Which size of powersupply do i need?

[Bunionlad]

currently im using a very low quality max output 600 watt power supply, and i need to get another ( as im having problems with this one) one but i was wondering would a 500-550w of a better quality e.g corsair work for me? (and to save me money of cource)

power supply currently being used : http://www.google.co.uk/products/catalog?q=ace+600+w+power+supply&hl=en&bav=on.2,or.r_gc.r_pw.r_qf.&bvm=bv.41248874,d.d2k&biw=1745&bih=860&um=1&ie=UTF-8&cid=18179362427978575992&sa=X&ei=dBEAUcebAaWd0QXXwIH4DA&ved=0CE4Q8wIwAA



my computer is using
os :Windows 7 64 bit
Proccessor : Processor AMD Phenom(tm) II X4 965 Processor, 3400 Mhz
motherboard: asus m477t
graphic card: ati radeon 5770

Thanks for the help!

 

[Z1NONLY]

Yes. 500w from a good name PSU will be more than enough.

 

[toyftw]

currently im using a very low quality max output 600 watt power supply, and i need to get another ( as im having problems with this one) one but i was wondering would a 500-550w of a better quality e.g corsair work for me? (and to save me money of cource)

power supply currently being used : http://www.google.co.uk/products/catalog?q=ace+600+w+power+supply&hl=en&bav=on.2,or.r_gc.r_pw.r_qf.&bvm=bv.41248874,d.d2k&biw=1745&bih=860&um=1&ie=UTF-8&cid=18179362427978575992&sa=X&ei=dBEAUcebAaWd0QXXwIH4DA&ved=0CE4Q8wIwAA



my computer is using
os :Windows 7 64 bit
Proccessor : Processor AMD Phenom(tm) II X4 965 Processor, 3400 Mhz
motherboard: asus m477t
graphic card: ati radeon 5770

Thanks for the help!

Hi - Yes 500-550w(quality brand) is fine, in fact realdardtech suggests
you only need 430w for a sys with a 5770.

Personally, I'd get the 550w if it was within my budget as you
would most of the time be in the "sweet spot" of the PSU's
efficiency range (40-60% of max output)

Tom