ENERGY STAR® Program Requirements
Product Specification for Computers
Eligibility Criteria
Draft 2, Version 9.0
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Following is the Draft 2, Version 9 ENERGY STAR Product Specification for Computers. A product shallmeet all of the identified criteria if it is to earn the ENERGY STAR.

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1 DEFINITIONS

4A) Product Types:

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1) Computer: A device which performs logical operations and processes data. For the purposes ofthis specification, computers include both stationary and portable units, including Desktop
Computers, Integrated Desktop Computers, Notebook Computers, Small-Scale Servers, Thin
Clients, and Workstations. Although computers are capable of using input devices and displays,
such devices are not required to be included with the computer upon shipment. Computers arecomposed of, at a minimum:

1112a) A central processing unit (CPU) to perform operations. If no CPU is present, then the device
must function as a client gateway to a server which acts as a computational CPU;

13b) User input devices such as a keyboard, mouse, or touchpad; and

1415c) An Integrated Display screen and/or the ability to support an external display screen to output
information.

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2) Desktop Computer: A Computer whose main unit is designed to be located in a permanent
location, often on a desk or on the floor. Desktop computers are not designed for portability andare designed for use with an external display, keyboard, and mouse. Desktop computers areintended for a broad range of home and office applications, including point of sale applications.

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a) Integrated Desktop Computer: A Desktop Computer in which the computing hardware anddisplay are integrated into a single housing, and which is connected to ac mains power
through a single cable. Integrated Desktop 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) asystem packaged as a single system where the display is separate but is connected to themain chassis by a dc power cord and both the computer and display are powered from asingle power supply. As a subset of Desktop Computers, Integrated Desktop Computers are
typically designed to provide similar functionality as Desktop systems.

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3) Notebook Computer: A Computer designed specifically for portability and to be operated forextended periods of time both with and without a direct connection to an ac mains power source.
Notebook Computers include an Integrated Display, a non-detachable mechanical keyboard(using physical, moveable keys), and pointing device.

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a) Mobile Thin Client: A Computer meeting the definition of a Thin Client, designed specificallyfor portability, and meeting the definition of a Notebook Computer. These products are
considered to be Notebook Computers for the purposes of this specification.

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b) Two-In-One Notebook: A Computer which resembles a traditional Notebook Computer with aclam shell form factor but has a detachable display which can act as an independent
Slate/Tablet when disconnected. The keyboard and display portions of the product must be
shipped as an integrated unit. Two-In-One Notebooks are considered Notebooks in theremainder of this specification and are therefore not referenced explicitly.

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c) Mobile Workstation: A Computer which meets the definition of Notebook Computer and isdesigned for use in professional workflows such as architecture, engineering, computer aided
drafting, product development, financial applications, scientific applications, and/or content
creation. It must also meet all of the following criteria:

44(1) Has a mean time between failures (MTBF) of at least 13,000 hours;

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(2) Certification by 4 or more Independent Software Vendor (ISV) product certifications in
professional workflows (see examples above). These certifications can be in process,but partner shall ensure they are completed within 6 months of the date the productbecomes available on the market;

49(3) Supports at least 32 gigabytes of system memory; and

50(4) Supports either:5152(a) At least one integrated or discrete GPU with frame buffer bandwidth of 96
gigabytes per second or greater; or

5354(b) A total of 4 gigabytes or more of system memory with a bandwidth of 134
gigabytes per second or greater and an integrated GPU.

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d) Multi-Screen Notebook: A Computer which resembles a traditional Notebook Computer with aclam shell form factor but has a secondary display with touch and/or pen capability that canbe used as a touch screen keyboard in place of a traditional mechanical keyboard. These
products are considered to be Notebook Computers for purposes of this specification.
4) Slate/Tablet: A computing device designed for portability that meets all of the following criteria:6061a) Includes an integrated display with a diagonal size greater than 7.0 inches and less than 17.4
inches;62b) Lacking an integrated, physical attached keyboard in its as-shipped configuration;

63c) Includes and primarily relies on touchscreen input; (with optional keyboard);

64d) Includes and primarily relies on a wireless network connection (e.g., Wi-Fi, 3G, etc.); and6566e) Includes and is primarily powered by an internal battery (with connection to the mains forbattery charging, not primary powering of the device).

67685) Portable All-In-One Computer: A computing device designed for portability that meets all of thefollowing criteria:

69a) Includes an integrated display with a diagonal size greater than or equal to 17.4 inches;7071b) Lacking keyboard integrated into the physical housing of the product in its as-shipped
configuration;

72c) Includes and primarily relies on touchscreen input; (with optional keyboard);

73d) Includes wireless network connection (e.g. Wi-Fi, 3G, etc.); and74e) Includes an internal battery

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6) E-Reader: A device designed for display and consumption of static images. The display ischaracterized by a low refresh rate and a display made of bistable materials where no energy isneeded to maintain a visible image, only to alter the image.

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7) Small-scale Server: A Computer that typically uses desktop components in a desktop form factor
but is designed primarily to be a storage host for other computers. Small-scale Servers aredesigned to perform functions such as providing network infrastructure services (e.g., archiving)and hosting data/media. These products are not designed to process information for othersystems or run web servers as a primary function. A Small-scale Server has the following
characteristics:

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a) Designed in a pedestal, tower, or other form factor similar to those of desktop computerssuch that all data processing, storage, and network interfacing is contained within one
box/product;

8788b) Designed to operate 24 hours/day, 7 days/week, with minimal unscheduled downtime (on theorder of hours/year);8990c) Capable of operating in a simultaneous multi-user environment serving several users throughnetworked client units; and9192d) Designed for an industry accepted operating system for home or low-end server applications(e.g., Windows Home Server, Mac OS X Server, Linux, UNIX, Solaris).

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8) Thin Client: An independently-powered Computer that relies on a connection to remotecomputing resources (e.g., computer server, remote workstation) to obtain primary functionality.
Main computing functions (e.g., program execution, data storage, interaction with other Internet
resources) are provided by the remote computing resources. Thin Clients covered by thisspecification are (1) limited to devices with no rotational storage media integral to the computerand (2) designed for use in a permanent location (e.g. on a desk) and not for portability.

