On Friday 21 September 2007, Billy Crook wrote:
There is less to go wrong with the PS/2 ports than there is with USB. Some BIOSes will not recognize USB keyboards. If you have USB-to-PS/2 emulation available, and enabled in the BIOS, the USB keyboard will be translated to i8042 (PS/2) in hardware, and will appear to the BIOS, and whatever OS you load, as a standard keyboard. It is best though to physically use the PS/2 port for your PS/2-capable devices.
I have a system that has PS/2 ports, but only the USB ones actually work...