Compaq Presario 5BW472

Looks like the end of the road for our *trusty* Compaq Presario 5BW472.  Ever since Windows ME was reinstalled on it, the mouse went crazy.  Every time you'd move the mouse pointer it would move off in a different direction.  It was like moving the mouse over a slippery terrain and never knowing what the terrain was like.  Other times the mouse pointer would just freeze into place and the only way to navigate around Windows was through keyboard shortcuts.  Well today I decided to take a look at it and unfortunately I broke it even more.  I repeat, I broke it even more.  The machine won't even get past POST.  Stuck at the Compaq boot up screen.  Tried clearing the CMOS BIOS using jumpers and taking out the backup battery.  That made it worse as it now has to count up the RAM before fuxoring.  Tried unplugging all the I/Os but still fuxoring so it's nothing to do with the devices stopping the POST.  Trying to do a BIOS recovery flash but Compaq seems to have cleverly disabled that feature ...

Yay for 4 years of Computer Systems Engineering!