What options in computer power supplies can save on energy, heat output and money?
Over $100 per computer can be saved per year with simple computer choices.
Fill in the values for your computer components in the first table.
Press the Get Results button
See the computer power consumption and options in the second table.
See how the calculator shows that efficiency choices can make a difference
CPM is a way to save energy consumption of a computer using only configuration changes. Suggestions for energy saving settings are:
Up to an extra 38% in electrical consumption and running costs can be saved with the above settings.
|Specification Level||Efficiency at 50% load||Minimum Power Factor|
|80 PLUS Bronze level||87%||0.9|
|80 PLUS Silver level||89%||0.9|
|80 PLUS Gold level||90%||0.9|
|80 PLUS Platinum level||92%||0.9|
Efficiency is tested at 10%, 20%, 50% and 100%. Efficiency from 20% to 100% load must be over 80%.
Check your motherboard manual for minimum power supply rating for safety. Consider future expansions in you power supply rating calculations.
Server power supply EPS specifications can go up to 800 Watts
Blade server chassis power supplies support multiple servers. Each power supply ratings can be 2200 Watts each. Multiple power supplies are used for redundancy.
The computer power supply rating is higher that the power use maximum to cover the initial power use surge at start up.
Other factors include running computers in non air conditioned rooms and poor ventilation areas.
80 Plus power supplies generate less heat and create less heat related issues.
Computer processors now come in many varieties.
Some processors come in multiple classes with different power consumption levels.
Often newer processors with smaller transistor sizes use less energy with the same or better performance levels.