**********************************************************************
This is the pin assignment of the PS/2 mouse port on ASUS motherboard.
You can make the cable by yourself or purchase it from ASUS dealers.

Mouse Port       DB9-Connector(#)  PS/2 mouse-Port  Signal(*) Signal
  Asus                 (corrected)    Connector             (corrected)
  1                  5     5             2           GND       GND
  2                  9     4             3           CLK       DATA
  3                  -     -             -           NC        NC
  4                  8     8             5           +5V       +5V
  5                  1     7             1           DATA      CLK
  6                  -     -             -           -         -
  7                  -     -             -           -         -
  8                  -     -             -           NC        NC
----------                              3 4
 1234              12345                + +
 ++++              +++++              2+   +5
 +  +               ++++               1+|+6
 5  8               6789                 |
                                    (front view)

Source: c't magazin fuer computertechnik, okt 1994. page 272.

(*) Please note that the connection from onboard PS/2 mouse port to the
    mouse connector is correct but the singal label is wrong.
(#) Based on information from Harald Gattringer. See following.

Jerry Lee
ASUS