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Crossfire Disappears after a shutdown

post #1 of 21
Thread Starter 
Been battling this problem ever since I installed the second card but it appears I finally narrowed down the issue somewhat. I'm running a Windows 7 64-bit OS along with 10.12 drivers (though the problem existed as far back as 10.9). Everytime I do a system shutdown the Crossfire Option completely disappears and the second card is not visible in Device manager either. I've disabled ULPS completely in the registry editor but still nothing. This is coming off a fresh install following a wipe of drivers using AMD's CCC uninstall, Driver Sweeper and an uninstall of both cards from Device Manager.

Really confused and frustrated why this keeps happening. I'll have both cards showing up and the Crossfire option is visible in CCC after a fresh install of drivers but once I shutdown (not the system restart following the driver installation) the computer and turn it back on the second card disappears completely. I haven't even touched voltages or clock settings yet, the card just flat out refuses to show up after a shutdown and the only way I've ever been able to make it show up again is a driver wipe.

Any ideas how I can solve this? Its getting to the point that I almost just want to sell both my 5850s and buy a 580.

Small Update: The second card becomes visible on occasion if I restart the computer immediately after doing a system shutdown.
Edited by Deegs - 1/12/11 at 2:16pm
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post #2 of 21
Hmm... have you tried running each card by itself just to confirm they work properly? Also, when in CFX, is it with 1 or 2 bridges?
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post #3 of 21
Thread Starter 
Both cards are tested and confirmed to work fine individually. I'm using 2 CFX bridges to connect the cards.
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post #4 of 21
Try going back to 10.5 drivers. Start by uninstalling the 10.12 by using its own install app, choose uninstall. Reboot then install the 10.5.
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post #5 of 21
Thread Starter 
I'll try that but if you don't mind me asking, any particular reason why 10.5? Something happen to the driver software after that one?

Edit: No luck. Did exactly that and I'm only getting 1 card displaying in Device Manager and I cannot activate CrossfireX in CCC. It might be worth mentioning that my Mobo is a single PCIe-x16 or Dual PCIe-x8 board and not a dual PCIe-x16 board but I can't imagine that would cause problems.
Edited by Deegs - 1/12/11 at 9:06pm
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post #6 of 21
Well, I'm leaning towards a driver conflict/problem and 10.5 is a very basic driver. Another thing I'm curious about is AFTER a driver uninstall, windows should install the standard vga driver. Once that's done, can you reboot a few times to see if your 2nd card disappears?
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post #7 of 21
Thread Starter 
I haven't been able to test that per-say yet but I can confirm this last time that when I uninstalled 10.12 after the restart and before I installed 10.5 the computer was only reading a single 5850. When I installed the 10.5 drivers and restarted the same thing was present. Oddly enough, when I uninstalled the 10.5 drivers and uninstalled the single 5850 from device manager then reinstalled 10.12 the second card appeared magically. I have not rebooted since as I rather afraid of Crossfire disappearing again.
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post #8 of 21
Hey, you should confirm both cards stay in device manager while the standard vga driver is installed. You still need to figure out if it's a software problem or hardware.
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post #9 of 21
Thread Starter 
ok, I'll uninstall the CCC drivers and do some shutdowns with the standard vga driver. I'll update as soon as I can.
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post #10 of 21
Hey, get the new 11.1a drivers. With what time I've spent on them they seem to be awesome and super stable. Turn on CFX, it turns on. Turn off CFX, it turns off. Who'd a thunk it worked that way?
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