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How do I figure out my power supply needs?

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#1
How do I figure out what power supply I need?

For example, if I have the following setup, is a 500W power supply enough?

Geforce 8800 GS 384MB
Single Core AMD 3200
3GB Memory DDR2

What about if I overclock my video card or upgrade the processor to a dual or quad. What do I look at to make sure my power supply is enough?
 

cdawall

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#2
you should be fine on a 500w for up to an oc'd dual and a stock quad (even with the graphics oc'd) but if you want to oc a quad 650+
 

panchoman

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#3
thats fine :toast:
 
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#4
Should be, but it depends on the amperage. How many amps are on the 12v rail(s)? :)
 

MKmods

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#5
How do I figure out what power supply I need?

For example, if I have the following setup, is a 500W power supply enough?

Geforce 8800 GS 384MB
Single Core AMD 3200
3GB Memory DDR2

What about if I overclock my video card or upgrade the processor to a dual or quad. What do I look at to make sure my power supply is enough?
It really matters which PS you use.
A good 300 watt one will power that comp
A bad 600watt one will fail.