One or to GPU may be problematic and cause miner to restart or no booting . It needs to disable to run rest of GPU s atleast.
How yo do it using settings or OC
First of all identify the gpu and the number it has in HiveOS e.g gpu3
Then go to your flight sheet and edit it, go to Miner/ Setup Miner Config
After go down to Extra config arguments and hover over the info icon and usually it will tell you about device ID’s. Click on it and change the ID’s to whatever gpu’s you want to mine with.
Then save it and update your flightsheet