Re: Random reboot & keyboard trouble
Try resetting your BIOS.
On old motherboards.
(Unplug your CMOS battery, wait a minute... plug it back in.)
On newer motherboards you can use a jumper or push a button to reset the BIOS.
That should get your keyboard working again, otherwise you probably have a dead/broken hardware problem.
If resetting your BIOS doesn't work... The section below probably applies.
Open your case and get a good sniff, if it smells like burnt plastic or fried electronics... Then my money's on dead mobo, possibly caused by old age, or by a faulty PSU frying everything.