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Crossfire causing issues?

post #1 of 8
Thread Starter 
Today I just received my new Gigabyte 7950 and installed it into my system. This one is a Revision 2 which is a 6+8 pin but comes voltage locked @ 1.25v, and is being paired with a Rev 1 which is 6+6 and unlocked voltage. The first thing I notice after installed the second card is that my keyboard has no stopped working. It works entirely fine until windows boots up, then it just refuses to work. There's power to the keyboard as the lights are all on, but there's no function whatsoever. I try to reinstall the drivers to it, but the drivers refuse to acknowledge that the keyboard is even plugged in. I remove all USB devices except for my mouse and keyboard as well as the keyboard that I've gotten to work that requires no drivers. I reinstall the latest AMD drivers hoping that it was just something conflicting with crossfire enabled, and I reboot and get everything setup again. Even after disabling and enabling CF there's still no change in the response in the keyboard. I go into the bios and reset my overclock back to full stock settings for everything, making sure that everything's back to stock. Still no change in the keyboard. Driver control panel says that the correct and latest drivers are installed and fully functional. At this point I remove the new 7950 and boot up the system perfectly fine with no issues with the keyboard at all. Fully functional as if nothing had happened. To make sure it wasn't the new 7950, I remove the old one and install the new one in it's place. Everything's working perfectly normal now, except when I add in both cards. Anyone have any clue what could be wrong? I know my Corsair TX850 has enough juice to power both cards.

TL:DR Things I've done:

1) Reverted everything back to stock settings
2) Reinstalled AMD drivers after installing second video card
3) Reinstalled Keyboard drivers after removing second card
4) Tested both video cards individually which cause no problems with the keyboard
5) Removed all other USB devices and tested each slot individually

EDIT: I've been running the first card in the 16x slot on my MOBO and the second card in the 8x slot leaving 1 slot gap between the cards. I just tried running a single card in the 8x slot and the keyboard would not work still. I moved to the 4x slot next and after reinstalling AMD drivers again because it said they were not installed the keyboard was now working. I then installed the second card back into the 16x slot and ran the second in the 4x which also worked fine. So it seems that there's something possibly wrong with my 8x slot? I'd rather not have to run it in the 4x slot which causes the cards to be sandwiched and will definitely not provide good temps. Is there anything else that I can do to see if it's my 8x slot and not something else that I've overlooked?
Edited by Shiromar - 9/12/13 at 9:45pm
post #2 of 8
Kind of stumped myself, I've never heard of an issue with a bad pci-e slot affecting a keyboard.
Are all the usb settings enabled in the motherboard bios?
Are you able to try a different keyboard to see if the same thing happens?

Another shot in the dark, you could try installing the latest Intel Chipset Driver, if that doesn't help, perhaps a bios update for your motherboard?
    
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post #3 of 8
Thread Starter 
Quote:
Originally Posted by DerComissar View Post

Kind of stumped myself, I've never heard of an issue with a bad pci-e slot affecting a keyboard.
Are all the usb settings enabled in the motherboard bios?
Are you able to try a different keyboard to see if the same thing happens?

Another shot in the dark, you could try installing the latest Intel Chipset Driver, if that doesn't help, perhaps a bios update for your motherboard?

It doesn't seem like the PCI-E slot itself is bad... I'm able to run CF successfully using 16x/8x but the keyboard doesn't work which is my main problem. I've checked my Bios and I made sure that the 2 settings for USB are on, and I'm using a generic USB keyboard successfully right now, however it's my main keyboard (Cyborg V.7) that doesn't work. I've tried reinstalling the drivers for this keyboard, but the drivers themselves fail to recognize the keyboard being plugged in which is a requirement for the drivers to install. I'll look into some updates for the Mobo, but as far as I know I have all the latest drivers.
post #4 of 8
oh the beauty of still using the classic PS/2 port...

I think your mobo has a BIOS fault that the USB controllers fudge up when the x8 slot is used, or there's some strange IRQ or IO conflict...

you've tried the keyboard on every USB port and it still does the same thing? even the USB3.0 ports? think you could also try linux or a dos boot to see if the keyboard still works there?

also be sure to check for a firmware update for the keyboard and contact the manufacturer to see if they know about this...
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post #5 of 8
Give this a Go with a bit of luck it should do the trick!

Update your bios

Remove/uninstall All VGA OCing software.. If that does not work maybe a try a full on clean install of all vga drivers as follows (btw do not do this if you have a AMD cpu)

1. (Express Uninstall) Uninstall Catalyst Control Center in the Programs and Features control panel
Reboot into Safe Mode
Once in Safe Mode, open Driver Sweeper
Select "AMD - Display"
Click "Clean"
Reboot when it prompts you


Then do this (its take a lot less time than you think!)

