3060 have hashrate limiter for ethereum. Try lolminer for cca 38MHs in linux(HiveOS). Or Windows - driver 470.05, HDMI or DP or HDMI dummy and at least PCIe 3.0 8 lines for 48+ MHs
This advice is valid for 3060 cards with limiter version 1 only.
yeah i just remembered , the dude is right. these 3060s want to be connected to a Monitor and PCIe slot to work properly. they are fooled by the HDMI dummy but for the PCIe the only solution is to buy big motherboard. at first i thought you bought the new edition cards with LHR.
Use miniz miner. You’ll get around 40 without needing any dummy plugs and risers work no problem.
You need driver 460.39 tho. So run this command: nvidia-driver-update 360.9
Then give it a while to update and then it should unlock up to around 40mhs ethash. Doing this with 6x3060s right now.