has yielded a large of amount of useful information for approaching Tier 2. More information on the collaboration between EPA and industry in the development of these criteria can be found on the ENERGY STAR Web site at http://www.enerqvstar.gov/index.cfm?c=revisions.computer spec. Power Level Requirements: The following tables indicate the required power allowances for the Tier 1 specification. Table 1 gives the baseline requirements, while Table 2 gives additional power allowances for WOL. For those products that meet the WOL enabling requirement, a model must meet the energy level provided in Table 1 summed with the appropriate allowances from Table 2. Note: Products whose Sleep levels meet the Standby power requirements do not need to have a distinct Off mode, and may qualify for this specification using only Sleep mode. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 11 ------- 426 427 428 Table 1: Tier 1 Energy Efficiency Requirements Product Type Tier 1 Requirements Standby (Off Mode): < 2.0 W Sleep Mode: < 4.0 W Desktops, Integrated Computers, Desktop-Derived Servers and Gaming Consoles Idle State: Category A: < 50.0 W Category B: < 65.0 W Category C: < 95.0 W Note: Desktop-derived servers (as defined in section 1. F) are exempt from the Sleep level above. Standby (Off Mode): < 1.0 W Notebooks and Tablets Sleep Mode: < 1.7 W Idle State: Category A: < 14.0 W Category B: < 20.0 W TEC Power (Ptec): < 0.35 * [PMax + (# HDDs * 5)] W Workstations Note: Where Pmax is the maximum power drawn by the system as tested per the test procedure in Section 4 of Appendix A, and #HDD is the number of installed hard drives in the system. Table 2: Tier 1 Capability Adders for Sleep and Standby Wake On LAN (WOL) | 0.7 W for Sleep and/or Standby 429 Note: In response to stakeholders' comments on the Computer Specification Revision Progress Update: Proposed Levels for Final Specification, EPA has made the following changes to the proposed levels: Provided a WOL adder for the Sleep mode for both desktops and notebooks. Raised the Category B Idle level for notebooks to 20 watts to better allow for advanced functionality and higher end graphics. Additionally, in response to valuable stakeholder feedback on the analysis of manufacturer submitted data, EPA has revised its analysis for desktops as follows: Removed power supply adjustments to low power levels (Sleep and Standby) as the power supply requirements do not specify standby rail efficiencies, and therefore assumptions for standby rail efficiencies cannot be made accurately. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 12 ------- 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 Removed power supply efficiency adjustments for Idle values which are less than 20% of power supply loading, as efficiency drops off sharply below 20% load. To determine Idle loading percentage, EPA multiplied the Idle measurements by an assumed 73% conversion efficiency (estimated based on the efficiency at 15% load of power supply curves supplied by industry) to approximate power supply output at Idle and divided this result by the rated output of the power supply. Realized some duplicate configurations tested with and without compliant power supplies were left in the dataset for the previous analysis. Since non-compliant models have been adjusted to account for the substitution of efficient power supplies, EPA feels these models are now redundant and therefore removed the models without 80% power supplies because they are covered by the identical configurations with efficient power supplies. The final dataset included with this document reflects these recent changes. Based on the above described changes to the dataset, the levels proposed in Table 1 result in qualification rates of 22.7% for desktops and 26.9% for notebooks (24.4% for desktops and notebooks combined). Furthermore, stakeholders requested the following changes to the dataset and definitions. Stakeholders requested the memory DIMM adder be reinstated. However, the EPA dataset did not warrant this adder. Additionally, high qualification levels for all products in the low power modes suggest that the Sleep levels proposed here are more than adequate to allow products with high memory configurations to qualify for the program. Stakeholders felt that an insufficient number of units were tested with active network switches connected for Idle. EPA understands this has an effect on the data and considered adjusting the effected Idle values upward to accommodate for this discrepancy, but felt that there was insufficient information to accurately adjust these values. This analysis would require detailed information about the NIC cards used, as well as a database of the energy consumption of these products. EPA also feels that stakeholders were given ample notice about this test condition