Late last night I rebooted my PC and, after the initial Disk scan, presumably as the BIOS was loading, I was greeted with the following message:
"USB device overcurrent detected. System will shut down in 15 seconds"
As I need the PC for work, and was unable to get on the web to find solutions, I decided that since I still got the message with all my USBs disconnected, it had to be my mobo (someone on here is now bound to tell me it wasn't!!

).
So, this morning I went to Maplin and purchased an AMD X4 9350 Quad Core c/w a GeForce 8100VM-M5 Mobo. Oh, and also a 650w PSU.
Got everything up and running by 1.30pm.
I can't say that it's lightening fast but, before last night's problem, my PC was as quick as an arthritic tortoise walking on porridge, and it is certainly faster than that now. I suspect I may have other issues to sort out (like a defrag!).
Anyway, I've kept the old mobo processor in case it is not fubared and may be resurrected in a slave PC for my daughter.
Expensive day, but at least I'm back in production now.
