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Windows 7: Which PSU is better ?

20 Jul 2012   #1
StalkeR

Windows 7 Ultimate SP1 / Windows 10 Pro x64
 
 
Which PSU is better ?

Hello people, I have 2 400W PSU's at home. One that I'm using it ATM, and another that is staying home.

So how can I see which one is more powerfull or better ?

If this picture means something to you'll, here is.

Which PSU is better ?-img_20120630_153529.jpg




My System SpecsSystem Spec
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20 Jul 2012   #2
ignatzatsonic

Microsoft Community Contributor Award Recipient

Windows 7 Home Premium SP1, 64-bit
 
 

As I understand it, most current PC components take power from the 12 volt rail and this PSU appears to have little power on that rail--only about 132 watts (11 amps x 12 volts).

It can supply quite a lot of power on the 5 volt rail, but that isn't where it's likely to be needed.

And I don't know the brand or quality, so it may be horrible or fantastic, regardless of power output.

So, not impressive.

What about the other one?
My System SpecsSystem Spec
20 Jul 2012   #3
bobkn

Windows 7 Pro X64 SP1
 
 

My opinion:

11 amps on the +12V rail is an indication of a poor "400W" PSU.

For example, this one:

http://www.antec.com/product.php?id=2244&fid=372

(Antec Neo Eco 400C) is rated at 30A at +12V. It's not a super high end unit.

There are two considerations about PSUs. One is whether one can supply enough current to run your system. The second one is reliability. If a poor PSU fails, it can destroy other components (motherboard, CPU, RAM graphics card). A cheap PSU could become very expensive.
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 Which PSU is better ?




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