Cpu_Fan1: Cpu Fan Connector; Sys_Fan1: System Fan Connector; Jcom1: Serial Port Connector; Jspk_Sw1: Mono/ Stereo Sound Selection Jumper - MSI PRO-L J4205TI User Manual

CPU_FAN1: CPU Fan Connector

This connector allows you to connect a CPU fan, the fan speed will be always
maintained at 100%.
1
3

SYS_FAN1: System Fan Connector

This connector controls fan speed by changing voltage. You can go to BIOS >
Advanced > SYS Fan1 Control to adjust the fan speed manually.

JCOM1: Serial Port Connector

This connector allows you to connect the optional serial ports with bracket.
2 10
1
9

JSPK_SW1: Mono/ Stereo Sound Selection Jumper

This connector is provided for audio amplifier options.
Stereo
(default)
CPU_FAN1
Ground 2
Sense 4
SYS_FAN1
1 Ground
3 Sense
1 DCD
3 SOUT
5 Ground
7 RTS
9
1
+12V
Speed Control Signal
1
2 Voltage Control
4 NC
2
4
6
8
RI 10
Mono
SIN
DTR
DSR
CTS
No Pin
Overview of Components
11