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a) Integrated Thin Client: A Thin Client in which computing hardware and display areconnected to ac mains power through a single cable. Integrated Thin Client computerscome 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 cordand both the computer and display are powered from a single power supply. As a subsetof Thin Clients, Integrated Thin Clients are typically designed to provide similarfunctionality as Thin Client systems.

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b) Ultra-thin Client: A Computer with lesser local resources than a standard Thin Client that
sends raw mouse and keyboard input to a remote computing resource and receives backraw video from the remote computing resource. Ultra-thin clients cannot interface withmultiple devices simultaneously nor run windowed remote applications due to the lack ofa user-discernible client operating system on the device (i.e., beneath firmware, user
inaccessible).

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9) Workstation: A high-performance, Computer used for professional workflows such asarchitecture, engineering, computer aided drafting, product development, financial applications,scientific applications and/or content creation. Workstations covered by this specification (a) aremarketed as a workstation; (b) do not support altering frequency or voltage beyond the CPU andGPU manufacturers’ as-shipped operating specifications; and (c) have system hardware that
supports an error-correcting mechanism that detects and corrects data errors with dedicatedcircuitry on and across the CPU, interconnect, and system memory. In addition, a workstationmust have 4 or more Independent Software Vendor (ISV) product certifications in professional
workflows (see examples above). These certifications can be in process, but partner shall ensure
they are completed within 6 months of the date the product becomes available on the market.

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10) Rack-mounted Workstation: A Workstation that is designed to be natively rack mounted as
described in IEC 60297-3-101:2004. The rack-mounted workstation may be accessed locally bydirect connection to the workstation and display or accessed remotely across a network by one ormore users.

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B) Product Category: A second-order classification or sub-type within a product type that is based on
product features and installed components. Product categories are used in this specification todetermine certification and test requirements.

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130C) Computer Components:

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1) Central Processing Unit (CPU): A central processing unit, also called a central processor, mainprocessor or just processor, is the electronic circuitry that executes, including but not limited to,floating point or integer-based instructions comprising a computer program. Many processors
contain multiple Cores to perform these instructions.

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2) Core: A single functional unit of a CPU that handles software instructions such as arithmetic,
floating point, and other data manipulation.

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3) System on Chip (SoC): An integrated circuit that integrates most or all components (CPU,memory, IO, graphics, storage) of a full computer system or other electronic system on a single
silicon substrate or package.

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4) Graphics Processing Unit (GPU): An integrated circuit, separate from the CPU, designed toaccelerate the rendering of either 2D and/or 3D content to displays. A GPU may be mated with aCPU, on the system board of the computer or elsewhere to offload display capabilities from the
CPU.

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5) Discrete Graphics (dGfx): A graphics processor (GPU) which must contain a local memory
controller interface and local graphics-specific memory.

1466) Integrated Graphics (iGfx): A graphics solution that does not contain Discrete Graphics.

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7) Display: A commercially-available product with a display screen and associated electronics, often
encased in a single housing, that as its primary function displays visual information from (1) acomputer, workstation or server via one or more inputs (e.g., VGA, DVI, HDMI, DisplayPort, IEEE
1394, USB), (2) external storage (e.g., USB flash drive, memory card), or (3) a network
connection.

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a) Enhanced-performance Integrated Display: An integrated Computer Display that has allof the following features and functionalities:

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(1) A contrast ratio of at least 60:1 at a horizontal viewing angle of at least 85°, with orwithout a screen cover glass;156(2) A native resolution greater than or equal to 2.3 megapixels (MP); and

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(3) A color gamut of at least sRGB as defined by IEC 61966-2-1. Shifts in color space
are allowable as long as 99% or more of defined sRGB colors are supported.

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8) External Power Supply (EPS): Also referred to as External Power Adapter. An external power
supply circuit that is used to convert household electric current into dc current or lower-voltage ac
current to operate a consumer product.

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9) Internal Power Supply (IPS): A component internal to the computer casing and designed toconvert ac voltage from the mains to dc voltage(s) for the purpose of powering the computercomponents. For the purposes of this specification, an internal power supply shall be contained
within the computer casing but be separate from the main computer board. The power supply
shall 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 tothe computer components, with the exception of a DC connection to a display in an Integrated
Desktop Computer, shall be internal to the computer casing (i.e., no external cables running fromthe power supply to the computer or individual components). Internal dc-to-dc converters used toconvert a single dc voltage from an external power supply into multiple voltages for use by thecomputer are not considered internal power supplies.

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10) System Memory Bandwidth: The rate at which data can be read or stored into computer system’s
memory, expressed in gigabytes per second (GB/s).

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175D) Operational Modes:

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1) Active State: The power state in which the computer is carrying out useful work in response to a)prior or concurrent user input or b) prior or concurrent instruction over the network. Active State
includes active processing, seeking data from storage, memory, or cache, including Idle State
time while awaiting further user input and before entering low power modes.

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2) Idle State: The power state in which the operating system and other software have completed
loading, a user profile has been created, activity is limited to those basic applications that thesystem starts by default, and the computer is not in Sleep Mode. Idle State is composed of two
sub-states: Short Idle and Long Idle.

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a) Long Idle: The mode where the computer has reached an Idle condition (i.e., 15 minutes
after OS boot or after completing an active workload or after resuming from Sleep Mode)and the main Computer Display has entered a low-power state where screen contents
cannot be observed (i.e., backlight has been turned off) but remains in the working mode
(ACPI G0/S0). If power management features are enabled as-shipped in the scenario
described in this definition, such features shall engage prior to evaluation of Long Idle
(e.g., display is in a low power state, HDD may have spun-down), but the Computer isprevented from entering Sleep Mode. PLONG_IDLE represents the average power measured
when in the Long Idle Mode.

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b) Short Idle: The mode where the computer has reached an Idle condition (i.e., 5 minutes
after OS boot or after completing an active workload or after resuming from Sleep Mode),the screen is on, and Long Idle power management features have not engaged (e.g.
HDD is spinning and the Computer is prevented from entering sleep mode). PSHORT_IDLE
represents the average power measured when in the Short Idle Mode.

