Hello, I am somewhat confused about how power supplies work. I'm right in thinking that a "500W PSU" can give a maximum amount of 500 watts to a component, and gives the others the appropriate amount? or does the 500W mean that if you add up the amount that each part of the pc is using and it reaches 500 or less, then a 500W power supply is ok for the system?
I am thinking of getting the amd phenom ii x4 965 Black Edition and overclocking it, although this is my first build.
If anyone can help with my question that would be great
Hi - The wattage rating of the PSU is typically the total power output
(all rails)of the unit.
Better quality bramds are conservative in their ratings,
and their units sometimes exceed the publ ratings.
On the other hand there are many poor quality inits from
many brands that don't deliver the publ specs, sometimes by
an alarming difference.
The key when you shop for a PSU is to 1st select a quality brand.
Quality brands: Seasonic, XFX, PC P&Coolong, Rosewill Capstone series,
most Corsair's, most Antec's, Enermax, & some others.