Quote from: jackbox on May 03, 2017, 04:15:59 PM

Quote from: tribrzinec on May 01, 2017, 02:39:59 AM

Hello mining community,

I would like to ask for some help. Recently bought a mining rig 6x RX 480

https://www.mindfactory.de/product_info.php/8GB-PowerColor-Radeon-RX-480-Red-Dragon-Aktiv-PCIe-3-0-x16--Retail-_1124443.html

I am using Biostar TB85 motherboard, 12 GB RAM, EVGA 1300w, 120ssd, intel celeron 2x2.8GHz, windows 10 64.

I have this problem. On minute after I start claymore miner hashrate on one card drop to 0 and I get report - GPU hangs in opencl call - Need to restart miner.

I am searching for solution for couple of days already.

- I tried different GPU drivers, if I try to install 17.3 or 17.4 crimson computer crash.

- Virtual memory is on 16GB.

- If I start a miner without this card which lost hashrate then same thing happen to other 5 cards, hashrate drop to 0 on all 5 cards.

- I reinstall windows and all drivers, still same issue

- I switch cables and cards, nothing positive happen.

- tried other miners, pools, old version of claymore miner..

- tried function -gser -eser

Tried probly everything i could find on google, still no solution. Not sure if that is specific problem of motherboard, graphic card? other parts are more or less standard mining parts and probly have nothing to do with that problem.

Hop someone can help or give any proposition what should I do or try.

Thank you

Best regards

It is because you did not set your virtual memory. Go into system, advanced settings and change virtual memory to 16000MB like the program tells you to do if you are mining on multiple cards. If you don't do that you get the Open CL hang error, the miner tries to restarts and it just hangs.

Since yesterday I started to get also hang on OpenCL. And I have set virtual memory to 32000MB, so it should be far enough. Have no idea what is causing it. I am trying now the problematic GPU to run on higher stock voltages on core and mem to see if it helps.