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SLI crapping since i flashed GPU bios. (GTX570 DCII)

post #1 of 37
Thread Starter 
Well ... if im here its cause im outa idea ... (im using W7 x64, légit )

Flashed Both my DCII to max volts of 1.2v. Everything stay default in GPU bios expect the max volts so i can tune in MSI AB and bench higher clock.

After flashing both card, they can max V to 1.2 using MSI AB. I flashed cards one at a time to be sure. nvflash -4 -5 -6 bios.rom.

But after reistalling my cards, set my sli bridge, boot, blah blah, i cant use SLI anymore. Both GPU can be recognized in GPUz, but windows tell me that :

"Windows has stopped this device because it has reported problems. (Code 43)"

Then reinstalled Nvidia driver, clean install. / Dont work
Then i removed one GPU, tested GPU alone again, work alone.
Then Install Nvidia again with only one GPU, reboot with 2 GPU, / Dont work.
Then i reinstaller WINDOWS 7 x64, drives... / Dont work
Tryed another PCIe slot, / Dont work.

Im outa idea ... can someone help ?

I see the GPU in GPUz ... but windows wont make them SLI.

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post #2 of 37
Quote:
Originally Posted by Boulard83 View Post
Well ... if im here its cause im outa idea ... (im using W7 x64, légit )

Flashed Both my DCII to max volts of 1.2v. Everything stay default in GPU bios expect the max volts so i can tune in MSI AB and bench higher clock.

After flashing both card, they can max V to 1.2 using MSI AB. I flashed cards one at a time to be sure. nvflash -4 -5 -6 bios.rom.

But after reistalling my cards, set my sli bridge, boot, blah blah, i cant use SLI anymore. Both GPU can be recognized in GPUz, but windows tell me that :

"Windows has stopped this device because it has reported problems. (Code 43)"

Then reinstalled Nvidia driver, clean install. / Dont work
Then i removed one GPU, tested GPU alone again, work alone.
Then Install Nvidia again with only one GPU, reboot with 2 GPU, / Dont work.
Then i reinstaller WINDOWS 7 x64, drives... / Dont work
Tryed another PCIe slot, / Dont work.

Im outa idea ... can someone help ?

I see the GPU in GPUz ... but windows wont make them SLI.
Try this:

Reset CMOS, unplug power cord while doing this. Then go into BIOS to load BIOS defaults. See after the motherboard BIOS re-detect the cards would solve the issue. Then uninstall and re-install drivers.


Edit:

Also uninstall Afterburner and select "no" to keep settings. Install Afterburner after the Nv drivers, not prior.



...
Edited by Ken1649 - 11/1/11 at 1:08pm
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post #3 of 37
Thread Starter 
Tryed what you said, dont work ...

Im currently in the process of flashing stock bios. In DOS to be sure ... RE testing each card alone ...
post #4 of 37
I was about to suggest the same to flash stock BIOS. Or try to update motherboard BIOS, If you haven't done so.
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post #5 of 37
Thread Starter 
Im already on the latest MIVE bios. SLI was working before ....

Each card are now with stock clock/volt bios. Each have been tested with OCCT 4.0 GPU test and GPUz see them correctly. Everything is fine.

Turning OFF, installing second GPU ... ill see.
post #6 of 37
Thread Starter 
"Windows has stopped this device because it has reported problems. (Code 43)" .... again ...

Ill try another Motherboard bios ... maybe this one is corrupt for an unknow reason. I played alot with the PCIe lane switch in the process of flashing. Maybe its a bios issue. But i can see noth card into bios.
post #7 of 37
Try one thing. Unplug power cord, remove CMOS battery out for one good hour. I suspected your main BIOS has different version of the backup BIOS?
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post #8 of 37
Thread Starter 
Flashed "over" my bios so its 100% certain is back to default. Still no SLI.

Theres is how it looks like ...




Remember, i just install a fresh windows, reflash both GPU bios, retested both GPU alone and stable, resteted the second PCIe slot im using, reinstalled Nvidia driver. Nothing to do ... NO SLI ... damn ******* ****.
post #9 of 37
Did you remember to put the SLI bridge on?
    
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post #10 of 37
1. Uninstall your Nvidia drivers from the Control Panel. Keep both cards in SLI.
2. Reboot.
3. Install Nvidia drivers and do a clean install.
4. Reboot.

Should work. If it doesn't, use DriverSweeper to Analyse all Nvidia items, then Cleanse, after Step 1 and before Step 2.
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