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System Freeze, suspect GPU (6950's)

Last response: in Graphics & Displays
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September 11, 2012 9:07:30 PM

So about a week ago I started getting system freezes while playing games so I started monitoring temps in Afterburner and right as the temps for my GPU's hit 76C the system freezes

Right now Im using a crossfire setup with 2 MSI Twin Frozr II 6950's, now that being said I should have no heat issues whatsoever with these cards (if you believe what people post on newegg reviews)

has anyone had problems with these overheating?

all clocks are at stock with stock voltage and fans are on max
September 11, 2012 9:08:27 PM

What power supply?
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September 11, 2012 9:08:44 PM

Rosewill 950w Extreme series

read some reviews on it after purchase and really couldnt find anything about failures, but nonetheless it has plenty of power for my system

is there any way to monitor PSU temps?
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September 11, 2012 9:23:34 PM

No, the PSU should be fine.
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September 11, 2012 9:24:47 PM

so any ideas?
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September 11, 2012 9:32:32 PM

hmm does the system freeze for a few secs then go black, then recovers as if nothing happens. If so then my single 7950 does this if i overclock at a low voltage. atleast that's what i have so far to be the issue.
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September 11, 2012 9:32:43 PM

nah this is a complete system lock, have to restart pc, not even bluescreen

I dropped my cpu overclock and RAM overclock and it still happened, tried upping voltage on stock GPU clocks to see if that would help but still happened
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September 11, 2012 9:35:12 PM

Also, 76C is not that hot. Mine went up past 85C in certain games before I switched it out. I had to replace it with a GTX460 (don't worry the 6950 is still being used)
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September 11, 2012 9:37:27 PM

one of the fan blades is missing on the warmer card so that would probably explain the higher temps but I cant explain the system hang, and its only on some games

NFS Shft 2, Dirt 3, Skyrim*

*these are all on an eyefinity setup res 6024x1080
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September 12, 2012 2:59:35 PM

So upon further testing Ive isolated what i think is the problem

I disabled crossfire and was playing BF3, temps got up to the threshold of the 77-79C area and system locked but this time it was just the driver that failed

so more than likely i have a bad card, but how can I go about fixing the problem?
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September 12, 2012 3:26:19 PM

Are your cards overclocked? Try one at a time.
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September 12, 2012 3:31:55 PM

no overclock, just did that and only one causes the problem
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September 13, 2012 4:28:19 AM

So I pulled the bad card out and the system is much more stable, MSI granted me an RMA so hopefully ill have a new stable card here shortly
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September 13, 2012 4:32:35 AM

Best answer selected by CG_Gamer.
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