Internal Usb Header (J1B3); Internal Disk Drive Led Connection; Processor Fan Connector #2 (J3A1); Processor Fan Connector #3 (J4A1) - Intel SKA4 Product Manual

Table 61.

Processor Fan Connector #2 (J3A1)

Pin Signal
1 Ground
2 12V
3 Fan Tach
* Type (in/out) is from the perspective of the baseboard.
Table 62.

Processor Fan Connector #3 (J4A1)

Pin Signal
1 Ground
2 12V
3 Fan Tach
* Type (in/out) is from the perspective of the baseboard.
Table 63.

Processor Fan Connector #4 (J4C1)

Pin Signal
1 Ground
2 12V
3 Fan Tach
* Type (in/out) is from the perspective of the baseboard.

Internal USB Header (J1B3)

Table 64.

Internal USB Connector (J1B3)

Pin Signal
1 NC
2 U_P2_L
3 U_P2
4 GROUND

Internal Disk Drive LED Connection

Table 65. Internal USB Connector (J1B3)
Pin Signal
1 NC
2 Activity Signal
3 Activity Signal
4 NC
106
Type* Description
power GROUND is the power supply ground
power Power Supply 12V
out FAN_TACH signal is connected to the BMC to monitor the FAN speed
Type* Description
power GROUND is the power supply ground
power Power Supply 12V
out FAN_TACH signal is connected to the BMC to monitor the FAN speed
Type* Description
power GROUND is the power supply ground
power Power Supply 12V
out FAN_TACH signal is connected to the BMC to monitor the FAN speed
Description
No Connect
USB Port 2 – signal
USB Port 2 + signal
Ground
Description
No Connect
5V, High True Activity Signal
Same as Pin 2 (Shorted to pin 2)
No Connect
SKA4 Baseboard Product Guide