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[Solved] Disappearing SLI Option? *puzzled*

post #1 of 11
Thread Starter 
Up until yesterday I was running my SLI fine with 270.61, for some reasons since today while the system sees both cards there's no longer any SLI option in the nVidia Control Panel.

The SLI bridge is allocated properly and I have tried uninstalling them and then performing a clean install (which solved it some time ago) but it did NOT fix the issue.

Suggestions?
Edited by Mafia2020 - 5/10/11 at 12:41pm
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post #2 of 11
Try:-
1. take out the SLI bridge and re-insert fully. If this does not work,
2. try reversing the SLI bridge. If this does not work,
3. try taking out the cards from their slot and then re-insert them.
post #3 of 11
Thread Starter 
Unfortunately nor 1, 2 or 3 had any effect. The second GPU, while correctly identified by the system, keeps on sitting idle and underclocked at 51Mhz, no matter what...

Also, I tried to enable coolbits as explained here:

http://www.slizone.com/object/slizone_coolbits.html

both with 18 or 1A value, again no effect.
Edited by Mafia2020 - 5/5/11 at 8:46am
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post #4 of 11
Thread Starter 
Apparently 3 random reboots solved the issue. I am still puzzled, but at least I solved my problem.
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post #5 of 11
Thread Starter 
Okay, out of the blue SLI is not recognized anymore. I begin to believe it's software related, any pointers?
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post #6 of 11
Try rolling back the drivers. A lot of people report problems with 270.61.
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post #7 of 11
Thread Starter 
Neither rolling back to any previous drivers, nor restoring the system to a week ago did the trick, SLI still goes undetected while both VGAs are correctly identified...
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post #8 of 11
try a different SLI bridge
post #9 of 11
Thread Starter 
I will, though it is strange that up until a few days ago everything was working sweet and now it doesn't work anymore. Also, I have read, that SLI *should* work even without a SLI bridge (even though less effectively) and I have tried to remove the SLI bridge to see if it helped, but it doesn't. SLI is not recognized in any case.
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Hard DriveCoolingOSMonitor
1xSSD 120GB; 1xHDD 300 GB, 1xHDD 500 GB Stock Windows 7 Ultimate (x64) Monitor 22" 
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post #10 of 11
Thread Starter 
Apparently the problem was a screw, I removed the screw that was taking the second VGA in place, and which probably was angling the card slightly preventing it to SLI correctly while still being detected by the system. So it seems solved, for now.
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Intel Pentium Dual-Core G2020 @ 2.5 Ghz ASRock H77 Pro/MVP Nvidia GTX 580 2x2GB DDR-3 Ballistics 
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1xSSD 120GB; 1xHDD 300 GB, 1xHDD 500 GB Stock Windows 7 Ultimate (x64) Monitor 22" 
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LG Blu-Ray Recorder Windows 7 Ultimate x64 Dell 30" (2560x1600) Logitech G19 
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Corsair 1200W Thermaltake Element V Logitech G9x The Barracuda 
CPUMotherboardGraphicsRAM
Intel Pentium Dual-Core G2020 @ 2.5 Ghz ASRock H77 Pro/MVP Nvidia GTX 580 2x2GB DDR-3 Ballistics 
Hard DriveCoolingOSMonitor
1xSSD 120GB; 1xHDD 300 GB, 1xHDD 500 GB Stock Windows 7 Ultimate (x64) Monitor 22" 
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