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650W enough for crossfire 5870s?

post #1 of 4
Thread Starter 
I would like to put another 5870 in my rig, however I don't know whether my PSU can handle it. AMD recommends a 600W for 5870s in crossfire, but I dont know if I should trust that.

This is the exact powersupply that I am using:
http://www.newegg.com/Product/Produc...82E16817151028

What do you guys think?
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Scream Machine
(9 items)
 
  
CPUMotherboardGraphicsRAM
i7-4770K Gigabyte Z87X-UD3H EVGA GTX 780 16GB DDR3 
Hard DriveCoolingOSMonitor
256GB Samsung 840 Pro Kraken X60 Windows 7 Shimian 2560x1440 
Case
Phantom 630 
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post #2 of 4
Quite fine, go for it! You can always trust the manufacturer requirements. In fact they always recommend more than you need if you have a good quality PSU. If AMD recommends 600W, then 600W will do great, and obviously so will your 650W.
post #3 of 4
Yes it should be fine. I have a 750W for crossfire 6870s but I was told 650 would have been fine too.
    
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CPUMotherboardGraphicsRAM
i7 3770k Asus Z77 sabertooth HD Radeon 6870 CF Corsair Vengeance Blue 16gb 
Power
Corsair 750W 
  hide details  
Reply
post #4 of 4
Yes, 650W can run two 5870.
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