I have 8 RX580 cards, run the latest HiveOS, mining on ethermine pool and with teamredminer.
I don’t know how to explain the issue better but it seems to the more GPUs I add to my rig, the more unstable it becomes.
For example, if I mine with GPU 1, 2, 3 the rig is stable, each GPU running at 30MH/s, same if I run GPU 4,5,6. The same of course applied if I run 6,7,8.
But as soon as I connect all of the GPU 2 becomes unstable, meaning as the miner starts this GPU mines at 0MH/s and the rig crashes a few seconds after starting. I lowered all the OCs for all GPUs, even set the GPU back to factory settings but the issue prevailed.
Yes, I did. I added one GPU at a time and let it mine for 20+ minutes each time, Hashrate was stable and no invalid shares at any step. Disabling CSM, I am actually not sure if this has been done already, I will be back home in around 5 hours and will check the BIOS settings. Thanks for the effort to help me in the meantime!
It remains completely stable until I add 3-4 GPUs. If I mine with 5-8 GPUs the rig keeps on mining but each GPU will be more sensitive to OC settings and will mine 2-7 MH less than it did before. And as soon as I add the 9th GPU one of the GPU completely stop mining with all miner I tried (Ethermine, nano miner, teamredminer). It will basically show 0.00 MH for 1-2 mins until it crashes, which in redlined means “GPU dead”.
I just played around with all mobo settings, I use Gen1 Speed, mining mode is enabled, above 4G coding is enables and CSM is diabled.
Besides I just flashed the problematic GPU with another RX 580 with Hynix memory BIOS that worked fine and now I can still enter the BIOS but the OS won’t boot normally, it just shows a black screen and will reboot 3-4 mins after powering on, but I have a feeling I can fix this issue. I will play around with the settings tomorrow I have a feeling I can fix it by just trying enough.
Managed to fix it, but the old problem still remains, at least 1 of the 9 GPUs will always show hashrate of 0.00 MH and die soon after booting the rig.
I reset all the PCI slots to Gen 2, then Gen 1, then to auto, but that doesnt seem to be the reason.
Then I tried to downset OCs, but neither that worked, no matter how low I set it, also running the GPU at stock settings didn’t solve it.
I am really running out of options to make any alterations…
Here you can see my current OCs. I tried with higher and lower OCs, but that didn’t help. I am using amdmemtweak – REF 30, but I tried without to exclude this as problemfactor, which didn’t help. (upload://jApRe2kSvXjw3loG03wbiENHgkz.jpeg)
