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Mobo problem? Cards in SLI won't POST.

post #1 of 7
Thread Starter 
I'm planning on starting a ticket with Asus unless I find an explanation or solution for this. Here's the story.

Windows froze. Upon reboot I get the black screen of death (no login screen). Reboot, same thing. Try to repair with the repair disc, it fails. Try to restore, that fails too. Try to boot into linux, my Grub is gone. Start wondering where to go from that. So I start troubleshooting hardware. RAM, DIMMS, GPUs, etc.

Long story short, with 2 cards in I can not post. With one card, either one, in the top most slot, it will post. With one card, either one, in the bottom slot, it will not post. After diagnosing it and having only one card in the upper slot, my software issues seem to disappear. Can boot to both Windows and Linux no problem.

As far as I'm seeing this, it's pointing to that 2nd PCI-E x16 slot.
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post #2 of 7
It sure does sound like you've figured out the issue. I'm curious though, did this issue just come about randomly recently, or have you been having other problems all along that led up to this point? If it has been an ongoing issue, it may be related to IRQ's not being assigned properly. See if disabling the HD audio can help:

http://www.evga.com/forums/tm.aspx?m=586183

The other thing I may suggest before doing an RMA would be to see if you have the latest motherboard BIOS, even if it may be a beta.

Other then that, I wish you luck. I know how frustrating it is to go through so much trouble.
     
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post #3 of 7
Thread Starter 
Quote:
Originally Posted by covertash View Post
It sure does sound like you've figured out the issue. I'm curious though, did this issue just come about randomly recently, or have you been having other problems all along that led up to this point? If it has been an ongoing issue, it may be related to IRQ's not being assigned properly. See if disabling the HD audio can help:

http://www.evga.com/forums/tm.aspx?m=586183

The other thing I may suggest before doing an RMA would be to see if you have the latest motherboard BIOS, even if it may be a beta.

Other then that, I wish you luck. I know how frustrating it is to go through so much trouble.
I haven't had any video issues. This occurred out of the blue after Windows froze up, ctrl-alt-del wouldn't do anything and had to reset.

I'll try updating BIOS, look into disabling HD audio.

I also reset the CMOS about 20 times during my troubleshooting to see if something was stuck.
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post #4 of 7
Thread Starter 
I updated the bios...now for some reason the default pci-e slot is now the bottom one. I can't boot into windows now either. This is beyond frustrating now. I have no idea what is going on.

Edit: Still have no idea what is going on. I got it to boot after repeating steps I'd done many times, like swapping cards. Trying a single card in each slot. Removing RAM, clearing CMOS....I'm still very much confused as to what happened. After getting into windows, now the top slot appears not to work. The 2nd card isn't showing up. Both cards will work in the bottom slot.
Edited by esocid - 1/8/11 at 11:25am
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post #5 of 7
If you look in the BIOS there should be an option to set the primary Video Adapter. Make sure it is set to the first PCIE slot.
     
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post #6 of 7
Thread Starter 
Quote:
Originally Posted by covertash View Post
If you look in the BIOS there should be an option to set the primary Video Adapter. Make sure it is set to the first PCIE slot.
I looked for that while I was pulling my hair out, and there is an option there, but the only two options for it are pci-e and pci. Although I didn't mess with it, because I'm wary of this board right now. I'm just glad to be inside my OS finally.
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post #7 of 7
Yeah the common denominator sounds like the motherboard. It sucks but it looks like an RMA is in order.
     
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