I managed to do that once after flashing the BIOS for the wrong board, back when the EEPROMs were in DIP sockets. Another time I was less lucky and broke an e

I managed to do that once after flashing the BIOS for the wrong board, back when the EEPROMs were in DIP sockets. Another time I was less lucky and broke an edge off the CPU die while installing the heat sink. This was during the time when the CPUs had exposed silicon with no metal lid. Instant dead CPU, expensive mistake for a college kid.