both in an email distributed to stakeholders on March 1, 2006 and in both the Draft 2 and Draft 3 specification draft test procedures. However, if ample data can be assembled within 1.5 weeks of the release of this Final Draft specification, EPA remains open to adjusting power allowances accordingly. Stakeholders expressed an interest in maintaining desktop-derived servers as a separate category with special considerations. EPA recognizes these products may have usage patterns and functionality that is different from desktops; however, without any data to support such an accommodation, EPA is forced to continue to have these products meet desktop definitions and levels. If ample data can be assembled within 1.5 weeks of the release of this Final Draft specification, EPA remains ODen to revisina the current aDDroach for these Droducts. Qualifying Computers With or Without WOL Enabled: The following requirements should be followed when determining whether models should be qualified with or without WOL: Standby: Computers should be tested and reported as shipped for Standby. Models that will be shipped with WOL enabled should be tested with WOL enabled and will qualify using the extra allowance for Standby found in Table 2 above. Sleep: Computers should be tested and reported as shipped for Sleep. Models sold through enterprise channels, as defined in the Tier 1 Power Management Requirements (Section 3.A.3), shall be tested, qualified, and shipped WOL enabled. Products going directly to consumers through normal retail channels may be tested, qualified, and shipped with WOL disabled. Those models sold both through enterprise channels and directly to consumers must test and meet both the levels with and without WOL. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 13 ------- 446 447 (3) Power Management Requirements 448 449 Shipment Requirement: 450 Products must be shipped with the display's Sleep mode set to activate within 15 minutes of user 451 inactivity. Products must be shipped with the computer's Sleep mode set to activate within 30 minutes 452 of user inactivity. Products may have more than one low power mode but these proposed criteria 453 address Sleep mode as defined in this specification. Computers shall reduce the speed of any active 454 Ethernet network links to the lowest speed supported by both ends of the link when transitioning to 455 Sleep or Standby. 456 457 All computers, regardless of distribution channel, shall have the ability to enable and disable WOL for 458 Sleep mode. Systems shipped through enterprise channels must have Wake On LAN (WOL) enabled 459 from the Sleep mode when operating on ac power (i.e. notebooks may automatically disable WOL 460 when operating on their portable power sources). For the purpose of this specification, "enterprise 461 channels" are defined as sales channels normally used by large and medium-sized business, 462 government organizations, and educational institutions, with the intent of identifying machines that will 463 be used in managed client/ server environments. For all computers with WOL enabled any directed 464 packet filters shall be enabled and set to an industry standard default configuration. Systems can be 465 exempted from the WOL requirement if their sleep mode maintains full network connectivity, such as 466 the same network state as when the system is in Idle. 467 Note: Text was included to clarify that notebooks only need to have WOL enabled when connected to ac power, thereby leaving the opportunity to disable this functionality when operating on portable power sources. Stakeholders indicated that this change was needed to avoid WOL having a negative impact on battery life. Language was also included to clarify that systems with full network connectivity from Sleep are exempt from the WOL requirements. 468 469 470 All machines shipped to enterprise customers shall be capable of both remote and scheduled wake 471 events from Sleep mode. Manufacturers shall ensure, where the manufacturer has control (i.e., 472 configured through hardware settings rather than software settings), that these settings can be 473 managed centrally, as the client wishes, with tools provided by the manufacturer. 474 475 User Education Requirement: 476 In order to ensure that purchasers/users are properly educated on the benefits of power management, 477 the manufacturer will include with each computer, one of the following: 478 479 Information on ENERGY STAR and the benefits of power management in either a hard copy or 480 electronic copy of the user manual. This information should be near the front of the user guide; or 481 A package or box insert on ENERGY STAR and the benefits of power management. 