mining on low settings getting 107.5mh/s at 60c core with nicehash os but how can i see vram temps i think the backplat is too hot when i touch
How about power consumption?
Did you lowered the power limit?
3080s and 3090s are hot, specially on the memory, you can put a 120mm fan blowing air into the backplate, it helps a lot to reduce the temperature
Some people even put heatsinks on backplate, but a fan should be enough
You can find a lot of content if you search on google "reducing memory temperature rtx 3090", some people make a new backplate, some changed thermal pads, you can read to understand better, about safe temps to mine, but again, a simple fan can help you reducing temp