Thought my experience might be helpful to some:

My Commando crashed badly at 3dmark benching and I thought it was gone. Voltages screwed, cpu init etc. I let it reset for 24h, didn't help much. I managed to re-flash the 0803 bios with afudos, still the same problems. Tried about any other trick in the trade.

I already got a new board but before sending the old one to rma, I tried the following:

I used Ez Flash to flash to bios 0801 and after reboot flashed back to 0803.

That worked, and now the board is running better than ever.