Miner stops after 15 mins on HIVE OS

Hello Everyone I’m connecting a new rig with 2 3060ti and 1 3070 on hive os via Ethernet cable But somehow after 15-20 mins the rig automatically shows offline and on the display monitor the miner(display) is hanged. OC settings are attached in the screenshot

Also if someone can suggest me the best miner for Raven Coin on Hive OS (also the OC’s)

Any solutions for this??