hello hope some one here might be able to come up with a few sugestions. was called out to friends son's pc as he said his mouse not working, got round there and tried new batteries nothing (its cordless usb)ok try keyboard nothing, change batteries in that, nothing. so get my spare keyboard and mouse P/S2 type and plug them in turn pc on still nothing, get no bios errors about missing keyboard or mouse. try to enter bios nothing keyboard / mouse still not working.turn off reset bios to default by moving jumper and then reboot, get bios checksum error press DEL to enter bios or F1 to continue but can't as keyboard still not working. reboot and try the usb keyboard and mouse again same problem. am stuck now any suggestions. when usb mouse plugged in there is no optical light on the underside of mouse.the only other thing to mention is that he was trying to install a cheap creative web cam and as usual didn't bother to read the manual so he plugged in the webcam before installing drivers,even though there was a big bold warning on webcam and onthe instructions that you must install drivers 1st, but i cant beleive that this would have taken out the P/S2 ports. the motherboard is an MSI socket A sorry forgot the model no.
thanks for yor replies but as stated in my post i have reset the bios to defaults by moving jumper and no keyboard doesn't work in bios because you cant enter it. thanks bez for your helpful sugestion going to try that now.