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4870 crossfire power requirements

R

runLoganrun

Gawd
Joined
Jul 4, 2005
Messages
601
i'm wondering what i need to have to run crossfire with 2 x 4870, 512. dfi says that my board is something like 350, i didn't think the mobo used that much power, then my chip is 65w, plus some extra prob for overclocking. i think that the 4870 is 150W, if i remember right, so that's ~715W, not leaving much for the 3 hard drives in that case. But, idk, the 1K jump is quite a bit, dollar wise, from the 750's.

So, am i adding this up right? is my 750 single rail going to cut it for 4870 crossfire? seems like it should....

thanks a lot,
rlr
 
According to the Corsair PSU Finder, the Corsair 620HX with its 50A on the +12V rail is a good choice for HD4870 CF setup. So your Corsair 750TX is just fine.
 
Your board certainly does NOT use 350w.
I'd put your power usage around 450-550w, so your totally fine with your current PSU.
 
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