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Serial Ports
The COM1 serial port is located be-
side the VGA port. COM2 is a header
on the serverboard located near the
BIOS chip (see serverboard layout for
location). See the table on the right
for pin defi nitions.
Power Fail and Alarm Reset
Header
Connect a cable from your power sup-
ply to the JP10 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 defi nitions.
Fan Headers
The H8DA8/H8DAE has eight fan
headers (FAN1-FAN8) and the
H8DAR-8/H8DAR-i has fi ve fan head-
ers (FAN1-FAN5). Fan speed is con-
trolled with a BIOS setting. See the
table on the right for pin defi nitions.
Note: the H8DAR-8 and H8DAR-i
have 3-pin fan headers. Pin 4 on
the table is not included on these
headers.
JLAN1/2 (Ethernet Ports)
Two Gigabit Ethernet ports (desig-
nated JLAN1 and JLAN2) are located
beside the VGA port. These ports
accept RJ45 type cables.
Serial Port Pin Defi nitions
(COM1/COM2)
Pin #
Defi nition
1
DCD
2
RXD
3
TXD
4
DTR
5
Ground
Note: Pin 10 is included on the header but not on
the port. NC indicates no connection.
Power Fail/Alarm Reset
Pin Defi nitions (JP10)
Pin#
Defi nition
1
P/S 1 Fail Signal
2
P/S 2 Fail Signal
3
P/S 3 Fail Signal
4
Reset (from MB)
Note: This feature is only available when using
redundant power supplies.
Fan Header
Pin Defi nitions
Pin#
1
2
3
4
2-11
Chapter 2: Installation
Pin #
Defi nition
6
DSR
7
RTS
8
CTS
9
RI
10
NC
Header
(FAN1-8)
Defi nition
Ground (Black)
+12V (Red)
Tachometer
PWM Control
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