Post
Topic
Board Mining (Altcoins)
Re: ASRock H81 Pro will not accept more than 2 GPU's (Code 12)
by
Sn1p3r
on 22/12/2017, 00:21:00 UTC
hi, guys.

I have same trouble. but this method can remove it in my case.

make new key "HackFlags" as (DWORD 32) type value 0x600 600 as (Hex) in
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\PnP\Pci\

and reboot.

ty

update:
Sorry. That's right. I made a mistake in expression.
Since this is a "32bit value", the "numbers of zeros" after "0x" has significance.

See source information.
https://support.microsoft.com/en-us/help/942959/error-message-when-you-attach-a-pci-express-expansion-chassis-to-a-com

Correct screenshot is here.
https://bitcointalk.org/index.php?topic=2307023.msg24696485#msg24696485



You sir are my hero!

Well I did a little bit digging for this issue and I can confirm 100% that it's cause by Windows Update 1709, and this helped my issue.
I had 6x 1060 GB cards, and I had two not working.

After I applied that one started to work, and just went to Device Manager disabled HD Audio for the second graphic and it magically started to work! Smiley