482 483 Either option must include the following information: 484 485 Notice that the computer has been shipped enabled for power management and what the time 486 settings are; 487 How to properly wake the computer from Sleep mode; 488 Energy saving benefits; 489 Money saving benefits; 490 Environmental benefits 491 Some information on ENERGY STAR and a link to www.enerqvstar.gov; and 492 ENERGY STAR logo (used in accordance with "The ENERGY STAR Identity Guidelines" 493 available at www.enerqvstar.gov/loqos). ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 14 ------- 494 In addition, the manufacturer will have similar information with a link to 495 www.enerqvstar.gov/powermanaqement on the company Web site, readily accessible from computer 496 product pages, product specifications, and related content pages. 497 498 At the manufacturer's request, EPA will supply suggested facts and figures related to the above 499 criteria, template elements, or a complete template suitable for use in user guides or box inserts. 500 501 EPA's goal is to achieve a 40% enabling rate nationally by 2010; 60% by 2012; and > 80% by 2014. 502 EPA recognizes the importance of documenting enabling rates and encourages industry to develop a 503 collective strategy for securing and funding this research, and sharing findings with EPA and the 504 public. 505 506 507 (B) Tier 2 Requirements - Effective January 1. 2009 508 509 (1a) Tier 2 Energy Efficiency Metric: All computers will be required to meet the following minimum 510 performance per unit energy metric. 511 512 Performance Benchmarking Software and Associated Levels: TBD 513 Note: For more information on EPA's progress on the Tier 2 Energy Efficiency Metric, please see the ENERGY STAR Tier 2 Update Document released to stakeholders on September 12, 2006 and posted on ^ 14 the computer specification development Web site. 515 516 -OR- 517 518 (1b) Provisional Tier 2 Idle State Requirements: If an energy efficiency performance metric and 519 associated performance levels, are not ready to go into effect by January 1, 2009, a provisional Tier 2 520 specification will automatically go into effect and will remain in effect until such a benchmark is 521 established. This provisional Tier 2 will include revised Idle state levels for all computer types (those 522 included in Tier 1 as well as others as appropriate [e.g., thin clients]) with the intention of capturing the 523 top 25% performers in energy efficiency. 524 525 Additional topics, including the following, will also be re-examined under a provisional Tier 2: 526 527 Idle levels for notebooks and integrated computers that incorporate the energy use of the displays; 528 529 Quantitative distinctions between desktop categories (e.g., megabytes of video memory, number 530 of processor cores, megabytes of system memory) to make sure these distinctions remain current; 531 532 Sleep levels for desktop-derived servers; and 533 534 Allowances for Out-Of-Band (OOB) client management tools, such as service processors in Sleep 535 and Standby, which may aid in the adoption of computer power management. 536 537 In the case of the implementation of a provisional Tier 2, EPA will re-examine these new topics and 538 finalize new levels at least six months prior to the effective date for Tier 2. 539 540 (2) Power Management Requirements: In addition to the requirements provided under Tier 1, 541 above, ENERGY STAR qualified computers must retain full network connectivity while in Sleep mode, 542 according to a platform-independent industry standard. All computers shall reduce their network link 543 speeds during times of low data traffic levels in accordance with any industry standards that provide 544 for quick transitions among link rates. 545 546 C) Voluntary Requirements ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 15 ------- 547 548 User Interface: Although not mandatory, manufacturers are strongly recommended to design 549 products in accordance with the Power Control User Interface Standard IEEE 1621 (formally known 550 as "Standard for User Interface Elements in Power Control of Electronic Devices Employed in 551 Office/Consumer Environments"). Compliance with IEEE 1621 will make power controls more 552 consistent and intuitive across all electronic devices. For more information on the standard see 553 http://eetd.LBL.gov/Controls. 554 555 556 4) Test Procedures: Manufacturers are required to perform tests and self-certify those models that 557 meet the ENERGY STAR guidelines. 558 559 In performing these tests, partner agrees to use the test procedures provided in Table 3, below. 560 561 The test results must be reported to EPA using the Online Product Submittal (OPS) Tool. 562 563 Additional testing and reporting requirements are provided below. 564 565 A. Number of Units Required for Idle Testing: Manufacturers may initially test a single unit for 566 qualification. If the initial unit tested meets the maximum power level for Idle but falls within 10% 567 of that level, one additional unit of the same model and configuration must also be tested. 