TYAN S5630 Manual page 23

CPU FAN/ SYS FAN1~6: 4-pin CPU Fan Connector
PSMI_HD1: PSMI Connector
RST_BTN1: Reset Button
Pin
Signal
CLEAR_BTN1: CMOS Clear Button
You can reset the CMOS settings by using this Button. This can be useful if
you have forgotten your system/setup password, or need to clear the system
BIOS setting.
1. Power off system and disconnect power connectors from the motherboard.
2. Press the button.
3. Reconnect power connectors to the motherboard and power on system.
Pin 1
Signal
GND
Use this header to connect the cooling fan to your motherboard to
keep the system stable and reliable.
Note: A 4-pin fan is required for fan support 4pin Control
Pin 1
Signal SMB_CLK
1
GND GND
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2
VCC12
2
SMB_DAT SMB_ALERT#
2 3
FP_RST_BTN_N
23
3
FAN_TACH
3 4
GND
FP_RST_BTN_N
4
PWM
5
VCC3
4