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Old 2015-08-08, 21:54   #1
cardogab7341
 
Mar 2013
Dallas, TX

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Default Multiple GPU's Windows 10

I just updated to Windows 10 and my multiple GPU setup broke. I was running a GTX 670 as the main video card and mfaktc and a GTX 460 to run mfaktc exclusively. Now, Windows 10 has disabled the GTX-460 with the following error:

Windows has stopped this device because it has reported problems. (Code 43)

Others have seen this problem and it seems to be a driver problem but I have done a clean install of the latest Nvidia drivers.

Does anyone have any suggestions n how to fix this?

Thanks
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Old 2015-08-08, 22:00   #2
Gordon
 
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Nov 2008

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Quote:
Originally Posted by cardogab7341 View Post
I just updated to Windows 10 and my multiple GPU setup broke. I was running a GTX 670 as the main video card and mfaktc and a GTX 460 to run mfaktc exclusively. Now, Windows 10 has disabled the GTX-460 with the following error:

Windows has stopped this device because it has reported problems. (Code 43)

Others have seen this problem and it seems to be a driver problem but I have done a clean install of the latest Nvidia drivers.

Does anyone have any suggestions n how to fix this?

Thanks
Get rid of that spyware masquerading as Windows 10, see the recent discussion on this board...and the countless articles on the web.
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Old 2015-08-08, 22:55   #3
Robert_JD
 
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Sep 2010
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Quote:
Originally Posted by cardogab7341 View Post
I just updated to Windows 10 and my multiple GPU setup broke. I was running a GTX 670 as the main video card and mfaktc and a GTX 460 to run mfaktc exclusively. Now, Windows 10 has disabled the GTX-460 with the following error:

Windows has stopped this device because it has reported problems. (Code 43)

Others have seen this problem and it seems to be a driver problem but I have done a clean install of the latest Nvidia drivers.

Does anyone have any suggestions n how to fix this?

Thanks
First, I would consider making a clean install of Windows 10, if feasible, via an .ISO file and burning a bootup DVD. If that doesn't solve the issue, then consider reverting back to whatever Windows version you were using before.

I've just downloaded the Win10_Pro free upgrade over a Win7/Win8.1 platform. On that particular box, running LL tests on a Titan Black has issues where performance is erratic, eventually slowing down to a crawl. As a result, I was compelled to do many reboots to reset the registers back to a decent performance envelope - only to have yet again the speed drop to a mere shadow of what it was running Win_8.1. However, on the formally Win7 box, the upgrade to Win_10 Pro is surprisingly issue free with decent performance. Have no idea why, but I'm not complaining. Incidentally, as a last ditch fix on the Win8.1/Win10 upgrade, I simply reinstalled the Win8.1 CUDA 7.0 development drivers while doing a clean uninstall of the Win8.1/Win10 NVIDIA gamer drivers. No real issues so far.

Last fiddled with by Robert_JD on 2015-08-08 at 22:59
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Old 2015-08-09, 01:08   #4
science_man_88
 
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what everyone has to remember is this is still not bug free one bug I heard about had certain architectures try to install one bug fix only to fail at doing that reboot and try again and fail in a infinite loop style turns out it was a registry thing I guess so if you don't change that before it tries auto-installing that update again you repeat the loop again:

edit:Windows 10 Forced Updates Causing Endless Crash Loops


Quote:
I think we can now all agree: Microsoft MSFT +0.3%’s hardline policy on Windows 10’s forced updates is silly. Very silly. Since launching nine days ago Windows Update has sent out an unstable graphics driver which switched off monitors, a buggy security patch which corrupted Windows Explorer and there are now a number of reports that a third update is causing Window 10 machines to crash over and over again…

The patch in question is KB3081424 (ironically enough a roll-up of bug fixes) and during its update process affected users find it fails and triggers the message: “We couldn’t complete the updates, undoing the changes.” Undoing them results in a mandatory system reboot, but as soon as the user logs back on Windows 10’s update process kicks in and tries to install KB3081424 again.
another potential worry for some:

Windows 10 Is Automatically Downloading On Windows 7 And Windows 8


Quote:
Did you sign up for a free copy of Windows 10? Are you running a Windows 7 or Windows 8 PC? Then you could be in for a big surprise: Windows 10 may have already started downloading to your PC…
Microsoft MSFT’s stealthy download uses a secret folder – C:\$windows.~BT – and it can be found by opening File Explorer and going to: Organize > Folder Options > View > Show hidden files, folders, and drives.

Last fiddled with by science_man_88 on 2015-08-09 at 01:18
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Old 2015-08-09, 06:33   #5
Ralf Recker
 
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Oct 2010

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Quote:
Originally Posted by cardogab7341 View Post
Others have seen this problem and it seems to be a driver problem but I have done a clean install of the latest Nvidia drivers.

Does anyone have any suggestions n how to fix this?

Thanks
Here is the explanation:

Windows 10 will not load the NVIDIA display driver for my older graphics card in my PC that has multiple graphics cards

Infos about DX 12 (WDDM 2.0) support:

Which NVIDIA GPUs will support DX12?

Hope this helps.

Last fiddled with by Ralf Recker on 2015-08-09 at 07:09 Reason: Added another link.
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Old 2015-08-09, 13:57   #6
cardogab7341
 
Mar 2013
Dallas, TX

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Quote:
Originally Posted by Ralf Recker View Post
This explains what is happening. I am mixing the Kepler and Fermi gpu's and only one will load properly. I'll have to wait until Nvidia supports WDDM v.2.0 for the Fermi cards. For now, I have rolled back to win7 and everything is working again. Thanks for the links to the explanation.
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