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Chapter 5: Advanced Serverboard Setup
5-17
ATX PS/2 Keyboard and
PS/2 Mouse Ports
The ATX PS/2 keyboard and PS/2
mouse ports are located beside the
USB ports. See the table at right for
pin defi nitions.
PS/2 Keyboard and
Mouse Port Pin
Defi nitions
Pin# Defi nition
1 Data
2NC
3 Ground
4 VCC
5 Clock
6NC
Serial Ports
One backpanel COM port and one
COM header (located near the BIOS
chip) are included on the serverboard.
See the table on the right for pin
defi nitions.
Serial Port Pin Defi nitions
(COM1/COM2)
Pin # Defi nition Pin # Defi nition
1 DCD 6 DSR
2 RXD 7 RTS
3 TXD 8 CTS
4 DTR 9 RI
5 Ground 10 NC
Note: Pin 10 is included on the header but not on
the port. NC indicates no connection.
Power Fault
Connect a cable from your power
supply to the PW4 header to provide
warning of power supply failure. This
warning signal is passed through the
PWR_LED pin to indicate of a power
failure on the chassis. See the table
on the right for pin defi nitions.
Note: This feature is only available when using
redundant Supermicro power supplies.
PWR Fault Connection
Pin Defi nitions (PW4)
Pin# Defi nition
1 PWR 1 Fail Signal
2 PWR 2 Fail Signal
3 PWR 3 Fail Signal
4 PWR 4 Fail Signal
SMB Power (I
2
C)
Connector
The I
2
C connector (PW3) allows you
to monitor the status of the power sup-
ply, fans and system temperature.
SMB Power Connection
Pin Defi nitions (PW3)
Pin# Defi nition
1 Clock
2 Data
3N/A
4N/A
5N/A