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GTX 580 Broken .. Highly unstable, crashes etc. - Page 2

post #11 of 14
Definitely try updating to the newest available motherboard BIOS to see if that helps. However, seeing as you have a Sandy Bridge platform, this is less likely to be an issue, but it is still definitely worth a shot.

Looking over your specs again, I see that you have EK GPU blocks. I don't know if you did this already, but I would suggest reseating that block. Depending on which revision you have, EK's installation scheme may be difficult to pull off flawlessly, and you may actually have a screw or two that got torqued a bit too much - or that missing pad may be causing a short somewhere on your card.

One of the mods on this board had strange GPU issues as well, and once he reverted back to stock cooling, everything worked flawlessly once again again. Upon closer inspection, he found out his block had a small leak that was shorting out his card. It may be worth revisiting the stock cooler to see if your problems will go away.

I realize that it will be difficult to take apart your watercooling setup, but if you do the above, you might as well try the following. Try running with one card installed at a time on the primary PCIE slot, using only the GX750. Fire up a game or benchmark for 15-20 minutes each. In an attempt to rule out the motherboard, try also running each card installed on only the secondary slot to see if things continue to run fine - I'm not sure if this is allowed on the Sandy Bridge platform though. If you find there are problems with one slot or the other, then the motherboard may need some closer attention. However, if each card is running fine on its own, without even needing a voltage bump to keep it stable, it's possible that the LC may not be supplying enough power and it would require you to re-buy a high-quality 850W+ power supply.

Another thing to rule out is also to make sure that the SLI bridge is installed correctly and has a snug fit. I don't know about the regular two-way bridges, but if you have a three-way bridge, there is a specific orientation to install the bridge. If you happen to have another bridge to test, see if that may change anything. It's rare, but bad bridges or bad installs can cause a lot of headaches.

I hope one of the above will be able to point you in the right direction.
     
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post #12 of 14
You can't use one Palit and one EVGA for SLI. You have to return the Palit for a EVGA or the EVGA for a Palit.
post #13 of 14
Quote:
Originally Posted by chauhanneel View Post
You can't use one Palit and one EVGA for SLI. You have to return the Palit for a EVGA or the EVGA for a Palit.
The brand of the card does not matter. You absolutely can mix and match brands as much as you want, so long as the actual GPU itself is the same. However, you cannot, for instance, mix a GTX 570 and GTX 580 even if it is the same brand.
     
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post #14 of 14
Quote:
Originally Posted by chauhanneel View Post
You can't use one Palit and one EVGA for SLI. You have to return the Palit for a EVGA or the EVGA for a Palit.
Incorrect. If you don't know please don't post.
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3930k ASUS Rampage IV Gene EVGA GTX480 @ 900MHz @ 1.1V EVGA GTX480 @ 900MHz @ 1.1V 
RAMHard DriveOptical DriveOS
4 x 4Gb Corsair Dominator 1866MHz Samsung 830 256GB LG DVD Burner Win 7 x64 
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DELL U3011 DELL U3011 DELL U2410 Ducy Shine 2 
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Audio
Yamaha HS80m 
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