Chapter 2: Installation
2-11
Fan Headers
The H8DSR-8/H8DSR-i has fi ve 3-pin
fan headers. Fan 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. COM2 is a header lo-
cated near the IDE1 header. See the
table on the right for pin defi nitions.
Note:
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
Fan Header
Pin Defi nitions
(FAN1-5)
Pin# Defi nition
1
FAN2 Power
2
FAN2 Tachometer
3
Ground
4
Ground
5
FAN1 Tachometer
6
FAN1 Power
USB2/3 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.
USB cables (not included) are needed
for the connections. See the table on
the right for pin defi nitions.
Extra Universal Serial Bus Headers
Pin Defi nitions (USB2/3)
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
ATX PS/2 Keyboard and
PS/2 Mouse Ports
The ATX PS/2 keyboard and the PS/2
mouse ports are located to the left of
the COM1 port. See the table on the
right for pin defi nitions.
PS/2 Keyboard and Mouse Port
Pin Defi nitions
(KB/Mouse)
Pin # Defi nition
Pin # Defi nition
1
Data
4
VCC
2
NC
5
Clock
3
Ground
6
NC
