Overall I'm happy for now about my L3, in particular that it's batch 1. After more than one month of mining on NiceHash by my L3 it dropped one time one board, so I restarted it once a week with the hope it will help prevent dropping board. Now after 10 days I'm going to wait for how long my L3 would works without dropping board. I watch and I will let you know about my result.
Screen shot after 10 days.