568 Manufacturers shall report Idle values for both units. To qualify as ENERGY STAR, both units 569 must meet the maximum Idle level for that product category. Note: This additional testing is only 570 required for Idle qualification - only one unit is required to be tested for Sleep and Standby. 571 572 The following example further illustrates this approach: 573 Category A desktops must meet an Idle level of 50 watts or less, making 45 Watts the 10% 574 threshold for additional testing. The following scenarios could then occur when testing a 575 model for qualification: 576 If the first unit is measured at 44 watts, no more testing is needed and the model qualifies (44 577 watts is 12% more efficient than the specification and is therefore "outside" the 10% 578 threshold). 579 If the first unit is measured at 45 watts, no more testing is needed and the model qualifies (45 580 watts is exactly 10% more efficient than the specification). 581 If the first unit is measured at 47 watts, then an additional unit must be tested to determine 582 qualification (47 Watts is only 6% more efficient than the specification and is "within" the 10% 583 threshold). 584 If the two units are then tested at 47 and 51 watts, the model does not gualifv as ENERGY 585 STAReven though the average is 49 watts because one of the values (51) exceeds the 586 ENERGY STAR specification. 587 If the two units are then tested at 47 and 49 watts, the model does gualifv as ENERGY STAR 588 because both values meet the ENERGY STAR specification of 50 watts. 589 590 591 592 Note: EPA has added Section A above specifically for Idle mode testing explaining that for products that fall within a certain percentage (10%) of the Idle state levels provided in Table 1 an additional unit must be tested to verify compliance. This change was made based on stakeholder comments about the wide range of variability in Idle state power due to the extreme variability in individual components. This additional testing requirement ensures that subsequent models sold in the marketplace will comply with ENERGY STAR Idle requirements and helps to protect the ENERGY STAR brand. This approach was also used in recent ENERGY STAR specifications for imaging equipment and monitors. B. Models Capable of Operating at Multiple Voltage/Freguencv Combinations: Manufacturers shall ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 16 ------- 593 test their products based on the market(s) in which the models will be sold and promoted as 594 ENERGY STAR qualified. EPA and its ENERGY STAR Country Partners have agreed upon a 595 table with three voltage/frequency combinations for testing purposes. Please refer to the Test 596 Conditions in the Test Procedure (Appendix A) for details regarding international 597 voltage/frequency combinations for each market. 598 599 For products that are sold as ENERGY STAR in multiple international markets and, therefore, 600 rated at multiple input voltages, the manufacturer must test at and report the required power 601 consumption or efficiency values at all relevant voltage/frequency combinations. For example, a 602 manufacturer that is shipping the same model to the United States and Europe must measure, 603 meet the specification, and report test values at both 115 Volts/60 Hz and 230 Volts/50 Hz in order 604 to qualify the model as ENERGY STAR in both markets. If a model qualifies as ENERGY STAR 605 at only one voltage/frequency combination (e.g., 115 Volts/60 Hz), then it may only be qualified 606 and promoted as ENERGY STAR in those regions that support the tested voltage/frequency 607 combination (e.g., North America and Taiwan). 608 Table 3: Test Procedures for Measuring Operational Modes Specification ^est pr0t0C0| Source Requirement Standby (Off Mode), Sleep Mode, Idle State and Maximum Power ENERGY STAR Computer Test Method (Version 4.0) Appendix A Power Supply Efficiency IPS: Internal Power Supply Efficiency Protocol EPS: ENERGY STAR Test Method for External Power Supplies IPS: www.efficientDowersuDDlies.org EPS: www.energystar.gov/DowersuDDlies 609 610 611 C. Qualifying Families of Products: Models that are unchanged or that differ only in finish from those 612 sold in a previous year may remain qualified without the submission of new test data assuming the 613 specification remains unchanged. If a product model is offered in the market in multiple 614 configurations or styles, as a product "family" or series, the partner may report and qualify the 615 product under a single model number, as long as all of the models within that family or series 616 meet either of the following requirements: 617 618 Computers that are built on the same platform and are identical in every respect except for 619 housing and color may be qualified through submission of test data for a single, 620 representative model. 