[plug]: weird box behavior

[Craig Ringer]

> You could also be looking at an under powered/non AMD approved/dodgy power
> supply. Have you tried swapping it with another ???
Darn good point. I do have  a spare ATX power supply, old (2 years) but 
decent quality. Might try installing that.

> We are assuming that there is no over-clocking going on here/wrong chip
> voltages set etc.
ITS A SERVER. Come on...
I've tried under-clocking it though. No luck.