Power Supply Efficiency For Energy Regulations - Energy Star* And Cec (California Energy Commission) Pc Computers With High Expandability Score - Recommended; Table 4-15: Efficiency Versus Load For Energy Star; Table 4-16: Efficiency Versus Load For Cec Pc Computers With High Expandability Computers - Intel ATX 3.0 Design Manual

Electrical
4.5.9 Power Supply Efficiency for Energy Regulations - ENERGY
STAR* and CEC (California Energy Commission) PC
Computers with High Expandability Score -
RECOMMENDED
The efficiency of the power supply should be tested at nominal input voltage of 115
VAC input and 230 VAC input, under the load conditions defined in the form factor
specific sections, and under the temperature and operating conditions defined in
Chapter
typical (50%) loaded systems, and light (20%) loaded systems. For systems being
sold into the state of California that meet the High Expandability Computer definition
(details at the referenced CEC website below) are required to meet the efficiency
target list in
Expandability Computers*
Visit ENERGY STAR* Computers Ver.8 (ES v8) website for more details:
• https://www.energystar.gov/products/spec/computers_version_8_0_pd
Visit CEC* website for more details:
https://www.energy.ca.gov/rules-and-regulations/appliance-efficiency-regulations-
•
title-20
https://energycodeace.com/content/reference-ace-t20-tool
•
Computers..."
Note: check ENERGY STAR* and CEC website for the latest specification update.

Table 4-15: Efficiency versus Load for ENERGY STAR*

RECOMMENDED
Minimum Efficiency
RECOMMENDED
Minimum Efficiency
Table 4-16: Efficiency versus Load for CEC PC Computers with High Expandability
Computers*
REQUIRED Minimum Efficiency for 115V
REQUIRED Minimum Efficiency for 230V
336521
7. The loading condition for testing efficiency represents fully loaded systems,
:
Table 4-16 Efficiency
.
or
Full
Load
Loading
(100%)
82%
87%
Loading
PSU
PSU
versus Load for CEC PC Computers with High
Typical Light
Load Load
(50%) (20%)
85% 82%
90% 87%
Full Typical
Load Load
(100%) (50%)
87%
88%
then select section "(v)
PFC @
50% Remarks
load
ES v8 for
≥0.9
500W and below
ES v8 for
≥0.9
above 500W
Light
PFC @ 50%
Load
(20%)
90% 87%
92% 88%
load
≥0.9
≥0.9
45