User`s manual

VIA KT133 ATX MAINBOARD HARDWARE SETUP
3-8
3.3.6 CN1/CN2: PS/2 MOUSE AND KEYBOARD CONNECTOR
PS/2 Mouse Connector
PS/2 Keyboard Connector
D
I
M
M
3
D
I
M
M
2
D
I
M
M
1
123
4
A
B
C
JP8
3.3.7 CN3 : SERIAL PORT COM 1 CONNECTOR
3.3.8 CN4 : SERIAL PORT COM 2 CONNECTOR
COM 2 COM 1
D
I
M
M
3
D
I
M
M
2
D
I
M
M
1
123
4
B
A
C
JP8
A = COM 1 (CN3)
B = COM 2 (CN4)
(I/O address: 3F8H/2F8H/3E8H/2E8H, IRQ3/IRQ4, selected by CMOS setup.)