621 622 If a product model is offered in the market in multiple configurations, the partner may report 623 and qualify the product under a single model number that represents the highest power 624 configuration available in the family, rather than reporting each and every individual model in 625 the family. In this case, the highest configuration would consist of: the highest power 626 processor, the maximum memory configuration, the most advanced GPU, etc. For desktop 627 systems which meet the definition for multiple desktop categories (as defined in section 3.A.2) 628 depending on the specific configuration, manufacturers will have to submit the highest power 629 configuration for each category under which they would like the system to qualify. For 630 example, a system that could be configured either as a Category A or a Category B desktop ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 17 ------- 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 would require a submittal of the highest power configuration for both categories in order to qualify as ENERGY STAR. If a product could be configured to meet all three categories, it would then have to submit data for the highest power configuration in all categories. Manufacturers will be held accountable for any efficiency claims made about all other models in the family, including those not tested or for which data was not reported. Note: Some stakeholders have expressed concern regarding qualifying the wide range of configurations possible in a built-to-order (BTO) landscape. EPA is introducing the approach included in the second bullet above in an attempt to allay these concerns. However, EPA welcomes the opportunity to work with partners to identify additional strategies for qualifying and labeling BTO products. 5) Effective Date: The date that manufacturers may begin to qualify products as ENERGY STAR, under this Version 4.0 specification, will be defined as the effective date of the agreement. Any previously executed agreement on the subject of ENERGY STAR qualified computers shall be terminated effective July 19, 2007. 1. Qualifying Products Under Tier 1 of the Version 4.0 Specification: The first phase of this specification will commence on July 20, 2007. All products, including models originally qualified under Version 3.0, with a date of manufacture on or after July 20, 2007, must meet the new (Version 4.0) requirements in order to qualify for ENERGY STAR. The date of manufacture is specific to each unit and is the date (e.g., month and year) of which a unit is considered to be completely assembled. Note: To allow manufacturers a full nine months after the specification is finalized the effective date of the Tier 1 requirements has been extended to July 20, 2007. 2. Qualifying Products Under Tier 2 of the Version 4.0 Specification: The second phase of this specification, Tier 2, will commence on January 1, 2009. All products, including models originally qualified under Tier 1, with a date of manufacture on or after January 1, 2009, must meet the Tier 2 requirements in order to qualify for ENERGY STAR. 3. Elimination of Grandfathering: EPA will not allow grandfathering under this Version 4.0 ENERGY STAR specification. ENERGY STAR qualification under previous versions is not automatically granted for the life of the product model. Therefore, any product sold, marketed, or identified by the manufacturing partner as ENERGY STAR must meet the current specification in effect at the time of manufacture of the product. 6) Future Specification Revisions: EPA reserves the right to revise the specification should technological and/or market changes affect its usefulness to consumers or industry or its impact on the environment. In keeping with current policy, revisions to the specification will be discussed with stakeholders. In the event of a specification revision, please note that ENERGY STAR qualification is not automatically granted for the life of a product model. To qualify as ENERGY STAR, a product model must meet the ENERGY STAR specification in effect on the model's date of manufacture. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 ------- 670 APPENDIX A 671 ENERGY STAR Test Procedure for Determining the 672 Power Use of Computers in Standby, Sleep, Idle and Maximum Power 673 674 The following protocol should be followed when measuring power consumption levels of computers for 675 compliance with the Standby, Sleep, and Idle levels provided in the ENERGY STAR Version 4.0 676 Computer Specification. Partners must measure a representative sample of the configuration as shipped 677 to the customer. However, the Partner does not need to consider power consumption changes that may 678 result from component additions made by the computer user after sale of product. This procedure is 679 intended to be followed in order and the mode being tested is labeled where appropriate. 