Biostar B450MX - Page 15

Chapter 2: Hardware installaon | 15
B450MX / B450MX-S
PANEL1: Front Panel Header
This connector includes Power-on, Reset, HDD LED and Power LED connecons. It allows user
to connect the PC case’s front panel switch funcons.
Pin Assignment Funcon Pin Assignment Funcon
1 HDD LED(+)
HDD
LED
2 Power LED (+)
Power
LED
3 HDD LED(-) 4 Power LED (-)
5 Ground
Reset
Buon
6 Power Buon
Power-On
Buon
7 Reset Control 8 Ground
9 NC NC 10 NA NA
PC-SPKR1: Chassis Speaker Header
Please connect the chassis speaker to this header.
Pin Assignment
1 +5V
2 N/A
3 N/A
4 Speaker
SATA1 (SATA1_U/ SATA1_L)/ SATA2/ SATA3: Serial ATA 6.0 Gb/s Connectors
These connectors connect to SATA hard disk drives via SATA cables.
Pin Assignment
1 Ground
2 TX+
3 TX-
4 Ground
5 RX-
6 RX+
7 Ground