Front Panel Header (Cn24); Gpio Header (Cn25) - AXIOMTEK IMB523R User Manual

2.5.3

Front Panel Header (CN24)

This is a front panel header (7x2-pin p=2.54mm).
Pin Signal
1 Power LED+
2
SPK-
3 GND
4 BUZZER
5 Power LED-
6 N/C
7 N/C
8
SPK+
9 PWR-
10 PWR+
11 RESET-
12 RESET+
13 HD LED-
14 HD LED+
[*]
connected; the external speaker on the chassis will be active when pin 2
Note and pin 4 are open.
2.5.4

GPIO Header (CN25)

This header (5x2-pin p=2.00mm) is for digital I/O interface.
Pin Signal
1 DIO1
3 DIO2
5 DIO3
7 DIO4
9 NC
The default value of DIO1 to DIO8 is set as GPI with high level.
Note
Board and Pin Assignments
IMB523R / 524R / 525R LGA1151 ATX Motherboard
[*]
[*]
: The buzzer on the motherboard will be active when pin 2 and pin 4 are
Pin Signal
2 DIO8
4 DIO7
6 DIO6
8 DIO5
10 GND
1 3 5 7 9
2 4 6 8 10
15