MSI B460M PRO Mode D'emploi page 15

CPU_FAN1, SYS_FAN1: Fan Connectors
PWM Mode fan connectors provide constant 12V output and adjust fan speed with
speed control signal. When you plug a 3-pin (Non-PWM) fan to a fan connector in
PWM mode, the fan speed will always maintain at 100%, which might create a lot of
noise.
Connector
CPU_FAN1
SYS_FAN1
1
PWM Mode pin definition
1 Ground 2
3 Sense 4
⚠
Important
You can adjust fan speed in BIOS > Advanced > 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
12
1
11
Default fan
mode
Auto mode
DC mode
+12V
Speed Control Signal
1 SPI Power
Master In Slave Out (SPI
3
Data)
5 Reserved
7 Ground
9 Reserved
11 Reserved
Max. current
1A
1A
1
DC Mode pin definition
1 Ground
3 Sense
2
Master In Slave In (SPI
4
6
8
10
12
Max.
power
12W
12W
2 Voltage Control
4 NC
SPI Chip Select
Data)
SPI Clock
SPI Reset
No Pin
Interrupt Request
Overview of Components
15