Topic: ASRock H81 Pro will not accept more than 2 GPU's (Code 12) - page 6. (Read 4189 times)

HAVE YOU SET THE PAGE FILE TO >16GB?

At device manager >> choose show hidden device aand delete all of gpu that hidden there. And then restart windows.

I've opened a support case with ASRock as something just doesn't seem right here.

Even though I have disabled the on board GPU I'm still seeing it in device manager, if i disable then the one 1050ti with "no resources" briefly goes into a normal state but then back to Code 12 following a reboot.

Thanks for the swift reply

Neither BIOS (1.20 or 1.30) seem to help
iGPU makes no difference
Render standby and sound are both disabled
Chipset driver up to date and installed
I've fully cleaned with DDU twice now
All three cards through risers on PCI 1,2 and 3, also tied connecting the GPU in PCI2 directly to the PCIe 16x on the board.

There is no need for custom Bios , P1.20 is fine.
If you use powered risers do not use 4 pin Molex onboard.
You can use the iGPU or not up to you, i'm running 5 and 6 cards + igpu with this board.

Disable Render stand by in mainboard bios.
Disable sound in mainboard bios.

Is your Chipset driver installed?
Remove GPU drivers in safe mode with DDU.
All cards are connected through risers? Or do you plug in one card in PCIe 16x?

Hi All,

Pretty new to mining but have years of "Techie" experience and this issue has me stumped. I've read through every related forum post on this issue and have been troubleshooting for days but the issue still persists.

The issue is that Windows (or any other OS) will not accept more than 2 GPU's at the same time, any more and I get the following error "This device cannot find enough free resources that it can use. (Code 12), If you want to use this device, you will need to disable one of the other devices on this system."  

Specs:
ASRock H81 Pro R2.0 BTC
Intel Celeron G1840 Haswell Processor. 2.8 GHz. LGA1150. 2MB Cache
Corsair 4GB DDR3 1600MHz
SanDisk SSD PLUS 120 GB
3 x Gigabyte Nvidia GeForce GTX 1050 Ti G1 Gaming 4GB GDDR5
EVGA 1000 GQ, 80+ GOLD 1000W PSU
6x 1x To 16x Extender Riser USB 3.0 Power Cable Bitcoin Card Adapter PCI-E

What I have tried so far:
Tried an updated / custom BIOS that added "enable 4g encoding" v1.2
Tried latest BIOS, selected PCI as the primary display and not the onboard, selected GEN1 and GEN2 (neither made a difference).
Complete power off, install first GPU, install drivers - power off, install second GPU, install drivers - and so on
Latest Nvidia drivers and then the second most recent (388.13, 384.76)
Had a spare GTX750TI knocking around and it wouldn't accept that as a third card either.
Tried adding additional power via the two molex ports on the M/B.
Removed CMOS battery and reset via the jumper.
Disabled onboard GPU via device manager

I've tested each GPU individually and all PCI risers and can confirm all are fine and working correctly.

I'd really appreciate any help here.

Thanks,

Flyer