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3) Off Mode: The lowest power mode which cannot be switched off (influenced) by the user and thatmay persist for an indefinite time when the appliance is connected to the main electricity supply
and used in accordance with the manufacturer’s instructions. For systems where ACPI standards
are applicable, Off Mode correlates to ACPI System Level S5 state.

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4) Sleep Mode: A low power mode that the computer enters automatically after a period of inactivity
or by manual selection. A computer with Sleep capability can quickly “wake” in response to
network connections or user interface devices from initiation of wake event to a readable display.
For systems where ACPI standards are applicable, Sleep Mode most commonly correlates to
ACPI System Level S3 (suspend to RAM) state or, for workstations without resume-time limits,
ACPI System Level S4 (hibernate). PSLEEP represents the average power measured when in the
Sleep Mode.

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Note: The EPA received feedback requesting clarification that resume-time requirements are notapplicable to workstations and that workstations are capable of ACPI System Level S4 for their sleep
mode. This has been clarified in the sleep mode definition above.

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5) Alternative Low Power Mode (ALPM): A low power mode that the computer enters automaticallyafter a period of inactivity or by manual selection that is defined by the display turning off and thecomputer entering a state of reduced functionality. A computer with Alternative Low Power Mode
must maintain immediate responsiveness to network connections or user interface devices. PALPM
represents the average power measured when in the Alternative Low Power Mode.

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E) Networking and Additional Capabilities:

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1) Additional Internal Storage: Any and all internal hard disk drives (HDD) or solid-state drives (SSD)
installed beyond the primary storage device where the operating system is installed in the
products as-shipped state. This definition does not include external drives.

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2) Energy Efficient Ethernet (EEE): A technology which enables reduced power consumption of
Ethernet interfaces during times of low data throughput. Specified by IEEE 802.3az.

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3) Full Network Connectivity: The ability of the computer to maintain network presence while in
Sleep Mode or an Alternative Low Power Mode (ALPM) with power demand of less than or equal
to 10 watts and intelligently wake when further processing is required (including occasional
processing required to maintain network presence). Presence of the computer, its network
services and applications, is maintained even though the computer is in an ALPM. From thevantage point of the network, a computer with full network connectivity that is in ALPM isfunctionally equivalent to an idle computer with respect to common applications and usage
models. Full network connectivity in ALPM is not limited to a specific set of protocols but cancover applications installed after initial installation. Also referred to as “network proxy”
functionality and as described in the Ecma-393 standard.

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a) Network Proxy - Base Capability: To maintain addresses and presence on the network while
in Sleep Mode or ALPM, the system handles IPv4 ARP and IPv6 NS/ND.

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b) Network Proxy - Full Capability: While in Sleep Mode or ALPM, the system supports BaseCapability, Remote Wake, and Service Discovery/Name Services.

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c) Network Proxy - Remote Wake: While in Sleep Mode or ALPM, the system is capable ofremotely waking upon request from outside the local network. Includes Base Capability.

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d) Network Proxy - Service Discovery/Name Services: While in Sleep Mode or ALPM, thesystem allows for advertising host services and network name. Includes Base Capability.

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4) Constant Network Connectivity: A capability that allows the wake of system operating system orsoftware to facilitate communication and downloads from the network (e.g. instant messaging,email, management and maintenance tasks, etc.)

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5) Network Interface: The components (hardware and software) whose primary function is to makethe computer capable of communicating over one or more network technologies. Examples of
Network Interfaces are IEEE 802.3 (Ethernet) and IEEE 802.11 (Wi-Fi).

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6) Wake Event: A user, scheduled, or external event or stimulus that causes the computer totransition from Sleep Mode or Off Mode to an active state of operation. Examples of wake events
include, but are not limited to: movement of the mouse, keyboard activity, controller input, realtime clock event, or a button press on the chassis, and in the case of external events, stimulus
conveyed via a remote control, network, modem, etc.

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7) Wake On LAN (WOL): Functionality which allows a computer to transition from Sleep Mode or Off
Mode to an Active State of operation when directed by a network Wake Event via Ethernet.

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8) Switchable Graphics: Functionality that allows Discrete Graphics to be disabled when not
required in favor of Integrated Graphics.

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Note: This functionality allows lower power and lower capability integrated GPUs to render the
display while on battery or when the output graphics are not overly complex while then allowing
the more power consumptive but more capable discrete GPU to provide rendering capability
when required.
F) Marketing and Shipment Channels:

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1) Enterprise Channels: Sales channels typically used by large and medium-sized business,government, educational, or other organizations to purchase computers for use in managed
client/server environments.

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2) Model Name: A marketing name that includes reference to the computer model number, productdescription, or other branding references.

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3) Model Number: A unique marketing name or identification reference that applies to a specifichardware and software configuration (e.g., operating system, processor type, memory, GPU), andis either pre-defined or selected by a customer.

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G) Product Family: A high-level description referring to a group of computers sharing one
chassis/motherboard combination that often contains hundreds of possible hardware and software
configurations. Product models within a family differ from each other according to one or morecharacteristics or features that either (1) have no impact on product performance with regard to
ENERGY STAR certification criteria, or (2) are specified herein as acceptable variations within a
product family. For Computers, acceptable variations within a product family include:275

1) Color;

2762) Housing; and

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3) Electronic components other than the chassis/motherboard, such as the processor,
memory, GPU, etc.

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2 SCOPE

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2.1

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2.1.1

Included Products
Products that meet the definition of a Computer and one of the following Product Type definitions,as specified herein, are eligible for ENERGY STAR certification, with the exception of products
listed in Section 2.2:

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i.

Desktop Computers and Integrated Desktop Computers;

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ii.

Notebook Computers;

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iii. Slates/Tablets;

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iv. Portable All-In-One Computers;

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v.

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vi. Thin Clients.

