Did you try cleaning the heasink of your GPU? It might be a memory overhead problem… The temperature reportedto HiveOS on nVidia is only the GPU temp, not the memory’s
unfortunately, no. try removing the GPU and running it on a test rig…
in the past, i used PhoenixMiner on my nVidia rigs - a lot of times i would get crashes or invalid shares. i switched to TRex miner - i now get 3-4 invalid shares / week on some cards (not all - there are certain cards i have identified which keep on having more invalid shares than others) but, overall, it’s more stable. Lowering OC settins does not help, but keeping the cards as cool as possible did help (less invalid shares). So, i cranked up the fanrates.
I’m not endorsing TRex miner, i’m not blaming PhoenixMiner, just sharing what i know.
i got a lot of invalid share / day i was using Trex miner since a couple month ago, but now the invalid share is too much than before. my GPU Temp is 53-55 now.