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Can my PSU take crossfire 7970?

post #1 of 38
Thread Starter 
Can my old Seasonnic 600W run crossfure 7970 with Xeon e3-1245v2?
I would run them at 1.1v when mining and return to normal when gamming.

post #2 of 38
It might run it at stock clocks, big maybe. But I'd guess you'll have shut downs during games even then.
    
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post #3 of 38
Quote:
Originally Posted by sterob View Post

Can my old Seasonnic 600W run crossfure 7970 with Xeon e3-1245v2?
I would run them at 1.1v when mining and return to normal when gamming.


Stock Clocks maybe, OC, it might handle it also, but usually when you double up on top Tier cards, short of it being 670's, you should go 700W+.
 
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post #4 of 38
At stock just barely with overclocks then no
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post #5 of 38
Guru3D recommends minimum 750 psu. I run mine on an 850. http://www.guru3d.com/articles_pages/amd_radeon_hd_7970_review,8.html
post #6 of 38
Thread Starter 
i have been running 4x 7950 with 850W Corsair/Seasonic PSU so far nothing kaput yet. But this seasonic m12 600W is kind of old so i am not sure if it have enough a to run crossfire
post #7 of 38
Even more the reason to get a new, more powerful PSU. On my old rig i have for a few years, the PSU was the first to go. If you just purchased a pair of 7970's, i wont trust an old PSU to run them. My 2 cents.
post #8 of 38
Better get something new and bigger 600 watts is near the limit if you start overclocking it will hit the limit
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post #9 of 38
Quote:
Originally Posted by sterob View Post

Can my old Seasonnic 600W run crossfure 7970 with Xeon e3-1245v2?
I would run them at 1.1v when mining and return to normal when gamming.


Which 7970s do you have and what clocks @ 1.1v ? most of them run stock @ 1.175v (and consume less than 240w) ......

But Yes you can with both scenarios above.
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post #10 of 38
Quote:
Originally Posted by keikei View Post

Guru3D recommends minimum 750 psu. I run mine on an 850. http://www.guru3d.com/articles_pages/amd_radeon_hd_7970_review,8.html

FYI it's always safe to take Guru3D's recommendations and take 100W off. If they say 750W, then 650W is fine tongue.gif
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