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[SOLVED] HD6950 (1GB) Crashes on Unigine, BF3 and Skyrim

Last response: in Graphics & Displays
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January 11, 2012 4:48:47 AM

About a week ago I built my first computer from the ground up and was fairly satisfying except for this issue I am now having.

System Specs:
QuadCore Intel Core i7-2600K, 3600 MHz (36 x 100)
Asus P8Z68 Deluxe/Gen3 (2 PCI, 2 PCI-E x1, 3 PCI-E x16, 4 DDR3 DIMM, Audio, Dual Gigabit LAN, IEEE-1394)
Intel Cougar Point Z68, Intel Sandy Bridge
16289 MB (DDR3-1333 DDR3 SDRAM)
DIMM1: Corsair Vengeance CMZ16GX3M4A1600C9 4 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 592 MHz) (7-7-7-19 @ 518 MHz) (6-6-6-16 @ 444 MHz)
DIMM2: Corsair Vengeance CMZ16GX3M4A1600C9 4 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 592 MHz) (7-7-7-19 @ 518 MHz) (6-6-6-16 @ 444 MHz)
DIMM3: Corsair Vengeance CMZ16GX3M4A1600C9 4 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 592 MHz) (7-7-7-19 @ 518 MHz) (6-6-6-16 @ 444 MHz)
DIMM4: Corsair Vengeance CMZ16GX3M4A1600C9 4 GB DDR3-1333 DDR3 SDRAM (9-9-9-24 @ 666 MHz) (8-8-8-22 @ 592 MHz) (7-7-7-19 @ 518 MHz) (6-6-6-16 @ 444 MHz)

(side note: does the memory look setup correctly?)

Video Adapter AMD Radeon HD 6900 Series (1024 MB)
Video Adapter AMD Radeon HD 6900 Series (1024 MB)
Video Adapter AMD Radeon HD 6900 Series (1024 MB)
Video Adapter AMD Radeon HD 6900 Series (1024 MB)
Video Adapter Intel(R) HD Graphics Family (3949062 KB)
3D Accelerator AMD Radeon HD 6950 (Cayman)
3D Accelerator Intel HD Graphics 3000

Symptoms:
1) Reasonable temps (50-70) with it air cooled
2) Crashes after 5-10 minutes of playing Skyrim (computer goes to black screen and is completely unresponsive)
3) Crashes on Unigine when it gets to the air boat (computer goes to black screen and is completely unresponsive)
4) Used to Crash in BF3 until I moved the Power Control Settings in AMD Overdrive (CCC) to +20%, but doesn't fix the other crashes

GPU-Z Log on Unigine Crash (very similar to the Skyrim Crash):
Date , GPU Core Clock [MHz] , GPU Memory Clock [MHz] , GPU Temperature [°C] , Fan Speed [%] , GPU Load [%] , Fan Speed [RPM] , GPU Temp. #1 [°C] , GPU Temp. #2 [°C] , GPU Temp. #3 [°C] , VDDC [V] ,
2011-01-17 15:56:50 , 250.0 , 150.0 , 37.0 , 70 , 0 , 4652 , 37.0 , 29.5 , 34.0 , 0.900 ,
2011-01-17 15:57:15 , 880.0 , 1375.0 , 44.0 , 70 , 0 , 4617 , 43.5 , 43.5 , 47.0 , 1.175 ,
2011-01-17 15:59:56 , 880.0 , 1375.0 , 62.0 , 70 , 99 , 4603 , 62.5 , 64.0 , 67.5 , 1.175 ,
2011-01-17 15:59:57 , 880.0 , 1375.0 , 62.0 , 70 , 99 , 4604 , 62.0 , 63.5 , 67.0 , 1.175 ,
2011-01-17 15:59:58 , 0.4 , 3196.9 , -1.0 , 100 , 100 , 0 , 32767.5 , 32767.5 , 32767.5 , 0.000 ,
2011-01-17 15:59:59 , 0.4 , 3196.9 , -1.0 , 100 , 100 , 0 , 32767.5 , 32767.5 , 32767.5 , 0.000 ,

More Info:
1) Nothing is overclocked as far as I know (Asus has tons of tools to tweak the system).
2) I am running 11.12. I tried the 12.1 preview but that was even worse.
3) I am running a 1000w PSU.
4) This user might have similar issues as me: http://www.vgaforum.com/showthread.php?25956-6970-Crash... He ended up changing some voltage settings around that I can't find in my BIOS.

So geniuses! What am I missing! :cry:  Thanks for any help or tips you can provide.
January 11, 2012 5:26:27 AM

Power supply?
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January 11, 2012 5:43:23 AM

SO I found someone else having similar issues.

These were my tests (6950 has two 6 pin plugs, PSU has 2 six pin and 2 eight pin):
1) Had the card running on two eight pin connectors (minus the two on both) - crashed within 30 seconds
2) Card switched to the two 6 pin connections - ran for 3 minutes+
3) Card had one 8 pin and one 6 pin - 30 seconds
4) Card had two 6 pin connectors - ran for 3 minutes+ again

So that being said. It must be the PSU? This is the one: http://www.newegg.com/Product/Product.aspx?Item=N82E168...

Should I RMA it? What would you recommend if I wanted to Crossfire in the future?
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January 13, 2012 5:02:08 PM

Just wanted to update this thread for people that may have the same issue as I did.

I swapped out my Rosewill 1000w PSU (http://www.newegg.com/Product/Product.aspx?Item=N82E168...) and put in a Corsair 800GS and I was able to loop through the entire Unigine benchmark.

Had no idea that a PSU could do so much damage to a computer and for the same price I should have done it in the first place.

Let this be a lesson to EVERYONE! :) 
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