then its probably a power or memory related problem.
You put your MOBO into sleep (suspend) mode and when you wake it up it immediately crashes and reboots the machine?
When you can find no obvious reason for this as All Bios and XP settings are set as they should be.
And when you go to the MOBO manufacturers website and there is no mention or hint of any bios updates. And when this is one of the Popular P4 mini ITX Mobos out there?
Don't you just love it?