SUPER MICRO Computer Dual Processor AS 1020C-3 - Manual (Page 49)

Chapter 5: Advanced Serverboard Setup
5-15
Fan Headers
The H8DCR-3/H8DR-i has fi ve fan
headers, which are designated FAN1
through FAN5. Fans are Pulse Width
Modulated (PWM) and their speed is
controlled via Thermal Management
with a BIOS setting. See the table on
the right for pin defi nitions.
Serial Ports
The COM1 serial port is located be-
side the USB ports and the COM2
header is located by the IDE#1 con-
nector. Refer to the table on the right
for pin defi nitions.
Fan Header
Pin Defi nitions
(FAN1-8)
Pin# Defi nition
1 Ground (Black)
2 +12V (Red)
3 Tachometer
4 PWM Control
Extra USB Headers
Tw o a d d i t i o n a l U S B 2 . 0 h e a d -
ers (USB2/3) are included on the
serverboard. These may be con-
nected to provide front side access.
A USB cable (not included) is needed
for the connection. See the table on
the right for pin defi nitions.
Extra Universal Serial Bus Headers
Pin Defi nitions (JUSB2)
USB2
Pin # Defi nition USB3/4
Pin # Defi nition
1 +5V 1 +5V
2 PO- 2 PO-
3 PO+ 3 PO+
4 Ground 4 Ground
5 Key 5 No connection
Chassis Intrusion
A Chassis Intrusion header is located
at JL1. Attach the appropriate cable
to inform you of a chassis intrusion.
Chassis Intrusion
Pin Defi nitions (JL1)
Pin# Defi nition
1 Battery voltage
2 Intrusion signal
Note: Pin 10 is included on the header but not on
the port. NC indicates no connection.
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