I lucked (but is it really?) into 8 new 6600XT GPUs at $450 each, had an EVGA SN 1000W P3 PSU, a 240GB SSD and some spare ram so bought one of these boards, a cheap i3-9100, a 12 GPU frame, some PCIe Y adapters and some risers. Created a HiveOS account and built my first mining rig… 3 weeks ago. I had about every error you could think of and fought every GPU and this board to no end.
My problem and what I realized after hours of beating my head against the table was… RISERS SUCK! I bought no less then 5 different brands of risers and things would work then fail none stop. Finally I ordered what looks to be the same thing as the GPURisers site carries off Amazon. 8 caps, white or black, 6 risers, USB and the small cards… no sata power cable. Ubit is the brand iirc and $45 bucks for 6 after the discount. I bought 2 packs. Cards slid in the shielded slot easily and the locking mechanism is much better then that stupid sliding thing on all the cheaper, problematic ones.
Plugged in all 8 cards, reset and made the required BIOS changes, booted and no more errors! Those risers could be twice the price and they would still be worth it not to have to fight all the issues.
Been playing with the clocks… something I haven’t done before, and its stable now with these settings. 4 are Sapphire Pulse cards which I had at 32MH @ 48V on their own but after adding the 4 ASRock cards I haven’t been able to get then stable at that voltage unfortunately. Still working on it though. Need to add some rack fans and get it down in the cooler basement soon.
