is my PSU ok for xfire?

millsd44 · 3 Mar 2013 at 11:16

Hi, I'm wondering whether my PSU will be ok to crossfire or will I need to upgrade first? I know the PSU states it can do crossfire but with all the other stuff I have going on, will it be enough power?

My rig:

Corsair HX750 80+ gold

3570k @ 4.2ghz (stock voltage)
Gigabyte UD5H
8gb 1600mhz Corsair (1.35v)
Windforce 3x 7950 @ 1205/1600mhz (1244/1631mv)
120gb SSD
1TB HDD
2TB HDD
DVDRW drive
4pin temperature controlled 12cm CPU fan
4 12cm LED fans, 1 14cm fan (all on fan controller powered by molex)

If I do get crossfire, I probably won't be overclocking right away. Thanks in advance

teenwolf · 3 Mar 2013 at 11:20

psu is plenty.

Dom86 · 3 Mar 2013 at 11:22

I would say 750w would be the minimum you would want to crossfire 7950's. According to AMD you would need 700w and "The power supply should also have a combined +12 Volt continuous current rating of 46 Amps or greater"

millsd44 · 3 Mar 2013 at 11:31

lol, slightly contradicting replies there..but thanks

according to the corsair website, mine has a "Single +12V rail design providing up to 62A"

also, I have the silver version, not gold as I put before (I have the non + one that seems to have crept onto the store!)

Something Else · 3 Mar 2013 at 11:32

you will be fine with that

trickynickyuk · 3 Mar 2013 at 13:01

psu will be fine

RJC · 3 Mar 2013 at 13:21

Psu is ample.

areksnumbr1sxylady · 3 Mar 2013 at 16:47

as previously mentioned, that PSU will handle it well... only issue might be noise due to load.