MSI B660M BOMBER DDR4 User Manual

14
JAUD1: Front Audio Connector
This connector allows you to connect audio jacks on the front panel.
1
2 10
9
Pin Signal Name Pin Signal Name
1 MIC L 2 Ground
3 MIC R 4 NC
5 Head Phone R 6 MIC Detection
7 SENSE_SEND 8 No Pin
9 Head Phone L 10 Head Phone Detection
CPU_FAN1, SYS_FAN1: Fan Connectors
Fan connectors can be classified as PWM (Pulse Width Modulation) Mode or DC Mode.
PWM Mode fan connectors provide constant 12V output and adjust fan speed with
speed control signal. DC Mode fan connectors control fan speed by changing voltage.
1
PWM Mode pin definition
Pin Signal Name Pin Signal Name
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
1
DC Mode pin definition
Pin Signal Name Pin Signal Name
1 Ground 2 Voltage Control
3 Sense 4 NC
Fan connector specifications
Connector Default fan mode Max. current Max. power
CPU_FAN1 PWM mode 2A 24W
SYS_FAN1 DC mode 2A 24W
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Important
You can adjust fan speed in BIOS > HARDWARE MONITOR.

MSI B660M BOMBER DDR4 Specifications

General

Brand	MSI
Model	B660M BOMBER DDR4
Category	Motherboard
Language	English