Biostar A520MH Manual page 18

PANEL1: Front Panel Header
This connector includes Power-on, Reset, HDD LED and Power LED connections. It allows user
to connect the PC case's front panel switch functions.
PC-SPKR1: Chassis Speaker Header
Please connect the chassis speaker to this header.
TPM: Trusted Platform Module Header
This header allows you to store cryptographic keys that protect information.
18 | Chapter 2: Hardware installation
Pin Assignment Function Pin Assignment
1 HDD LED(+) HDD
LED
3 HDD LED(-)
5 Ground Reset
Button
7 Reset Control
9 NC NC
Pin Assignment
1 +5V
2 N/A
3 N/A
4 Speaker
Pin Assignment
1 F_LAD0
3 F_LAD1
5 F_LAD2
7 F_LAD3
9 L_FRAME_N
11 SER_IRQ
13 CLK_RUN_N
Function
2 Power LED (+) Power
LED
4 Power LED (-)
6 Power Button Power-On
Button
8 Ground
10 NA NA
Pin Assignment
2 +3V
4 +3V
6 TPM_24MHZ
8 GND
10 NC
12 PLTRST_N
14 +3V3_DUAL