Workstations; and

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2.2

Excluded Products

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2.2.1

Products that are covered under other ENERGY STAR product specifications are not eligible forcertification under this specification. The list of specifications currently in effect can be found atwww.energystar.gov/products.

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2.2.2

The following products are not eligible for certification under this specification:

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Docking Stations;

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ii.

Game Consoles;

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iii. E-Readers;

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iv. Handheld gaming devices, typically battery powered and intended for use with an integral
display as the primary display;

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v.

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vi. Personal Digital Assistant devices (PDAs);

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vii. Point of Sale (POS) products that do not use internal components common to Notebook,
Desktop, or Integrated Desktop Computers, including a processor, motherboard, andmemory;305

viii. Slate/Tablet based POS products;306

ix. Handheld Computers and Slates/Tablets which contain cellular voice capability;

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x.

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xi. Ultra-thin Clients; andMobile Thin Clients not meeting the definition of Notebook Computer;Open Pluggable Specification (OPS) modules;

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xii. Small-scale Servers.

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3 CERTIFICATION CRITERIA

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3.1

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3.1.1

All calculations shall be carried out with directly measured (unrounded) values.

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3.1.2

Unless otherwise specified in this specification, compliance with specification limits shall be
evaluated using directly measured or calculated values without any benefit from rounding.

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3.1.3

Directly measured or calculated values that are submitted for reporting on the ENERGY STAR
website shall be rounded to the nearest significant digit as expressed in the corresponding
specification limit.

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3.2

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3.2.1

Power supply test data and test reports from testing entities recognized by EPA to perform power
supply testing shall be accepted for the purpose of certifying the ENERGY STAR product.

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3.2.2

Internal Power Supply (IPS) Requirements: IPSs used in Computers eligible under thisspecification must meet the following requirements when tested using the Generalized InternalPower Supply Efficiency Test Protocol, Rev. 6.7.1 (available athttps://www.plugloadsolutions.com/docs/collatrl/print/Generalized_Internal_Power_Supply_Efficie
ncy_Test_Protocol_R6.7.1.pdf ).

Significant Digits and Rounding

General Requirements

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i.

IPS with maximum rated output power less than 75 watts shall meet minimum efficiency
requirements as specified in Table 1.

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ii.

IPS with maximum rated output power greater than or equal to 75 watts shall meet bothminimum efficiency requirements and minimum power factor requirements, as specified inTable 1 and Table 2 as applicable.

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Table 1: Requirements for Internal Power Supplies with Rated Output of 500 Watts and Below
Loading Condition(Percentage of Nameplate
Output Current)
10%
20%
50%

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100%

Minimum
Efficiency

Minimum
Power Factor

0.80
0.82
0.85

0.90

0.82

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Table 2: Requirements for Internal Power Supplies with Rated Output Above 500 Watts
Loading Condition(Percentage of Nameplate
Output Current)
10%
20%
50%
100%

Minimum
Efficiency

Minimum
Power Factor

0.80
0.87
0.90
0.87

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Note: The EPA received verbal and written feedback explaining that many smaller IPSs below 500 watts
cannot meet 80Plus Silver requirements but are more efficient at 10% loading point than products listed
as 80Plus Bronze, which is not a loading point addressed by the 80Plus program. As such, industry hasrequested that the EPA maintain the 80Plus bronze equivalent requirements for the 20%-100% loading
points for these smaller power supplies while industry continues to focus on improving efficiency at the
10% loading point which is a more relevant operating range for many lower power products in daily use.

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As such, the EPA has reverted the IPS requirements below 500 watts to 80Plus bronze equivalent while
retaining the existing additional 10% load point requirement and encourages partners to continue theirinnovation on low load efficiency in smaller power supplies to minimize loss in lower power modes.

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3.2.3

External Power Supply (EPS) Requirements: Single- and Multiple-voltage EPSs shall meet theLevel VI or higher performance requirements under the International Efficiency Marking Protocol
when tested according to the Uniform Test Method for Measuring the Energy Consumption ofExternal Power Supplies, Appendix Z to 10 CFR Part 430.

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i.

Single-voltage EPSs shall include the Level VI or higher marking.

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ii.

Adaptive EPSs meeting Level VI or higher shall include the Level VI or higher marking.

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iii. Additional information on the Marking Protocol is available
at http://www.regulations.gov/#!documentDetail;D=EERE-2008-BT-STD-0005-0218

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3.2.4

Energy Efficient Ethernet (EEE) Requirements: All products which contain one or more Ethernet
ports with a bandwidth of 1Gb/s or higher shall have EEE enabled as-shipped in each of these
ports in their as-shipped configuration.

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3.3

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3.3.1

Power Management Requirements
Products shall include power management features in their “as-shipped” condition as specified inTable 3, subject to the following conditions:

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i.

For Thin Clients, the Wake-on-LAN (WOL) requirement shall apply for products designed toreceive software updates from a centrally managed network while in Sleep Mode or in Off
Mode. Thin Clients whose standard software upgrade framework does not require off-hours
scheduling are exempt from the WOL requirement.

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ii.

For Notebooks, WOL may be automatically disabled when the product is disconnected fromac mains power.

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iii. For all products with WOL, directed packet filters shall be enabled and set to an industry
standard default configuration.

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iv. Products that do not support Sleep Mode by default are only subject to the Display Sleep
Mode requirement.

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Thin Clients

Workstations

Wake
Management

Slates/Tablets

Wake onLAN(WOL)

Notebooks

Display
Sleep
Mode(1) Sleep/Alternative Low Power
Mode shall be set to activate after nomore than 30 minutes of user
inactivity.
(2) The speed of any active 1 Gb/s or
faster Ethernet network links shall be
reduced when transitioning to Sleep
Mode or Off Mode.
Or the links shall enter Energy
Efficient Ethernet state whentransitioning to Alternative Low PowerMode(1) Display Sleep Mode shall be set toactivate after no more than 15
minutes of user inactivity.
(1) Computers with Ethernet
capability shall provide users with an
option to enable and disable WOL for
Sleep Mode.
(2) Computers with Ethernet
capability that are shipped throughenterprise channels shall either:(a) be shipped with WOL enabled
by default for Sleep Mode, when thecomputer is operating on ac mains
power; or(b) provide users with the ability toenable WOL that is accessible fromboth the client operating systemuser interface and over the
network ii.
(1) Computers with Ethernet
capability that are shipped throughenterprise channels shall:(a) be capable of both remote (via
network) and scheduled (via realtime clock) wake events from Sleep
Mode, and(b) provide clients with the ability tocentrally manage (via vendor tools)
any wake management settings thatare configured through hardware
settings if the manufacturer has
control over such features.

