Cpu_Fan1, Pump_Fan1, Sys_Fan1~2: Fan Connectors; Jtpm1: Tpm Module Connector - MSI PRO B660M-A CEC WIFI User Manual

CPU_FAN1, PUMP_FAN1, SYS_FAN1~2: 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.
Connector
CPU_FAN1
PUMP_FAN1
SYS_FAN1~2
1
1 Ground
3 Sense
⚠
Important
You can adjust fan speed in BIOS > HARDWARE MONITOR.

JTPM1: TPM Module Connector

This connector is for TPM (Trusted Platform Module). Please refer to the TPM
security platform manual for more details and usages.
2
1
20
Overview of Components
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Default fan mode
PWM mode
PWM mode
DC mode
PWM Mode pin definition
2 +12V
4 Speed Control Signal
1 SPI Power
Master In Slave Out
3
12
5
7
11
9
11
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Max. current
2A
3A
1A
1
1 Ground
3 Sense
(SPI Data)
Reserved
Ground
Reserved 10
Reserved 12
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Max. power
24W
36W
12W
DC Mode pin definition
2 Voltage Control
4
2 SPI Chip Select
Master Out Slave In
4
(SPI Data)
6 SPI Clock
8 SPI Reset
No Pin
Interrupt Request
NC