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HD6950 unlocked insta-crashes when msi AB is installed

post #1 of 4
Thread Starter 
Hello OCNers:

I have 2 diamond HD6950s flashed with 6970 bios. Everything seemed to work perfectly however if I install Afterburner or TRIXX I get either an 0x7e or 0x3b BSOD.

It crashes the first time I move the slider at all. So for example at 6970 stock core clock of 880, if I move it to 881 it'll crash.

This doesn't happen in CCC.

What can I try to get this resolved? I really want to be able up the volts and use the fan profiles.

Any suggestions?
post #2 of 4
AB 101 = disable ulps
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post #3 of 4
I had that same problem with mine. Afterburner worked fine until I decided to use the unofficial overclocking. I kept getting a BSOD resulting from atikmdag.sys. Trixx will cause it to happen as soon as I open it. Turning ULPS off in the registry didn't work for me either. I ended up using a registry hack to increase CCC overdrive limits and disabled unofficial overclocking. You can find the registry hack here. http://www.techimo.com/forum/graphic...reg-entry.html
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CPUMotherboardGraphicsRAM
i7-3770k Gigabyte Z77X-UP5TH 2 x HD6950 Corsair Vengeance 
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RAD: HW Labs GTX 360 Stealth GPU's: 2 x EK FC-6950 CPU: EK Supreme HF Scythe Ultra Kaze 3K RPM x10 
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CPUMotherboardGraphicsRAM
i7-3770k Gigabyte Z77X-UP5TH 2 x HD6950 Corsair Vengeance 
Hard DriveOptical DriveCoolingCooling
2x 1 TB WD Black Raid 0  Lite-On 24x DVDr-RW DL Pump: Swiftech MCP35x2 RAD: 2x MCR320  
CoolingCoolingCoolingCooling
RAD: HW Labs GTX 360 Stealth GPU's: 2 x EK FC-6950 CPU: EK Supreme HF Scythe Ultra Kaze 3K RPM x10 
CoolingOSMonitorKeyboard
Zalman MFC1 Plus Fan Controller x2 Win 7 Pro x64 3 x Asus VW246 Logitech G15 rev1 
PowerCaseMouseMouse Pad
Corsair TX850 Custom(work in progress) Logitech G5 RocketFish SpeedPad 
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post #4 of 4
I believe it is caused by pushing the AB clocks above the upper limit of the CCC clock..in short you need to registry hack CCC to increase those values and disable ULPS.
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Bare Essentials
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i7-930 @ 4.0 GHz ASUS P6X58D Premium MSI 6950 2 GB CFX (shaders unlocked) Corsair XMS3 8 GB (4GB x2) 
Hard DriveOSMonitorKeyboard
Intel X25-M 80 GB SSD Win7 Home Premium 64 bit Samsung S27A950D OCN Ducky (Browns) 
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Ultra X3 1000W CoolerMaster HAF X CoolerMaster Storm Spawn Puretrak Talent 
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