pro? Did you do the coldbug mod before your board died?
I lost 2 boards and a cpu after doing the coldbug mod.
Benched about 5 hours before the mod came out. Did the hicookie mod and then after 30 minutes benching the board just died.
Got a mate that did the same thing and his board also died.
Both boards just loops like when you make some settings that the board can't boot with.