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Will my old PSU power my upgrade?

Last response: in Components
a b ) Power supply
July 22, 2010 3:59:31 PM

PSU is a Thermaltake Purepower 480W from my old build.

Thinking of upgrading to the following:
CPU: Athlon II X4 635 2.9GHz
RAM: 2x2GB OCZ DDR3 1333MHz
GPU:ATi 4650 1GB or maybe 512MB

and some (non crossfire) MOBO i've not yet decided on. Definately wont be OC'ing. So will the PSU be up to it?


More about : psu power upgrade

a c 289 ) Power supply
July 22, 2010 4:04:07 PM

It should be fine, the 4650 is very low power
a b ) Power supply
July 22, 2010 6:12:52 PM

Go with this motherboard:

Also, if you intend to game at all, I recommend either a 4670 or better yet a 5670, both still low-power. Unless you play really old games (6+ years old), or really don't want to spare the extra cost.

If you don't game, there is no point in getting a graphics card since the integrated graphics will be more than enough. HD movies are fine with the integrated.

That said, there are some other things that are GPU accelerated. If you are getting the GPU because you use one of those things, and know the 4650 is good, then go for it.

All that is a bit off topic though. To answer your question, yes, your PSU is enough to power those components.
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July 28, 2010 9:04:36 AM

Thanks guys, but just to be sure, I went and got the amp ratings from online:

+12V: 18A
+5V: 40A
+3.3V: 30A
-5V: 0.3A
-12V: 0.8A
+5VSB: 2A

Is the 18A on the 12V sufficient?

a c 289 ) Power supply
July 28, 2010 3:57:46 PM

damn thats a low power PSU, its a bit closer than i expected but you are still good. You might want to pick up a corsair 400CX off newegg for $30 after MIR, it would give you quite a bit more power to work with, that thermaltake really shouldnt be rated as a 480W unit.