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Old 4th November 2008
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vermaden vermaden is offline
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Quote:
Originally Posted by Broodjegehaktmetmayo
Thank you in advance
You are welcome mate.

About Intel chipsets power usage here is the stats:


Abou AMD ones 780G are also very eco, they use about 7W of power.

As for power supplies, the most important part while buying them is their efficency, the stat that is almost always omitted (guess why) most of them have very poor efficency. Many people does not understand efficency of power supplies, it works like that.

EXAMPLE 1:
power supply efficency: 85%
computer power draw: 100W
power needed to run this computer: 118W
Code:
x * 0.85 = 100W
x = 100W / 0.85
x ~ 118W
EXAMPLE 2:
power supply efficency: 55%
computer power draw: 100W
power needed to run this computer: 182W
Code:
x * 0.55 = 100W
x = 100W / 0.55
x ~ 182W
So if your computer uses 100W then using power supply with 85% efficency you will really draw abou 118W for this box while 182W using 55% efficent power supply.

Another part of good power supply is amount of A (ampers) that can be provided for each line, and keeping the ATX standart voltages at high load, but if you buy a power supply that has 80+ efficency, you can be sure that A and voltages will be ok.

There is a site that aggregates all 80% and more efficent power supplies, you can use it as a guide which ones are good: http://80plus.com
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