Seasonic G650 enough for crossfire?

W

wyqtor

Limp Gawd
Joined
Dec 30, 2011
Messages
498
I'm thinking about buying another 7950 (or R9 280) for my system and I wonder if the Seasonic G650 I have is enough long term. I used one of those PSU calculators and it would seem to be enough if not for the capacitor aging (?) pushing things at or over the limit.

Specs in my sig, The 7950 I have is at 1.25 V overclocked, i7-4770K is using up some 1.27 V with adaptive spiking to 1.36 - 1.37 under load. I also have 2 7200 rpm HDDs + 1 5900 WD HDD (games are on the Samsung SSD though, and I only use one of the 7200 rpm HDDs for downloading while gaming).
 
I wouldn't do it, just because power supply issues are hard to troubleshoot.

Get a new higher wattage supply and forget about it. If you are worried about cost, re-coop some on your old one by selling it in the BST forum.
 
I would also go for a higher wattage, you might be fine though, i stressed a SLI GTX580 + 2600K with prime95 + furmark and reached 640W, but this would never be meet under heavy gaming. That said.... the G series is a wonderful PSU, but the heating it up becomes a very noisy PSU, thus i would probably opt for a higher wattage PSU, probably something like Seasonic SS-850XP2 or Kingwin Platinum LZP850.
 
You'll be fine.

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http://www.hardocp.com/article/2012/01/30/amd_radeon_hd_7950_video_card_review/14#.UnLeLPk_t-o

Overclocked isn't going to surpass 650W at the wall, much less the output of a PSU.
 
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