ATX PS/2 Keyboard/Mouse
Ports
The ATX PS/2 keyboard and
PS/2 mouse are located next to
the Back Panel LAN ports 1/2 on
the motherboard. See the table at
right for pin denitions.
PS/2 Keyboard/Mouse Pin
Denitions
PS2 Keyboard PS2 Mouse
Pin# Denition Pin# Denition
1 KB Data 1 Mouse Data
2 No Connection 2 No Connection
3 Ground 3 Ground
4 Mouse/KB VCC
(+5V)
4 Mouse/KB VCC
(+5V)
5 KB Clock 5 Mouse Clock
6 No Connection 6 No Connection
VCC: with 1.5A PTC (current limit)
1. PS2 KB/Mouse port for a KB or a Mouse
Cable
2. PS2 KB/Mouse port for an Y Cable
3. USB 3.0 Port 0
4. USB 3.0 Port 1
Keyboard/Mouse
(for a keyboard cable, a Mouse cable, or a Y cable) (optional)
Note:
This motherboard offers three Keyboard/Mouse connection options as
shown in the graphic below.
•1. Connect a keyboard cable or a mouse cable to the PS2 KB/Mouse
port.
•2. Connect an Y cable that includes a KB cable and a mouse cable to the
PS2 KB/Mouse port.
•3. Connect a KB cable and a mouse cable to any USB ports.