Portable All-In-Ones

SystemSleep i/Alternative
Low
Power
Mode

Requirement

Integrated Desktops

Mode or
Mode
Transition

Desktops

Table 3: Power Management Requirements

369

Yes

Yes

Yes

Yes

N/A

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Yes

Yes

Yes

Yes

Yes

Yes

N/A

Yes

Yes

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

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371

3.4

372

3.4.1

User Information Requirements
Products shall be shipped with informational materials to notify customers of the following:

373

i.

A description of power management settings that have been enabled by default,

374

ii.

A description of the timing settings for various power management features, and375

iii. Instructions for properly waking the product from Sleep Mode.

376

3.4.2

Products shall be shipped with one or more of the following:

377

i.

A list of default power management settings.

378
379
380
381

ii.

A note stating that default power management settings have been selected for compliancewith ENERGY STAR (within 15 min of user inactivity for the display, within 30 min for thecomputer, if applicable per Table 3), and are recommended by the ENERGY STAR programfor optimal energy savings.

382
383
384

iii. Information about ENERGY STAR and the benefits of power management, to be located ator near the beginning of the hard copy or electronic user manual, or in a package or box
insert.

385
386

3.4.3

Provisions 3.4.1 and 3.4.2 may be met through use of either electronic or printed productdocumentation, provided it adheres to all of the following:

387
388
389
390
391

i.

Documentation is shipped with the product (e.g., in a printed manual or insert, on included
optical media, in a file installed with the software load shipped to the customer) or available
electronically on the manufacturer’s website. In the latter case, instructions for accessing theinformation on the website shall be provided in the product package or on the Desktop or
home screen; and

392
393
394

ii.

Documentation is included either (a) only with ENERGY STAR certified Computers; or (b) as
part of the standard documentation if and only if accompanied by EPA-approved customer
guidance on how to identify if their computer configuration is ENERGY STAR certified.

395

3.5

Requirements for Desktop, Integrated Desktop, and Notebook Computers

396
397
398
399
400
401
402

3.5.1

403
404
405

Note: The EPA has clarified that resume time requirements do not apply to mobile workstations,workstations or thin clients. This was always the case, but the EPA received stakeholder feedback
requesting that this be explicitly stated to avoid any potential confusion during the certification process.

406
407
408

3.5.2

Resume Time Requirement: Notebook computers are required to wake from sleep or analternative low power mode with a latency of less than or equal to 5 seconds from initiation of
wake event to system becoming fully usable including rendering of display. Desktop andIntegrated Desktop Computers shall meet this same requirement, but with a latency of less thanor equal to 10 seconds. Manufacturers shall self-declare that the product can meet thisrequirement iii. Resume time requirements do not apply to mobile workstations, workstations, orthin clients.

Calculated Annual Typical Energy Consumption (ETEC) for Desktop, Integrated Desktop, andNotebook Computers per Equation 1 shall be less than or equal to the maximum TEC
requirement (ETEC_MAX) per Equation 2, subject to the following requirements:

i Where Sleep Mode is supported by the unit under test by default and Sleep Mode power is used as partof the TEC equation for qualification.
ii Option (b) is not permitted for systems that use WOL in order to meet the definition of Full Network
Connectivity to claim the Full Capability mode weighting.
iii For purposes of ENERGY STAR third-party certification, these requirements shall not be reviewed
when products are initially certified nor during subsequent verification testing. Rather, EPA reserves theright to request supporting documentation at any time.

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 11 of 19

409
410
411

i.

The Additional Internal Storage adder allowance (TECSTORAGE) shall be applied if there are
more than one internal storage devices present in the product, in which case it shall only beapplied once.

412
413
414

ii.

The Integrated Display adder allowance (TECINT_DISPLAY) applies only for Integrated Desktops
and Notebooks and may be applied for each display. For Enhanced-performance Integrated
Displays, the adder is calculated as presented in Table 7 and Equation 3.

415
416
417
418
419
420
421

iii. For Notebooks, Desktops, and Integrated Desktops that use an Alternative Low Power Modein place of System Sleep Mode and Long Idle Mode, power in Alternative Low Power Mode
(PALPM) may be used in place of both the power in Sleep (PSLEEP) and the power in Long Idle
(PLONG_IDLE) in Equation 1 if the Alternative Low Power Mode measured power is less than orequal to 10 watts. In such instances, (𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 ) and (𝑃𝑃𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 × 𝑇𝑇𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 )are replaced by (𝑃𝑃𝐴𝐴𝐴𝐴𝐴𝐴𝐴𝐴 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 ) and (𝑃𝑃𝐴𝐴𝐴𝐴𝐴𝐴𝐴𝐴 × 𝑇𝑇𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 ); Equation 1 remains
otherwise unchanged.

422
423
424
425
426

iv. Notebooks, Desktops, and Integrated Desktops with switchable graphics may not apply the
Discrete Graphics allowance, TECGRAPHICS, from Table 7 in Equation 2. However, for Desktop
and Integrated Desktop systems that provide automated Switchable Graphics enabled bydefault, an allowance equal to 7 watts (Desktop or Integrated Desktop) may be applied. This
capability is manufacturer-declared.

