am concerned about the FOUR failed Hard Drives in a year.
What were the failures, and could the hd's no longer be used, if so, why?
If the psu is responsible for this, it suggest spiking higher voltages (anyone else have thoughts?) and should be binned soonest.
However, make sure you have adequate backups when the new psu is fitted 'just in case'.
Good Luck - Keep us posted.