Acer 5100; No response from keyboard, touchpad, or USB devices

My brother's Acer 5100 laptop recently lost all keyboard, touchpad and usb functionality... all don't seem to work. I searched on Google for about 10 hours total for solutions and I still don't have a fix for it. It's an Acer 5100 Laptop running Windows XP Home Edition.

Unable to enter BIOS at start-up by pression F2 (keyboard does not work)
USB keyboard and mouse do not work either

This is what I've tried already to no avail:
-Unplug A/C cable, remove battery, reconnect A/C cable (did not work)
-Unplug A/C cable, remove battery, hold power button for 1 minute, reconnect A/C cable (did not work)
-Tried start-up without hard drive to 'get into BIOS'? if i'm correct (did not work)
-Tried a hard drive from another laptop (did not work)
-Jump the J2 breaker underneath the RAM stick, read it would reset the BIOS (did not work)
-Jump the CMOS battery, read it would also reset the BIOS (did not work)
-Checked the keyboard and touchpad connections under the keyboard, both are secure
-Tried the keyboard on another laptop and works there, the keyboard from the other laptop does not work on this laptop
-Tried start-up with linux ubuntu in CD-ROM without a hard drive, as read online (CD booted up and got to a ubuntu screen, but still no keyboard or touchpad response
-Scaned the original hard drive for viruses using a 2.5" external hard drive reader, no viruses found by AVG Free 9.0
-Original hard drive does work on another acer laptop

This is all the steps I've tried so far that I can remember from the past few days of troubleshooting. If anyone knows of a fix for this, help would be greatly appreciated.

Thanks in advance... CJ