Need help finding reasonable replacement PSU

[vulturepro]

im trying to upgrade my graphics card from a gt 430 to a hd 7770 but i realized my PSU doesnt meet the needs of the hd 7770 so i am looking for a reasonable cheap replacement PSU for the one that came in my case

Specs:
CPU: Amd A4-5300
Ram: Crucial Ballistix ram 8gb (2x4gb)
HD: 500gb seagate barracuda 7200rpm
MOBO: Asus F2A55-m Lk Plus
Case (w/PSU): Sentey CS1-1399
PSU: 450w BCP450-OC

I was looking at something like a Dynex 520w PSU, which i know are kinda crap, but they seriously cant be worse then the one currently in it, just so i can run the card until i get a decent PSU (something like a corsair cx600)

Im kind of lost but i know that my current PSU does not have the correct amperage to support a hd 7770

 

[johnsonjohnson]

Hi. The Corsair CX430 will be sufficient for your system and it's cheaper and better than that Dynex. Newegg has it for $20 after promo code and rebate right now: http://www.newegg.com/Product/Product.aspx?Item=N82E16817139026

 

[toyftw]

im trying to upgrade my graphics card from a gt 430 to a hd 7770 but i realized my PSU doesnt meet the needs of the hd 7770 so i am looking for a reasonable cheap replacement PSU for the one that came in my case

Specs:
CPU: Amd A4-5300
Ram: Crucial Ballistix ram 8gb (2x4gb)
HD: 500gb seagate barracuda 7200rpm
MOBO: Asus F2A55-m Lk Plus
Case (w/PSU): Sentey CS1-1399
PSU: 450w BCP450-OC

I was looking at something like a Dynex 520w PSU, which i know are kinda crap, but they seriously cant be worse then the one currently in it, just so i can run the card until i get a decent PSU (something like a corsair cx600)

Im kind of lost but i know that my current PSU does not have the correct amperage to support a hd 7770

JJ is right on, cx430(will run a sys with one 7770) at that price is an ex value.

 

[mace200200]

I always recommend these for low budgets, the Corsair is fine too.

http://www.newegg.com/Product/Product.aspx?Item=N82E16817371045

Then, you should also look at a 650Ti for an extra $20-30. It'll still work with either of the PSU's.
http://www.anandtech.com/bench/Product/536?vs=680
http://www.newegg.com/Product/Product.aspx?Item=N82E16814127710