I am running a Antminer L3+ on litecoinpool.org and currently running /#xnsub is it better to use it or should I remove it thanks ?

Also I only get HW errors on hash board 4 I have adjustable DC supply tried 12.0vdc to 13.0vdc no difference so I set it back to 12.3vdc anybody else have this HW error issue only on one board ? I am thinking its bitmains no good firmware again!!!!!



any help would be app.