After building my new PC, I thought I'd try a bit of overclocking. Everything seemed OK until I dropped the CPU's multiplier from 9x to 8x and upped the FSB to about 420, when it booted into Windows OK but then shut-down after a few seconds of running Orthos.
At first I thought the problem was with the CPU or mobo, but I tested with a new CPU and the problem still existed. It's possible the problem is with the mobo, but when I tested the PSU outputs with a multi-meter I only got a 2.97V output, with all the others being 0V.
I remember hearing what might have been a pop when the system shut-down, which might be a fuse blowing (if indeed the HX 620 has fuses ?). I am now RMA'ing for a replacement.
My question is - what could cause the PSU to blow a fuse and fail given that upping the FSB to 420 should not have caused the HX 620 any problems ?
Because I'm not sure exactly what caused the problem, I am also RMA'ing the mobo in case there is some problem with that.