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BSOD after crossfire install

millsd44

millsd44

millsd44

Associate
Joined
16 Mar 2012
Posts
174
Hi

I've just bought another 7950 for a crossfire setup. I originally took out my first card and put in the second one when it arrived just to make sure it worked ok. It was fine, getting the same results in benchmarks so an identical card pretty much.

However, now I've set them up with a crossfire bridge, I can get to the stage of being in Windows to install drivers, however as soon as they are installed I get a BSOD on restart and cant get back into windows anymore. I have to run driver cleaner in safe mode to get it to boot back into windows again.

I've tried 13.2 beta 7 and 13.1 drivers and both of them do the same thing (although 13.1 gets slightly further into the spinning windows logo than the beta drivers before giving me a BSOD).

Any ideas? Sorry about the picture quality. I'm no good at telling what BSOD codes mean..

My system:

i5 3570k
2x Windforce 7950's
8gb 1600mhz ram
Gigabyte UD5H

2rei1yg.jpg
 
Update your mobo BIOS. A few Gigabyte MOBO's have had issues and a new BIOS has fixed it.

I think there is a beta BIOS but not 100%. Use that if there is.
 
Thanks for the suggestion. I've just tried that, updated from F4 to F14. There was one stage where the main improvement was VGA compatibility but it hasn't seemed to work. I'm still getting the BSOD at each start up..
 
I assume you have tried each card on its own? Do you have another CF bridge to try as well? Have you put your CPU at stock as well as your memory?

Seems strange it is fine till drivers are installed.
 
I've got an HX750 which I've been told will be enough to power them?

And no, I don't have another CF bridge to try. Worth ordering one do you think? I'll give it a go with CPU at stock..
 
I've tried all sorts of combinations now. It boots into windows when I have the crossfire bridge off and no 6pins connected to the second card, even though it's still plugged into the motherboard.
 
oldestgregg said:
Silly question but can you put the crossfire bridge on the wrong way? Dont know if they fit the opposite way around
Click to expand...

I wasn't sure about this either. So I tried the bridge the other way around, and then on the other set of connectors, and then the other way around on the 2nd set. No luck.

I've ordered a new bridge off the bay. Now just got to sweat until it arrives as I'm out of ideas..

Thanks for all your suggestions so far
 
oldestgregg said:
Silly question but can you put the crossfire bridge on the wrong way?
Click to expand...

No you can't.

I would look about for your other crossfire bridge that came with your original gpu, should be in the box, unless you threw it out.

Plug in both gpu's and power without the bridge and check if it boots into windows fine, if it does, your getting somewhere.

I would do this anyway regardless:

Uninstall the AMD driver, restart.

Then use AMD's official Cleanup utility(W7 only), restart.

Install second gpu/pcie power/CF bridge, power on, wait for legacy drivers to install, restart.

Install the amd driver, restart and hopefully the CrossFire box appears automaticaly.
 
Doing some reading up and the problems were sorted with a fresh install of windows in most cases. Very excessive but if it gets the problem sorted, worth it I guess.

I wouldn't be happy doing that as I have a slow Internet but AMD drivers can be a little finicky.
 
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