Usb ports are not working

[Gator1968]

None of my USB ports are working, I cant get into my computer at all. I checked to devices on another computer and they are fine. I have a Dell Optiplex 745 system with XP. Can anyone help

 

[fpsdominator]

What do you mean by "i cant get into my computer at all"?

 

[dokk2]

Use the bios jumper on the mobo set back,enter fix it your way..