I have Zotac Amp Extreme 1070ti’s in all my rigs, I usually stick to ZClassic, Zen or Zcash...equihash, what is best OC?

I had always read  +200core  +700mem was sweet spot but my sols were kinda low so I e been running past month +175 core +800mem at 115 watts originally and now 120 wats and thinking of going up on power and drop mem to +750 or +775.

Also, they will run a week or 10 days nonstop, and then one of the rigs with get a gpu is stuck, trying to restart. Is that a crash related issue or a connection issue?

I am running 4 rigs off a 240v Delta server psu and using a little Pico amp to power motherboard and two Molex connectors and SATA the Asrock 110 pro BTC requires. I’ve had a feeling these cheap little pico amps have a little bit of occasional voltage variation and is the reason I will have occasional failure maybe once a week. Was considering buying a second small ATX psu just to replace pico amp. About how many watts just for mobo and it’s 5 required plugs, ATX, cpu, 2 moles, and a SATA?