Chapter 5: Advanced Serverboard Setup
Serial Ports
Serial Port Pin Definitions
(COM1/COM2)
The COM1 serial port is located on the IO backplane. COM2 is a header on the serverboard (see serverboard layout for location). See the table on the right for pin definitions.
Pin # Definition
1DCD
2RXD
3TXD
4DTR
5Ground
Pin # Definition
6DSR
7RTS
8CTS
9RI
10NC
Power Fail Header
Connect a cable from your power sup- ply to the Power Fail header to provide you with warning of a power supply failure. The warning signal is passed through the PWR_LED pin to indicate a power failure. See the table on the right for pin definitions. Note: this header is unused on the
Fan Headers
The X7DB3 has five fan headers, designated Fan1 through Fan5. Fan speed is controlled via Thermal Man- agement with a BIOS setting. See the table on the right for pin definitions.
Note: Pin 10 is included on the header but not on the port. NC indicates no connection.
Power Fail Header
Pin Definitions (PSF)
Pin# Definition
1P/S 1 Fail Signal
2P/S 2 Fail Signal
3P/S 3 Fail Signal
4Alarm Reset
Note: This feature is only available when using redundant Supermicro power supplies.
Fan Header
Pin Definitions
Pin# Definition
1Ground (Black)
2+12V (Red)
3Tachometer
4PWM Control
Chassis Intrusion
A Chassis Intrusion header is located at JL1. Attach the appropriate cable to inform you of a chassis intrusion.
Chassis Intrusion
Pin Definitions (JL1)
Pin# Definition
1Intrusion Input
2Ground