427
428
429
430

Note: The EPA has removed the Full Network Connectivity mode weightings and incentives, as
they are no longer present in the proposed updated mode weightings. Equation 1: TEC
Calculation (ETEC) for Desktop, Integrated Desktop,
and Notebook Computers

431
432
433
434
435
436
437
438
439
440
441
442
443

𝐸𝐸𝑇𝑇𝑇𝑇𝑇𝑇 =8760
× (𝑃𝑃𝑂𝑂𝑂𝑂𝑂𝑂 × 𝑇𝑇𝑂𝑂𝑂𝑂𝑂𝑂 + 𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 + 𝑃𝑃𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 × 𝑇𝑇𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼
1000+ 𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 )Where:

POFF = Measured power consumption in Off Mode (W);
PSLEEP = Measured power consumption in Sleep Mode (W);
PLONG_IDLE = Measured power consumption in Long Idle Mode(W);PSHORT_IDLE = Measured power consumption in Short Idle Mode
(W); and
TOFF, TSLEEP, TLONG_IDLE, and TSHORT_IDLE are mode weightings as
specified in Table 4 (for Desktops, Integrated Desktops) or
Table 5 (for Notebooks).

Table 4: Mode Weightings for Desktops and Integrated Desktop Computers
Mode
Weighting

Conventional

TOFF
TSLEEP
TLONG_IDLETSHORT_IDLE

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

15%
45%
10%
30%

Page 12 of 19

444
445

Table 5: Mode Weightings for Notebook Computers
Mode
Weighting

Conventional

TOFF
TSLEEP

10%60%

TLONG_IDLETSHORT_IDLE

10%
20%

446

Equation 2: ETEC_MAX Calculation for Desktop, Integrated Desktop, and Notebook Computers

447
448

ETEC_MAX = (TECBASE + TECMEMORY + TECGRAPHICS + TECSTORAGE + TECINT_DISPLAY + TECSWITCHABLE +TECMOBILEWORKSTATION + TEC>1G to < 10GLAN + TEC10GLAN)

449
450
451
452
453
454
455
456
457
458

Where:

TECBASE is the Base allowance specified in Table 6; and,
TECGRAPHICS is the discrete graphics allowance as specified inTable 7, with the exception of systems with integrated graphics,
which do not receive an allowance, or Desktops and Integrated
Desktops with switchable graphics enabled by default, which
receive an allowance through TECSWITCHABLE; and TECMEMORY , TECSTORAGE, TECINT_DISPLAY, TECSWITCHABLE,TECMOBILEWORKSTATION, TEC>1G to < 10GLAN and TEC10GLAN are
adder allowances as specified in Table 7.

459
460

Table 6: Base TEC (TECBASE) Allowances for Notebooks, Desktops, and Integrated Desktops
Category

BaseAllowance

Notebook

6.3

Integrated
Desktop

6.8

Desktop

32

461
462
463
464
465
466
467
468

Note: The EPA has worked with the Information Technology Industry Council (ITI) over the past couple
months to address several data quality issues and also significantly expand the size of the EPA data set
for Draft 2. These changes to the data set, in conjunction with several largely downward changes tofunctional adders in Table 7, have yielded new proposed base allowance values for notebooks, integrated
desktops and desktops in Table 6 above. The revised data set not only captures a much larger number of
non-certified models, but also a greater variety of configuration types for both certified and non-certified
models available on the market.

469
470

These base allowances, combined with the functional adder allowance changes below, result in productpass rates of roughly 25% in each category in Table 6 above.

471
472

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

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473
474

Table 7: Functional Adder Allowances for Desktop, Integrated Desktop, Thin Client, and Notebook
Computers

Function

Desktop

Integrated Desktop

Notebookiv

0.17 × GB

0.08 × GBv , vi29.4 ×tanh(0.008 × FB_BW – 0.03) + 11 +(0.011 × FB_BW)

14.7 ×tanh(0.008 × FB_BW – 0.03)+ 5.5 + (0.0055 × FB_BW)

7.0

N/A

3.5” HDD
2.5” HDD
Hybrid HDD/SSD

16.5
2.1
0.8

N/A

SSD (including
M.2 port solutions)

0.4

TECMEMORY (kWh)TECGRAPHICS (kWh)TECSWITCHABLE (kWh) vii
TECSTORAGE
(kWh)

viii

TECINT_DISPLAY
(kWh)

ix

A < 190[(3.43 × r) + (0.148 × A) +1.30] × (1 + EP)

190 ≤ A < 210[(3.43× r) + (0.018 × A) +26.1] × (1 + EP)

N/A
210 ≤ A < 315[(3.43 × r) + (0.078 × A) +13.2] × (1 + EP)

A ≥ 315[(3.43 × r) + (0.156 × A) 11.3] × (1 + EP)

8.76 ×0.20 × (1+EP) × (0.43×r +0.0263×A)

TECMOBILEWORKSTATION (kWh) x

N/A

7.1

TEC>1G to <10GLAN (kWh) xi

4.0

N/A

TEC10GLAN (kWh) xii

18.0

N/A

475
476
477
478
479

Note: As part of the effort to update the data set, ITI also provided feedback suggesting modifications toseveral existing functional adders to more closely align with current technology offerings. The EPA has
proposed to include these revised adders and has adjusted the base allowances in Table 6 to account for
the adder changes. In particular:

480
481

- The memory adder has been reintroduced in notebooks, and both memory adders have been simplified
and reduced in magnitude.

iv
v

TECMEMORY Adder: GB applies per GB installed in the system.
TECGRAPHICS Adder: Applies to only the first dGfx installed in the system, but not Switchable Graphics.
vi FB_BW: Is the display frame buffer bandwidth in gigabytes per second (GB/s). This is a manufacturer declaredparameter and should be calculated as follows: (Data Rate [Mhz] × Frame Buffer Data Width [bits]) / ( 8 × 1000 )vii TECSWITCHABLE Incentive: Applies to automated switching that is enabled by default in Desktops and Integrated
Desktops.
viii TECSTORAGE Adder: Applies once if system has an Additional Internal Storage device.
ix TECINT_DISPLAY Adder: EP is the Enhanced Performance Display allowance calculated per Equation 3;
r is the Screen resolution in megapixels; and A is viewable screen area in square inches. This adder may be
applied for each display if there are multiple displays in the system which are enabled as-shipped and in testing.
x TECMOBILEWORKSTATION Adder: Applies once if the system meets the full Mobile Workstation definition in Section 1.
xi TEC>1G to <10GLAN Adder: Applies once if system contains an Ethernet port with rated throughput greater than 1Gb/s
but less than 10 Gb/s.
xii TEC10GLAN Adder: Applies once if the system contains a 10 Gb/s Ethernet port.
ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 14 of 19

482- The switchable graphics adder for desktops and integrated desktops has been cut by more than half.

