PSU's how powerful do you need?? 5

[neil77]

I was just looking into getting myself a quiet PSU, and there is a huge price difference between 300 and 400+W units, I know my system now will run on a 300W because that's what is in there right now.... is there any easy way to determine how much power your hardware needs? I dont want to buy a PSU then discover when I upgrade my CPU then I'll need to buy yet another PSU to cope.

Do components always show how much power they use up?

 

[kestrel1]

try this link:

http://www.jscustompcs.com/power_supply/

You should be able to calculate how large a PSU you need.
Generaly a 300w psu is good enough for most systems, but if you want to upgrade to more hard drives, CD/DVD RW's etc the larger the better.

 

[pmonett]

Great link. I give a star for that.