680 681 I. Definitions 682 683 Unless otherwise specified, all terms used in this document are consistent with the definitions 684 contained in the Version 4.0 ENERGY STAR Eligibility Criteria for Computers. 685 686 UUT 687 UUT is an acronym for "unit under test," which in this case refers to the computer being tested. 688 689 UPS 690 UPS is an acronym for "Uninterruptible Power System," which refers to a combination of converters, 691 switches and energy storage means, for example batteries, constituting a power system for 692 maintaining continuity of load power in case of input power failure. 693 694 695 II. Testing Requirements 696 697 Approved Meter 698 Approved meters will include the following attributes1: 699 700 Power resolution of 1 mW or better; 701 An available current crest factor of 3 or more at its rated range value; and 702 Lower bound on the current range of 10mA or less. 703 704 EPA also suggests the following attributes in addition to those above: 705 706 Frequency response of at least 3 kHz; and 707 Calibration with a standard that is traceable to the U.S. National Institute of Standards and 708 Technology (NIST). 709 710 It is also desirable for measurement instruments to be able to average power accurately over any user 711 selected time interval (this is usually done with an internal math's calculation dividing accumulated 712 energy by time within the meter, which is the most accurate approach). As an alternative, the 713 measurement instrument would have to be capable of integrating energy over any user selected time 714 interval with an energy resolution of less than or equal to 0.1 mWh and integrating time displayed with 715 a resolution of 1 second or less. 716 717 Accuracy 718 Measurements of power of 0.5 Wor greater shall be made with an uncertainty of less than or equal to 719 2% at the 95% confidence level. Measurements of power of less than 0.5 W shall be made with an 720 uncertainty of less than or equal to 0.01 W at the 95% confidence level. The power measurement 721 instrument shall have a resolution of: 1 Characteristics of approved meters taken from IEC 62301 Ed 1.0: Measurement of Standby Power ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 19 ------- 722 723 0.01 W or better for power measurements of 10 W or less; 724 0.1 Wor better for power measurements of greater than 10 W up to 100 W; and 725 1 W or better for power measurements of greater than 100 W. 726 727 All power figures should be in watts and rounded to the second decimal place. For loads greater than 728 or equal to 10 W, three significant figures shall be reported. 729 730 Test Conditions 731 Supply Voltage: North America/Taiwan: 115 (ฑ 1 %) Volts AC, 60 Hz (ฑ 1 %) Europe/Australia/New Zealand: 230 (ฑ 1%) Volts AC, 50 Hz (ฑ 1%) Japan: 100 (ฑ 1 %) Volts AC, 50 Hz (ฑ 1 %)/60 Hz (ฑ 1 %) Note: For products rated for > 1.5 kW maximum power, the voltage range is ฑ 4% Total Harmonic Distortion (THD) (Voltage): < 2% THD (< 5% for products which are rated for > 1.5 kW maximum power) Ambient Temperature: 23ฐCฑ5ฐC Relative Humidity: 10-80 % 732 (Reference IEC 62301: Household Electrical Appliances - Measurement of Standby Power, Sections 3.2, 3.3) 733 Note: To accommodate comments received from stakeholders, EPA has added a 100V testing condition for the applicable markets, and further harmonized the test conditions with other ENERGY STAR 7^4 specifications such as that for Imaging Equipment. 735 736 Test Configuration 737 Power consumption of a computer shall be measured and tested from an ac source to the UUT. 738 739 The UUT must be connected to an Ethernet network switch capable of the UUT's highest and lowest 740 network speeds. The network connection must be live during all tests. 741 742 743 III. Test Procedure for Standby, Sleep and Idle for All Products 744 Measurement of ac power consumption of a computer should be conducted as follows: 745 746 UUT Preparation 747 1. Record the manufacturer and model name of the UUT. 748 2. Ensure that the UUT is connected to a live Ethernet (IEEE 802.3) network switch as specified in 749 Section II., "Test Configuration," above, and that the connection is live. The computer must 750 maintain this live connection to the switch for the duration of testing, disregarding brief lapses 751 when transitioning between link speeds. 752 3. Connect an approved meter capable of measuring true power to an ac line voltage source set to 753 the appropriate voltage/frequency combination for the test. 754 4. Plug the UUT into the measurement power outlet on the meter. No power strips or UPS units 755 should be connected between the meter and the UUT. For a valid test to take place the meter 756 should remain in place until all Standby, Sleep, and Idle power data is recorded. 