Hi All. I am a newbie and have been mining for about 3 weeks. I'm using Claymore v9.3 on Windows 10 64 Bit. My issue is that if I put any sort of stress on the machine at all, It crashes. And it is consistently "GPU 3 hangs in opencl" that causes the crash. What I mean by stress is if I try to dual mine anything, increase the difficulty setting, or overclock the GPU's.

I have 6 XFX RX 480 8gb Black Edition cards. I have modded the BIOS on all 6 cards copying the 1750 timing strap to the 2000. I am using the Crimson 16.12.2 video drivers. The most stable setup I have is when the difficulty is set to 8 on cards 0,1,2,4,5 and 7 on card 3. Using MSI Afterburner I set the voltage to 0, the core clock to 1,100 and the memory clock at 2,000. The fans on all 6 cards is set to 85%.

With all the above settings I am getting aproximately 27.7 mh/s from each card and a total of 166 mh/s. It takes approximately 14 hours to mine .1 ether using ethermine.

I would really like to dual mine and/or get my cards up to 30 mh/s but like I said, anything I try causes GPU3 to hang and restarts the machine.

As for the rig, It is open air with a HP 1200 watt power supply for the six cards and a Thermaltake 850 watt power supply for the mother board and PCI Risers. Riser 1 and 2 are powered by daisy chain 6 pin cable, as are risers 3 and 4. (2 cables, 2 plugs each). Risers 5 and 6 are powered by 6 pin to SATA adapters connected to a SATA daisy chain cable.

Any theories why I can't push this setup any further?

Thank you for reading.

Brian