Table 61. Processor Fan Connector #2 (J3A1)
Pin | Signal | Type* | Description |
1 | Ground | power | GROUND is the power supply ground |
2 | 12V | power | Power Supply 12V |
3 | Fan Tach | out | FAN_TACH signal is connected to the BMC to monitor the FAN speed |
*Type (in/out) is from the perspective of the baseboard.
Table 62. Processor Fan Connector #3 (J4A1)
Pin | Signal | Type* | Description |
1 | Ground | power | GROUND is the power supply ground |
2 | 12V | power | Power Supply 12V |
3 | Fan Tach | out | FAN_TACH signal is connected to the BMC to monitor the FAN speed |
*Type (in/out) is from the perspective of the baseboard.
Table 63. Processor Fan Connector #4 (J4C1)
Pin | Signal | Type* | Description |
1 | Ground | power | GROUND is the power supply ground |
2 | 12V | power | Power Supply 12V |
3 | Fan Tach | out | FAN_TACH signal is connected to the BMC to monitor the FAN speed |
*Type (in/out) is from the perspective of the baseboard.
Internal USB Header (J1B3)
Table 64. Internal USB Connector (J1B3)
Pin | Signal | Description |
1 | NC | No Connect |
2 | U_P2_L | USB Port 2 – signal |
3 | U_P2 | USB Port 2 + signal |
4 | GROUND | Ground |
Internal Disk Drive LED Connection
Table 65. Internal USB Connector (J1B3)
Pin | Signal | Description |
1 | NC | No Connect |
2 | Activity Signal | 5V, High True Activity Signal |
3 | Activity Signal | Same as Pin 2 (Shorted to pin 2) |
4 | NC | No Connect |
106 | SKA4 Baseboard Product Guide |