Jaud1: Front Audio Connector; Jcom1: Serial Port Connector; Cpu_Fan1, Sys_Fan1~2: Fan Connectors - MSI A68HM GAMING Bedienungsanleitung

JAUD1: Front Audio Connector

This connector allow you to connect audio jacks on the front panel.
2
1

JCOM1: Serial Port Connector

This connector allows you to connect the optional serial port with bracket.
2 10
1

CPU_FAN1, SYS_FAN1~2: Fan Connectors

Fan connectors can be classified as PWM (Pulse Width Modulation) Mode and Voltage
Mode. PWM Mode fan connectors provide constant 12V output and adjust fan speed
with speed control signal. Voltage Mode fan connectors control fan speed by changing
voltage. Therefore, when you plug a 3-pin (Non-PWM) fan to a PWM Mode fan
connector, the fan speed will be always maintained at 100%, and that could be noisy.
PWM Mode fan connector
1 Ground
3 Sense
14
Overview of Components
1
10 3
5 Head Phone R
9
7 SENSE_SEND
9 Head Phone L
1
3
5
9
7
9
1
CPU_FAN1
2 +12V
Speed Control
4
Signal
MIC L 2
MIC R 4
6
8
10
DCD
SOUT
Ground
RTS
RI
Voltage Mode fan connector
1 Ground
3 Sense
Ground
NC
MIC Detection
No Pin
Head Phone Detection
2 SIN
4 DTR
6 DSR
8 CTS
10 No Pin
1
SYS_FAN1/2
Voltage
2
Control
4 NC