483
484

- The integrated display adder for notebooks has been revised to align with the new notebooks mode
weightings in Version 9, resulting in a smaller adder for these products.

485
486

- The mobile workstation adder has been increased in accordance with the changes to the dataset,
notebook base allowance and changes to functional adders in Table 7.

487
488

Equation 3: Calculation of Allowance for Enhanced-performance Integrated Displays

489

𝑬𝑬𝑬𝑬 = 𝟎𝟎. 𝟑𝟑 𝒇𝒇𝒇𝒇𝒇𝒇 𝒂𝒂𝒂𝒂𝒂𝒂 𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬𝑬 𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷𝑷 𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫𝑫

490
491
492
493

Note: The EPA has received stakeholder feedback recommending simplification of the Enhanced
Performance Display Adder to align with currently display technology trends and has revised Equation 3
accordingly based on this feedback.

494

3.6

495
496

3.6.1

Requirements for Slates/Tablets and Portable All-In-One Computers
Slates/Tablets and Portable All-In-One Computers shall follow all of the requirements for
Notebook Computers in Section 3.5 above, including calculations of the following:

497
498

i.

Calculated Typical Energy Consumption (ETEC), using Equation 1 with the Notebook
Computer Mode Weightings from Table 5.

499
500
501

ii.

Calculated Maximum Allowed Typical Energy Consumption (ETEC_MAX), using Equation 2 withthe appropriate base Notebook Computer allowance from Table 6, and applicable Notebook
Computer functional adder allowances from Table 7.

502

3.7

Requirements for Workstations

503
504
505

3.7.1

Weighted power consumption (PTEC) as calculated per Equation 4 shall be less than or equal tothe maximum weighted power consumption requirement (PTEC_MAX) as calculated per Equation 5.

506

Equation 4: PTEC Calculation for Workstations

507
508

PTEC = POFF×TOFF + PSLEEP×TSLEEP + PLONG_IDLE×TLONG_IDLE+ PSHORT_IDLE×TSHORT_IDLE

509
510
511
512
513
514
515
516
517

Where:

POFF = Measured power consumption in Off Mode (W);
PSLEEP = Measured power consumption in Sleep Mode (W);
PLONG_IDLE = Measured power consumption in Long Idle Mode(W);PSHORT_IDLE = Measured power consumption in Short Idle Mode
(W); and
TOFF, TSLEEP, TLONG_IDLE, and TSHORT_IDLE are mode weightings as
specified in Table 8.

518

Table 8: Mode Weightings for Workstations
TOFF

TSLEEP

TLONG_IDLETSHORT_IDLE

10%

35%

20%

35%

519

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 15 of 19

520

Equation 5: PTEC_MAX Calculation for Workstations

521

PTEC_MAX = 0.28×(PMAX + NHDD×5)

522
523
524
525
526
527

Where:

PMAX = Measured maximum power consumption (W)
NHDD = Number of installed hard disk drives (HDD) or solid-statedrives (SSD)

3.7.2

Active State Benchmark: To be ENERGY STAR certified, a Workstation must be submitted for
certification with the following information disclosed in full:

528
529

i.

LINPAC benchmark test results, compiler optimizations, and total energy consumed over theduration of the test; and

530
531

ii.

SPECviewperf benchmark test results, configuration options, total duration of the test, andtotal energy consumed over the duration of the test.

532
533
534
535

3.7.3

536

3.8

537
538
539

3.8.1

Desktop Workstations: Products marketed as workstations may be ENERGY STAR certified
under the Desktop requirements in Section 3.5 instead of the Workstation requirements in
Section 3.7, at the Partner’s option. EPA will identify Workstations certified as Desktops as“Desktops” in all ENERGY STAR marketing materials, on certified product lists, etc.

Requirements for Thin Clients
Calculated Typical Energy Consumption (ETEC) per Equation 1 shall be less than or equal to theMaximum TEC Requirement (ETEC_MAX), as calculated per Equation 6, subject to the following
requirements.

540

i.

Allowances can only be applied if the corresponding adders are enabled by default.

541

ii.

Thin Clients shall utilize the mode weightings in Table 9 when calculating ETEC.

542
543
544
545

iii. For Thin Clients that lack a discrete System Sleep Mode, Long Idle State power (PLONG_IDLE)
may be used in place of Sleep Mode Power (PSLEEP) in Equation 1 so long as the systemmeets the Thin Client TEC allowance. In such instances, (𝑃𝑃𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 ), is replaced by(𝑃𝑃𝐿𝐿𝐿𝐿𝐿𝐿𝐿𝐿_𝐼𝐼𝐼𝐼𝐼𝐼𝐼𝐼 × 𝑇𝑇𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆𝑆 ); Equation 1 remains otherwise unchanged.

546
547

Table 9: Mode Weightings for Thin ClientsTOFF

TSLEEP

TLONG_IDLETSHORT_IDLE

45%

5%

15%

35%

548

Equation 10: Calculation of ETEC_MAX for Thin Clients

549

ETEC_MAX = TECBASE + TECGRAPHICS + TECWOL + TECINT_DISPLAY

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 16 of 19

550

Where:

551
552
553
554
555
556
557
558








TECBASE is the Base Allowance specified in Table
Table 11;TECGRAPHICS is the Discrete Graphics allowance specified inTable 11 if applicable;
TECWOL is the Wake-on-LAN allowance specified in Table
Table 11 if applicable;
TECINT_DISPLAY is the Integrated Display allowance for Integrated
Desktops specified in Table 7 if applicable; andTable 11: Adder Allowances for Thin Clients

559

Adder
TECBASETECGRAPHICSTECWOL

Allowance
(kWh)
31
36
2

560
561
562
563
564

Note: Products intended for sale in the US market are subject to minimum toxicity and recyclability
requirements. Please see ENERGY STAR® Program Requirements for Computers: Partner Commitments
for details.

