Miners Freezing

[pstudart]

I have three rigs with the ASRock motherboards and 3 7970s , They average about 48 hours of mining before they freeze up and I have to reboot them. Its just a frozen screen, I cant figure out what is going on. I have tried differant config settings turning of services and everything else I can think of. I run windows 7 and cgminer.

Any thoughts on what could be causing this? below is the exact items I use

Thanks


My Power Supply
http://www.newegg.com/Product/Product.aspx?Item=N82E16817139014

Hard Drive
http://www.newegg.com/Product/Product.aspx?Item=N82E16822152226


3 GPU's per rig
http://www.newegg.com/Product/Product.aspx?Item=N82E16814125439


Motherboard
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157287

Also I have 8 gigs of RAM

 

[1714972104]

1714972104

[1714972104]

1714972104

[1714972104]

1714972104

[1714972104]

1714972104

[1714972104]

1714972104

[frojoe]

Roughly having same issues with my rig freezing. My parts are asrock extreme9 with 4 xfx 7970 16 gb memory. Not sure if you use one for games or what not. When I crossfire and run a game it freezes up in about an hour or so but one card is fine. Mining freezes in 4 hours with 4 cards. Doesn't freeze mining (LTC) in 3 cards. It has to be motherboard or card related im guessing. Still trying to figure it out. Hope someone give you and answer.

[Trongersoll]

odd, i have a Sapphire 7970 with a gigabyte MB, celeron proc. running ubuntu 12.? LTS and it does the same thing. nothing seems to make a difference. tried Intensity as low as 3. OC rate doesn't seem to make a difference. no corelation to anything. CGminer 3.3.1