Division A Power supply efficiency requirements

Computers must meet the requirements below to qualify as ENERGY STAR. The Version 5.0 effective date is covered in Section 5 of this specification.

1. (a)

   Computers Using an Internal Power Supply: 85 % minimum efficiency at 50 % of rated output and 82 % minimum efficiency at 20 % and 100 % of rated output, with Power Factor ≥ 0.9 at 100 % of rated output.

2. (b)

   Computers Using an External Power Supply: External Power Supplies sold with ENERGY STAR computers must be ENERGY STAR qualified or meet the no-load and active mode efficiency levels laid down in the ENERGY STAR Program Requirements for Single Voltage External AC-AC and AC-DC Power Supplies, Version 2.0. The ENERGY STAR specification and qualified product list can be found at www.energystar.gov/powersupplies. Note: This performance requirement also applies to multiple voltage output external power supplies as tested in accordance with the Internal Power Supply test method referenced in Section 4, below.