16
You can adjust fan speed in
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
1 Ground 2 +12V
3 Sense 4 Speed Control Signal
CPU_FAN1 PWM mode 2A 24W
SYS_FAN1 DC mode 1A 12W
1
1 Ground 2 Voltage Control
3 Sense 4 NC
1
2
12
11
1 SPI Power 2 SPI Chip Select
3
Master In Slave Out (SPI
Data)
4
Master Out Slave In (SPI
Data)
5 Reserved 6 SPI Clock
7 Ground 8 SPI Reset
9 Reserved 10 No Pin
11 Reserved 12 Interrupt Request
This connector is for TPM (Trusted Platform Module). Please refer to the TPM
security platform manual for more details and usages.
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