4. Go to folder options and select “show hidden files and folders”

The next part of the guide will remove all ATi/AMD files and folders from the computer.

5. Go to your C drive and remove the “AMD” folder

6. Double click the “Program Data” folder (Normally hidden) and remove all ATi/AMD folders

7. Go back to C and double click “Program Files” and remove all ATi/AMD folders

8. Go back to C and double click “Program Files (x86)” and remove all ATi/AMD folders

9. Go back to C and double click “Users”

10. Access the name of your windows profile and double click “AppData” (Normally hidden)

11. Check the “Local”, “LocalLow” and “Roaming” folders for any ATi/AMD folders and remove them.

12. Go back to “Users” and check the “Default” folder (Normally hidden)

13. Double click “AppData” (Normally hidden)

14. Check the “Local” and “Roaming” folders for any ATi/AMD folders and remove them.

The next part of the guide will remove registry entries left by the AMD drivers.
15. Close everything down and go back to your desktop

16. Click start, then type “regedit”.

17. Click “HKEY_CURRENT_USER” and extend the folder

18. Click “Software” and extend the folder

19. Remove all AMD and ATi Folders

20. Click “Wow6432Node” and extend the folder (Within the software folder)

21. Remove the “AMD” folder

22. Click “HKEY_LOCAL_MACHINE” and extend the folder

23. Click “SOFTWARE” and extend the folder

24. Remove all AMD and ATi Folders

25. Click “Wow6432Node” and extend the folder

26. Remove all AMD and ATi Folders

27. Click “HKEY_USERS” and extend the folder

28. Click “.DEFAULT” and extend the folder

29. Click “Software” and extend the folder

30. Remove all AMD and ATi folders

31. Click “S-1-5-18” and extend the folder

32. Click “Software” and extend the folder

33. Remove all AMD and ATi folders

34. Click “S-1-5-21-1632250243-966907716-928185508-1000” and extend the folder

35. Click “Software” and extend the folder

36. Remove all AMD and ATi Folders

37. Close down regedit and empty your recycle bin

38. Undo the folder options change to hide the hidden folders

39. Reboot

40. Install your AMD/Nvidia drivers and reboot
    
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post #6 of 8
seeing as your using win7 you could just try driversweeper and/or use the uninstall utility...

but unless we can confirm its windows-side, its likely a hardware fault.
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post #7 of 8
Your mobo doesn't happen to have both usb 2.0 and 3.0? If so I believe there are 2 different controllers for both. If it is currently plugged into the 2.0 slot move it over into the 3.0 as they are backwards compatible.
post #8 of 8
Thread Starter 
Alright, I actually managed to get the keyboard working. I uninstalled the drivers and tried every USB port again, this time the front USB ports recognized the keyboard and I was able to reinstall the drivers. I'm typing on it now as we speak. However the keyboard still has the same issues with all of the back USB ports, which I would really like to get figured out why this is.
Quote:
Originally Posted by Paul17041993 View Post

oh the beauty of still using the classic PS/2 port...

I think your mobo has a BIOS fault that the USB controllers fudge up when the x8 slot is used, or there's some strange IRQ or IO conflict...

you've tried the keyboard on every USB port and it still does the same thing? even the USB3.0 ports? think you could also try linux or a dos boot to see if the keyboard still works there?

also be sure to check for a firmware update for the keyboard and contact the manufacturer to see if they know about this...

Actually the keyboard I was typing on was a plane no-name USB keyboard. This one worked fine on all USB (2.0 and 3.0) ports no matter what, whereas the cyborg did not. I did check to make sure that everything was up to date, which it was. Very weird issue indeed.

Quote:
Originally Posted by Paul17041993 View Post

seeing as your using win7 you could just try driversweeper and/or use the uninstall utility...

but unless we can confirm its windows-side, its likely a hardware fault.

I'm going to try this later tonight.
Quote:
Originally Posted by crr127 View Post

Your mobo doesn't happen to have both usb 2.0 and 3.0? If so I believe there are 2 different controllers for both. If it is currently plugged into the 2.0 slot move it over into the 3.0 as they are backwards compatible.

Yup, tried both 2.0 and 3.0 and neither were working.
Quote:
Originally Posted by 4514kaiser View Post

Give this a Go with a bit of luck it should do the trick!

I'll give this a go later tonight when I get home. If that doesn't do the trick, I think I'll leave it as is since at this point I'm assuming it's a Mobo issue since I was able to get the keyboard working on the front USB ports, but not the back still.
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