757 5. Record the ac voltage. 758 6. Boot computer and wait until the operating system has fully loaded. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 20 ------- 759 7. 760 761 8. 762 763 9. 764 765 766 767 768 769 770 771 772 773 774 775 776 777 10 778 779 780 781 782 783 784 11 785 Record basic information about the computer's configuration - computer type, operating system name and version, processor type and speed, and total and available physical memory, etc.2 Record basic information about the video card - video card name, resolution, amount of onboard memory, and bits per pixel.3 Ensure that the UUT is configured as shipped including all accessories, power management settings, WOL enabling and software shipped by default. UUT should also be configured using the following requirements for all tests: a. Desktop systems (including workstations and desktop-derived servers) shipped without accessories should be configured with a standard mouse, keyboard and external monitor. b. Notebooks and tablets should include all accessories shipped with the system, and need not include a separate keyboard or mouse when equipped with an integrated pointing device or digitizer. c. Notebooks and tablets should have the battery pack(s) removed for all tests. For systems where operation without a battery pack is not a supported configuration, the test may be performed with fully charged battery pack(s) installed, making sure to report this configuration in the test results. d. Power to wireless radios should be turned off for all tests. This applies to wireless network adapters (e.g., 802.11) or device to device wireless protocols. The following guidelines should be followed to set power settings for displays (adjusting no other power management settings): a. For computers with external displays (most desktops): use the monitor power management settings to prevent the monitor from powering down to ensure it stays on for the full length of the Idle test as described below. b. For computers with integrated monitors (notebooks, tablets and integrated systems): use the power management settings to set the monitor to power down after 1 minute. Note: Stakeholder comments revealed that some notebooks are not designed to operate with the battery removed, resulting in higher than normal Idle power consumption. To accommodate this, EPA has reinstated the option of testing with a fully charged battery for such systems, asking only that manufacturers note this change when reporting test results to EPA. Based on stakeholder comments, the test conditions were changed to specify that all wireless radios be turned off during testing, as these devices can cause irregularities in Idle power consumption. Stakeholders also felt the specification should not create a disincentive which keeps manufacturers from enabling this technology on shipment to allow for ease of use out of the box. Some stakeholders commented that the test procedure does not explicitly indicate whether computers with external display should be tested with the monitor on or off. To fully capture the power draw of computers in Idle, EPA has indicated that the power management settings should be adjusted for computers with external displays to ensure the monitor is on for the duration of the Idle test. 786 787 788 Standby (Off Mode) Testing 789 12. With the UUT shut down and in Standby, set the meter to begin accumulating true power values at 790 an interval of 1 reading per second. Accumulate power values for 5 additional minutes and record 791 the average (arithmetic mean) value observed during that 5 minute period.4 2 On Windows-based machines, much of this can be found by selecting the following window: Start / Programs / Accessories / System Tools / System Information. 3 On Windows-based machines, this ca System Tools / Components / Display. 3 On Windows-based machines, this can be found by selecting the following window: Start / Programs /Accessories / ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 21 ------- 792 793 Idle Mode Testing 794 13. Switch on the computer and begin recording elapsed time, starting either when the computer is 795 initially switched on, or immediately after completing any log in activity necessary to fully boot the 796 system. Once logged in with the operating system fully loaded and ready, close any open 797 windows so that the standard operational desktop screen or equivalent ready screen is displayed. 798 Exactly 15 minutes after the initial boot or log in, set the meter to begin accumulating true power 799 values at an interval of 1 reading per second. Accumulate power values for 5 additional minutes 800 and record the average (arithmetic mean) value observed during that 5 minute period. 