Hey guys, I'm having a bit of a problem with one of my rigs. This board seems to be trouble lately, and I'm not quite sure why...
I have an RX 480 and 2 R9 380's on this rig, one in slot, the RX 480 in a slot, the 380's both on powered risers.
For some reason, after about 20 mins of mining, I keep getting the "GPU Thread Hangs" error. Unfortunately, it isn't restarting on it's own, so I have to be lucky to notice. I've tried undervolting, underclocking, etc. I've gotten it to go for about 2 hours, but the threads keep hanging. Then I thought maybe it was because I'm mixing cards. So I disabled the the RX 480 and had only the 380's mine. Same problem. I disabled both 380's with only the RX 480 mining, same problem.
I just tried lowering power limit % on all the cards by ~5% and lowered clocks to see if they'll run stable. Only time will tell I guess. Same thing was happening when I previously had a 390 and a 380 on this board. But I moved those to my main computer, mixed cards and all, no problems. Sometimes hangs once a day on all my rigs, so that still sucks. But I stay pretty much on top of them. But this one board just perplexes me. I think it may have something to do with the power delivery or something. I got it used, and it was fine for a while with Ethereum mining, but then it started acting up, and is now on Zcash as well. It appears to be more like a Phenom-era AM3 board, using a Sempron 145. I've pretty much ruled out any kind of CPU bottlenecking, as it does mine at proper speeds... Until it hangs.
Any suggestions?
