Front Panel Header (Cn5); Gpio Header (Cn6) - AXIOMTEK IMB502 User Manual

IMB502 LGA1151 ATX Motherboard
2.4.2

Front Panel Header (CN5)

This is front panel header (7x2-pin p=2.54mm).
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
[*]
connected; the external speaker on chassis will be active when pin 2 and
pin 4 is open.
Note
2.4.3

GPIO Header (CN6)

This header (5x2-pin p=2.00mm) is for digital I/O interface.
Pin Signal
SIO_GPO74
1
(0xA06 Bit4, H)
SIO_GPO75
3
(0xA06 Bit5, H)
SIO_GPO76
5
(0xA06 Bit6, H)
SIO_GPO77
7
(0xA06 Bit7, H)
9 GND
[*]
output is 5V. The GPI or GPO and High or Low level can be selected with
BIOS setting.
Note
12
Signal
Power LED+
[*]
SPK-
GND
BUZZER
Power LED-
N/C
N/C
[*]
SPK+
PWR-
PWR+
RESET-
RESET+
HD LED-
HD LED+
: The buzzer on motherboard will be active when pin 2 and pin 4 is
Pin Signal
SIO_GPO70
2
[*]
(0xA06 Bit0, H)
SIO_GPO71
4
(0xA06 Bit1, H)
SIO_GPO72
6
(0xA06 Bit2, H)
SIO_GPO73
8
(0xA06 Bit3, H)
10 GND
: "H" or "L" means the default voltage is High or Low level, and GPIO
Board and Pin Assignments