Previous transistor did great fireshow and took a bit textolite with it.
And there were few more accidents in the past, so board seen some shit in this life.
Let’s start replacing transistor.
Need to drill one more hole:
Opps… it was too deep, I’m in the water block… found some water deposits… Okay, liquid thread locker with the screw will make the hole airtight.
It was too cold on the aluminium «arms», moved transistor right at the heater:
Result:
Thermal interface:
Setting bias:
It’s alive again:
