After shutting down, my computer will not power-on again unless I unplug the power-cord, then plug it back in (or use the psu on/off switch).
I have tried changing PSU, same thing happens.
My guess it has to be related to my motherboard.
I have the latest bios. I have reset the bios.
This happened after upgrading to a opteron 180 cpu. But I'm not sure if its related.
I have tried disconnecting the RAM, harddrive, graphics card to no avail. Also tried refitting the power-button cables.
Computer is rock stable once its on ...It powers on fine if I switch off the PSU with the button that is located on the psu, or pull out the power-cable before turning it on.
Any ideas what might be causing this?
Epox 9npa+ultra motherboard, amd opteron 180 (939), win xp sp3, 2gb ram