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What PSU Should I get?

Last response: in Components
August 2, 2013 8:15:08 AM

Hi there!
I just bought a cheap Acer computer for $480. It has an i5 3330, 6GB RAM, 1 TB HDD, and a GT 630 2GB. I want to upgrade the GPU. If I get an AMD 7790, but keep everything else the same, what power supply should I get?

Thanks for any suggestions :D 

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a c 126 ) Power supply
August 2, 2013 8:20:33 AM

Your 7790 will need a 430w psu with one 6 pin connector.
Newegg has a Corsair CX430 on sale for $20 after rebate.
Not a bad psu. But, I think I would go stronger to allow you to upgrade the graphics card in the future. 500w or more perhaps.
Look for seasonic, corsair, antec, xfx, pc p&c for quality units; do not buy a low quality psu.
August 2, 2013 8:30:13 AM

Thanks for the quick responses!
a c 105 ) Power supply
August 2, 2013 8:34:31 AM

If you buy a Corsair CX, make SURE it's one of the "M" models, one of the modular ones. Although they are all built by CWT, the non-modular ones use some inferior Samxon capacitors that don't like heat and are known for early failure. Fine in light-duty office builds, I wouldn't put on in a gamer.
The XFX linked by SR-71 would be a nice choice. Others to consider are the 450W Rosewill Capstone and the 380W Antec Earthwatts. All would do.

Best solution

a c 1427 ) Power supply
August 2, 2013 8:34:35 AM

No but this is:

PCPartPicker part list / Price breakdown by merchant / Benchmarks

Power Supply: Corsair CX 500W 80 PLUS Bronze Certified ATX12V Power Supply ($49.99 @ Microcenter)
Total: $49.99
(Prices include shipping, taxes, and discounts when available.)
(Generated by PCPartPicker 2013-08-02 11:35 EDT-0400)

5.9"(W) x 3.4"(H) x 5.5"(L) < This is the standard OEM spec , the Acer needs this

a c 1427 ) Power supply
August 2, 2013 9:18:59 AM

That is a fair at best , they don't make good PSU's.

Get one of the 2 I linked, very decent units.
a c 105 ) Power supply
August 2, 2013 9:31:44 AM

Hmmm, is that EVGA not built by SuperFlower? That would make it decent.
A $45 380W Antec Earthwatts would be another suitable PSU for that build.

a c 126 ) Power supply
August 2, 2013 9:37:07 AM

Here is one list of psu's sorted by quality tiers.
It is worth while to spend a bit more on a quality unit.
Also, buying a 20% stronger psu than you need will allow the unti to run more efficiently and be quieter. It gives you some leeway for a future graphics card change.
a c 105 ) Power supply
August 2, 2013 9:42:45 AM

While not bad in theory, in practice that list is ancient and therefor obsolete.
A much more current, maintained listing may be found at
He cites competent technical reviews to back up his recommendations as well. Similarly, he's got a Lemon List there too, indicating [some of] the junk to avoid.
a c 1427 ) Power supply
August 2, 2013 9:43:43 AM

It was updated on 4/2013.

Last Update of this list was on 04/18/2013 < Bottom of List
a c 105 ) Power supply
August 2, 2013 9:59:06 AM

Maybe Proximon will poke him with a sharp stick for another update...
August 5, 2013 6:55:17 AM

Thanks for all the help guys :D