I have a very silent PSU, with a on/off switch on the psu itself. On a few occasions I have got electric shock when removing the power cord from the unit. Something is definately not as it should be.
Last night, as an attempt to silent the unit from ground noise, I made a power cable without grounding. All I achieved was to delete the flash memory,

I believe I have to replace the power supply to get any further. Does anybody know if it is a standard computer PSU?
Neb