801 802 Sleep Mode Testing 803 14. After completing the Idle measurements, place the computer in Sleep mode. Reset the meter (if 804 necessary) and begin accumulating true power values at an interval of 1 reading per second. 805 Accumulate power values for 5 additional minutes and record the average (arithmetic mean) value 806 observed during that 5 minute period. 807 15. If testing both WOL enabled and WOL disabled for Sleep, wake the computer and change the 808 WOL from Sleep setting through the operating system settings or by other means. Place the 809 computer back in Sleep mode and repeat step 14, recording Sleep power necessary for this 810 alternate configuration. 811 812 Reporting Test Results 813 16. The test results must be reported to EPA using the Online Product Submittal (OPS) Tool, taking 814 care to ensure that all required information has been included. 815 816 IV. Maximum Power Test for Workstations 817 818 The maximum power for workstations is found by the simultaneous operation of two industry standard 819 benchmarks: Linpackto stress the core system (e.g., processor, memory, etc.) and ViewPerf to stress 820 the system's GPU. Additional information on these benchmarks, including free downloads, can be 821 found at the URLs found below: 822 Unpack http://www.netlib.org/linpack/ ViewPerf http://www.spec.org/qpc/opc.static/vp81info.html 823 824 This test must be repeated three times on the same UUT, and all three measurements must fall within 825 a ฑ 2% tolerance relative to the average of the three measured maximum power values. 826 Measurement of the maximum ac power consumption of a workstation should be conducted as 827 follows: 828 UUT Preparation 829 1. Connect an approved meter capable of measuring true power to an ac line voltage source set to 830 the appropriate voltage/frequency combination for the test. The meter should be able to store and 831 output the maximum power measurement reached during the test or be capable of another 832 method of determining maximum power. 833 2. Plug the UUT into the measurement power outlet on the meter. No power strips or UPS units 834 should be connected between the meter and the UUT. 835 3. Record the ac voltage. 836 4. Boot the computer and, if not already installed, install Linpack and ViewPerf as indicated on the 837 above Websites. 4 Laboratory-grade, full-function meters can integrate values over time and report the average value automatically. Other meters would require the user to capture a series of changing values every 5 seconds for a five minute period and then compute the average manually. ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 22 ------- 838 5. Set Linpackwith all the defaults for the given architecture of the UUT and set the appropriate 839 array size "n" for maximizing power draw during the test. 840 6. Ensure all guidelines set by the SPEC organization for running ViewPerf are being met. 841 842 843 Maximum Power Testing 844 7. Set the meter to begin accumulating true power values at an interval of 1 reading per second, and 845 begin taking measurements. Run ViewPerf and as many simultaneous instances of Linpack as 846 needed to fully stress the system. 847 8. Accumulate power values until ViewPerf and all instances have completed running. Record the 848 maximum power value attained during the test. 849 850 Reporting Test Results 851 9. The test results must be reported to EPA using the Online Product Submittal (OPS) Tool, taking 852 care to ensure that all required information has been included. 853 10. Upon submittal of data to EPA, the value of the n (the array size) must be submitted as well as the 854 number of simultaneous copies of Linpack run during the test. All compiler optimizations used in 855 compiling Linpack and ViewPerf must also be submitted to EPA. Lastly, all OEMs must provide a 856 precompiled binary for end users to download and run of both ViewPerf and Linpack. These can 857 be distributed either through a centralized standards body such as SPEC, by the OEM or by a 858 related third party. 859 Note: Based on extensive EPA-lndustry cooperation, a standardized methodology for determining max power was agreed upon and has been included here. This method uses publicly available tools allowing for independent third party verification of test results. EPA is open to receiving feedback on the suggested test method for maximum power included in this test method. 860 861 862 V. Continuing Verification 863 864 This testing procedure describes the method by which a single unit may be tested for compliance. An 865 ongoing testing process is highly recommended to ensure that products from different production runs 866 are in compliance with ENERGY STAR. 867 ENERGY STAR Program Requirements for Computers: Final Draft Version 4.0 23 ------- |