Bitcoin Forum

Hey guys,
funny things happening with my new rig and I just cant get the hang of it.

So first of all here the specs:

Mobo: ASRock H81 Pro BTC R2.0 Intel H81 So.1150 Dual Channel DDR3 ATX Retail
CPU: Intel Pentium G3260 2x 3.30GHz So.1150 BOX
RAM: 4GB G.Skill Value DDR3-1600 DIMM CL11 Single
GPU: 4x Sapphire Radeon RX 560 Pulse 4GD5 Aktiv PCIe 3.0 x16 (Retail)
PSU:   850 Watt be quiet! Power Zone Modular 80+ Bronze
HDD: HGST 7ZK500
OS: Win10
Riser: all active risers with active power supply

Okay getting started, after booting up the OS I can start the tweaking tool for my cards and it won't show me more than three gpus, looking into the device manager one of them is shown with error code 12 - not enough ressources available.
When I start to mine I'll just get the three GPUs shown working.
Then I thought well maybe the PSU doesn't feature enough power so just lets take one GPU out and test the thing again.
Now it shows three GPUs in the decive manager but one with error code 12.
Same goes for the miner.

I've already switched tried out different ports, different raisers, different cards it just doesnt work.

So it doesnt matter how many GPUs I add to the rig, there is always one which gets the error code 12.
And it is not always the same PCI slot which is shown sometimes it is PCI2 sometimes it is PCI3 - pretty random actually.

Any ideas?

Have You enabled PCI-E GEN1 (also try GEN2) from the motherboard's BIOS? Also, have you set your virtual RAM to 16-24GB?

Have tried both GEN1 and GEN2, both didnt work.
Also I can't find an option in the BIOS to set virtual RAM to 16-24GB.

http://www.x-plane.com/kb/increasing-virtual-memory-on-windows/

Tried that and it isn't working either.

I think this was actually supposed to say virtual memory. And you set in windows not BIOS. If you have graphic card on motherboard try turning it of as well as all other extras you can in BIOS.

I've turned off all other devices in bios which I could - besides the LAN- and don't have an option in bios to increase the vram. At least I don't find the option for the A stock h81 BTC pro 2.0.

I have a very similar config with 6x 560 on this board. did you disable onboard igfx and audio, is win10 installed in uefi mode?

Audio is definitiv disabled, onboard igfx not sure, will check it tomorrow at home (currently at the nightshift). Win10 is installed on uefi mode.

Yeah, meant virtual memory! :)

Hey guys,
trying my luck today and does anyone else has an idea what the problem could be?
Cheers.

Just a wild guess but maybe you have another CPU with 1150 socket. I have seen multiple topics with this "error code 12" and a lot of them have been using this G3260 CPU, for example https://bitcointalk.org/index.php?topic=2307023.0

Also, are you running the latest BIOS on your mobo?

This is one of the most annoying errors. Also try to disable and enable the GPU with the error in the device manager.
Switch the pcie lanes, try GEN1/GEN2. The H81 also has a mining specific option in the BIOS try to enable/disable it.

Running 5 Cards + iGPU and 6 Cards + iGPU with G1840 CPU without any probs.

Bios up to date? Latest is P 1.20.

Running 5 Cards + iGPU with G1820  and no problems

I had the same problem and was the "virtual memory" ( i call it page file or swap file.... ).
Try this commad in to powershell if the value is lower than 16256 you didn't set it correctly.

Command:
Get-WMIObject Win32_PageFileSetting


Output example:
PS C:\Users\admin> Get-WMIObject Win32_PageFileSetting

MaximumSize Name            Caption
----------- ----            -------
      16256 c:\pagefile.sys c:\ 'pagefile.sys'

lol,

Don't feel bad, I have the same board and I'm having issues also.  I was usually using biostar which I just plugged in the risers, cards, booted and it worked great.  This board was cheaper so I figured I'd give one a try.  I played around with this board for about 2 hours and put it back in the box for a different day....

I found the Z270 to be fairly easy to set up compared to the H81 Pro.
But the Z270 is also a different price category.

you must to enable 4g encoding

Hey,
Am back after a long nightshift.

So I've tried this out and it says 16256 is allocated.
Still not working.


Regarding the "enable 4g decoding" the bios doesn't feature that option, since it should be preconfigured for mining.

I still don't understand why three cards work when I plug in four, but only two cards work when I plug in three...
Strange thing.

update the motherboard bios and try again

the bios is on version 1.20 which should be the newest one.

Perhaps the problem with the BIOS of the GPU or driver. I had a similar problem when I used the GPU with the native BIOS and upgraded the BIOS. Perhaps your installation is automatically updated the driver and now there is a hardware conflict. In any case, miracles do not happen and you need to understand. First my setup retuned my friend through teamviwer for 2 days.

Still I don't understand why there is always one GPU not working.
3 of 4 work fine and if I take out the fourth only 2 of 3 work...
Thats whats bothering me.

This was posted in this forum for similar problem ( it's about bios settings ) :
https://www.youtube.com/watch?v=H-Ttlv9Sg28

Do you have connected both the 2  4-pin power PCIE connectors right?...i think you did but...

If it doesn't work i would reset cmos reinstall OS, modo driver and then add 1 card, reboot, add another and so on...

bcdedit /set pciexpress forcedisable

It's me again.
Yes the extra power supply is connected - even though it shouldn't matter with active risers but I just wanted to make sure.

Also tried the bcdedit and that didn't help either - sadly.

I'm really thinking about setting up the whole darn thing from scratch again.
Have to go to the next shift now and hope somebody else still has some ideas.

It seems that AsRock mining MOBOs are a gamble to get nowadays :P
I just received one of my boards ( H81 Pro BTC R2.0) from warranty today (took 1month + some days).
Got completely new board from AsRock, the old one did not even POST (was completely new board).

Hope You get Your rig up and running!