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6950(Unlocked Shaders) + 6970 CF Black Screen after starting 3d application

post #1 of 9
Thread Starter 
Hey guys,

I'm in a bit of trouble here. I got a MSI R6950 reference to CF with my 6970. I first tried with 6970 BIOS and tried to run CF in that. However, I came across BSOD 116 which indicates bad GPU.

Here's a list of the things that I have done:

1. Reformatted Win 7 and reinstalled with 11.3 and 11.4 catalyst. (11.2 also same result)
2. Played around with both single cards w/o CF and turns out to be fine.
3. Updated my MB BIOS and tried to run everything on stock.
4. Switched around CF bridges.
5. Tried to re-flash into stock 6950 BIOS and also tried 6950 modded BIOS.
6. Swapped GPUs around.

I'm clueless right now. I am assuming I have bad card but this only happens when I enable CFX and tried playing games (Metro 2033, BFC2, and 3dmarkvantage). I watched the temps and usage in MSI afterburner and saw that whenever the screen goes black, my second GPU would go -1c and 200% usage.

Thanks in advance. The sig is the sig rig so PSU is not a problem here as well.

Edited by Pencuri - 4/27/11 at 12:06am
My Computer
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CPUMotherboardGraphicsGraphics
i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
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SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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post #2 of 9
have u tried 11.2?
    
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post #3 of 9
Thread Starter 
It's in one of my to do list. I will try that soon.

UPDATE: 11.2 also same result. After turning on metro2033, screen goes black and monitor goes into sleep mode.
Edited by Pencuri - 4/26/11 at 11:57pm
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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post #4 of 9
It is the different RAM timings of both cards which fluctuate in CF that is what is causing the black screen.
The BSOD only strenghtens that theory.

You need to flash the 6950 to the 6970 BIOS to apply the equivalent timings of the 6970.
Only then will both cards run stable in CF mode
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post #5 of 9
Thread Starter 
I will try that tomorrow. It's getting late. Thanks for the responses people.

If anyone else has an input please feel free to add. Thanks in advance.
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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post #6 of 9
you should try following kung pow's advice..having different clocks/settings can result to instability moreover try to find a stable driver for those..11.3 is the most stable around plus it has a patch that fixes a numerous issues..
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post #7 of 9
Thread Starter 
Unfortunately,the same result goes if I flash 6970 BIOS. After a second of turning on Heaven benchmark or 3dmarkvantange, the second gpu goes crashing.

I'm gonna try 11.4 that is released today.
My Computer
(19 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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My Computer
(19 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
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post #8 of 9
Quote:
Originally Posted by kairi_zeroblade View Post
you should try following kung pow's advice..having different clocks/settings can result to instability moreover try to find a stable driver for those..11.3 is the most stable around plus it has a patch that fixes a numerous issues..

Yes I am very confident that will solve the problem
Just flash to full 6970 BIOS and the RAM timings will be equal and therefore stable.

Also if Afterburner doesn´t do it automatically the clocks of both cards need to be identical
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Hard DriveOptical DriveOSMonitor
SSD Corsair F40 DVD,DVR,Blue Ray Windows 7 Ultimae 64 bit Sony Bravia Full HD 42" 
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post #9 of 9
Thread Starter 
Quote:
Originally Posted by Kung Pow View Post
Yes I am very confident that will solve the problem
Just flash to full 6970 BIOS and the RAM timings will be equal and therefore stable.

Also if Afterburner doesn´t do it automatically the clocks of both cards need to be identical
I followed techpowerup's guide, so I would assume that is the full 6970 BIOS right? I am missing something here?
My Computer
(19 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
OSMonitorKeyboardPower
Windows 7 Professional x64 Dell U3011 G19 Corsiar AX850 
CaseMouse
Caselabs SMH10 G500 
  hide details  
Reply
My Computer
(19 items)
 
  
CPUMotherboardGraphicsGraphics
i7 920 D0 4.2Ghz 1.35v EVGA X58 Classified 760 Sapphire HD 6970 Sapphire HD 6970 
GraphicsRAMHard DriveHard Drive
MSI HD 6970 12 Gb Patriot Sector 7 DDR3 Crucial M4 SAMSUNG Spinpoint F3 HD103SJ 1TB 7200 RPM 
Hard DriveHard DriveOptical DriveCooling
SAMSUNG Spinpoint F4 HD204UI  SAMSUNG Spinpoint F3 HD103UJ 1TB 7200 RPM Samsung DVD drive EK Supreme HF, EK waterblock HD6970, EX480 XSPC... 
OSMonitorKeyboardPower
Windows 7 Professional x64 Dell U3011 G19 Corsiar AX850 
CaseMouse
Caselabs SMH10 G500 
  hide details  
Reply
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