565

4 TESTING

566

4.1

567
568

4.1.1

Test Methods
When testing Computer products, the test methods identified in Table 12 shall be used todetermine ENERGY STAR certification.
Table 12: Test Methods for ENERGY STAR Certification

569

Product Type orComponent
All

Test Method
ENERGY STAR Test Method for Computers, Rev. May 2022

570
571

Note: The EPA has updated the test method reference to the latest version of the ENERGY STAR Test
Method for Computers – May 2022.

572

4.2

573

4.2.1

Number of Units Required for Testing
Representative Models shall be selected for testing per the following requirements:

574
575
576

i.

For certification of an individual product configuration, the unique configuration that is
intended to be marketed and labeled as ENERGY STAR is considered the Representative
Model.

577
578
579
580
581
582
583
584

ii.

For certification of a Product Family of all product types, with the exception of Workstations,product configurations that represent the worst-case power consumption for each productcategory within the family are considered Representative Models. When submitting Product
Families, manufacturers continue to be held accountable for any efficiency claims madeabout their products, including those not tested or for which data were not reported. This
includes ensuring that all models shipped as ENERGY STAR certified within the productfamily maintain the same power management settings when testing the Representative
Model(s).

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 17 of 19

585
586
587
588
589
590
591
592
593
594
595
596
597
598
599

4.2.2

Note: EPA has removed the language which was previously labeled subsection 4.2.1.iii from
Version 8 which covered systems that met multiple performance categories and how thoseshould be tested and certified, as EPA has proposed the removal of performance categories inthe Version 9 specification. For certification of a Product Family of Workstations under theWorkstation or Desktop product type, the product configuration that represents the worst-casepower consumption with a single GPU within the family is considered the Representative Model.

600

4.2.3

A single unit of each Representative Model shall be selected for testing.

601
602
603
604
605
606
607
608

4.2.4

All units/configurations for which a Partner is seeking ENERGY STAR certification, must meet the
ENERGY STAR requirements. However, if a Partner wishes to certify configurations of a model
for which non-ENERGY STAR certified alternative configurations exist, the Partner must assign
the certified configurations an identifier in the model name/number that is unique to ENERGYSTAR certified configurations. This identifier must be used consistently in association with thecertified configurations in marketing/sales materials and on the ENERGY STAR list of certified
products (e.g. model A1234 for baseline configurations and A1234-ES for ENERGY STAR
certified configurations).

Note: Workstations that meet ENERGY STAR requirements with a single graphics device may
also have a configuration with more than one graphics device be ENERGY STAR certified,provided the additional hardware configuration is identical with the exception of the additionalgraphics device(s). The use of multiple graphics includes, but is not limited to, driving multiple
displays and ganging for high performance, multi-GPU configurations (e.g. ATI Crossfire, NVIDIA
SLI). In such cases, and until such time as SPECviewperf® supports multiple graphics threads,
manufacturers may submit the test data for the workstation with the single graphics device forboth configurations without retesting the system

Note: There may be cases—as described in the paragraph above—where not allunits/configurations will meet ENERGY STAR requirements. If so, the worst-case configuration
for test will be the worst-case certified configuration, and not one of the presumably even higherenergy consuming non-certified configurations.

609
610
611
612
613

4.3

614
615

4.3.1

International Market Certification
Products shall be tested for certification at the relevant input voltage/frequency combination foreach market in which they will be sold and promoted as ENERGY STAR.
Note: Partner must ensure that all configurations certified as ENERGY STAR continue to meetthe certification criteria through subsequent firmware, software, or other changes to the certified
product.

616
617
618
619

4.4

620
621

4.4.1

Customer Software and Management Service Pre-Provisioning
If a manufacturing Partner is hired by a customer to load a custom image on an ENERGY STAR
certified computer, the Partner shall take the following steps:

622
623

i.

Inform the customer that their product may not meet ENERGY STAR with the custom image.
A sample notification letter is available on the ENERGY STAR Web site.

624

ii.

Encourage the customer to test the product for ENERGY STAR compliance.

625
626
627

iii. Encourage the customer, should the product no longer meet ENERGY STAR, to make use of
EPA's free technical assistance that can assist with Power Management performance, which
can be found at www.energystar.gov/fedofficeenergy.

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

Page 18 of 19

628

5 USER INTERFACE

629
630
631

5.1.1

632

6 EFFECTIVE DATE

633
634
635
636

6.1.1

637
638

Note: The EPA intends to finalize the Version 9 specification in late Q3 or early Q4 of 2024 with a TBD
effective date sometime in early Q2 2025, nine months following the finalization of the specification.

639
640
641
642
643

6.1.2

644

7 CONSIDERATIONS FOR FUTURE REVISIONS

645
646
647

7.1.1

Manufacturers are encouraged to design products in accordance with the user interface standard
IEEE 1621: Standard for User Interface Elements in Power Control of Electronic Devices
Employed in Office/Consumer Environments. For details, see http://eetd.LBL.gov/Controls.

Effective Date: The Version 9 ENERGY STAR Computers specification shall take effect on TBD.
To be ENERGY STAR certified, a product model shall meet the ENERGY STAR specification in
effect on its date of manufacture. The date of manufacture is specific to each unit and is the dateon which a unit is considered to be completely assembled.

Future Specification Revisions: EPA reserves the right to change this specification should
technological and/or market changes affect its usefulness to consumers, industry, or theenvironment. In keeping with current policy, revisions to the specification are arrived at throughstakeholder discussions. In the event of a specification revision, please note that the ENERGYSTAR certification is not automatically granted for the life of a product model.

Active Mode: EPA will continue to monitor developments in test methodology that addresses
active mode, where the computer is actively performing tasks, and assess whether thesemeasurements warrant inclusion into the ENERGY STAR Computers specification.

ENERGY STAR Program Requirements for Computers – Eligibility Criteria

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