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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
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
14
Overview of Components
Default fan
mode
PWM mode
PWM mode
PWM Mode pin definition
2
+12V
4
Speed Control Signal
1
Master In Slave Out (SPI
3
12
5
7
11
9
11
Max. current
1A
1A
1
1
3
SPI Power
Data)
Reserved
Ground
Reserved
Reserved
Max.
power
12W
12W
DC Mode pin definition
Ground
2
Voltage Control
Sense
4
2
SPI Chip Select
Master In Slave In (SPI
4
Data)
6
SPI Clock
8
SPI Reset
10
No Pin
12
Interrupt Request
NC
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