Thank you Taff for your response, I have swapped PSU to one that is ok but result is the same, no 12v power,I also used defective PSU on another mainboard, again same results. I am beginning to believe both PSU and Motherboard are naff.The PC is an eMachine model 620. PSU Bestec 250w-modelATX-250-12e-REV52. I run a Computer Forum for the over 50s so your input has been a great help as the PC is one of our members. Thanks , Cockle
There was a problem with the Bestec Power supply in the eMachine 620 which is well documented. When it blows it takes out the motherboad too. It`s quite an old model now but I can assure you that if it`s like the one I tried to fix 18 months ago it`s a gonner. It will probably have blown your keyboard and mouse too. (Try them on another PC)
Anyone want a set of recovery discs and a manual for this machine by the way?