Is my PSU big enough?

Hi All,

Recently I built the following system, some parts were from my previous build namely HDD, Case and PSU.

New Parts:
Intel Core i7 3930K
G.Skill 16GB (4x4GB) DDR3 Kit, PC-12800 (1600Mhz), RipjawsZ, 9-9-9-24-2N
Asus Rampage IV Formula, X79
Gigabyte 7970 3GB x 2 (Crossfired) Cat 12.8
3 x 23" Samsung LCD monitors (5760x1080)

Existing Parts:
2 x WD 500GB HDD
1 x OCZ Agility 3 120GB
1 x OCZ Agility 3 240GB
Thermal Take tough power 850W
Raven II case

OS Win 7 64bit Pro

Now the the issue I have is the system locks during gaming, usually after about 15 min or so. I can't even use the reset boutton on the case, I have to physically cut the power.

With general apps like Firefox for example I'm getting corruptions in the text and then a black viewing area, with IE9 I'm only getting corrupted text.

With 2 HDDs, 2 SSDs, 2 7970s and 4 120 fans running, do I need beefier PSU?
3 answers Last reply
More about enough
  1. Unless your PSU is faulty it is enough.

    What are the temps while playing games?
  2. Although I prefer single rail PSUs, there is nothing wrong with that PSU powering a pair of 7970s. You should have room to spare... depending on what other power hungry components you have in the system.
  3. I've fixed the issue by rolling back the video card drivers to Cat 12.4

    Strange that I had issues with 12.8 where so many others don't. Need look into this more.
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