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Extra USB Headers
Four additional USB2.0 headers
(USB4/5 and USB6/7) 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.
Serial Ports
The COM1 and COM2 serial ports are
located under the parallel port. Refer
to Figure 2-3 for locations and the
table on the right for pin defi nitions.
Fan Headers
The H8DCE has eight fan headers,
which are designated FAN1 through
FAN8. Fans are Pulse Width Modu-
lated (PWM) and their speed is con-
trolled via Thermal Management with
a BIOS setting. See the table on the
right for pin defi nitions.
Note: when using active heatsinks
(those with fans), connect the heatsink
fan for CPU1 to the FAN7 header and
the heatsink fan for CPU2 to the FAN8
header.
JLAN1/2 (Ethernet Ports)
Two Gigabit Ethernet ports (desig-
nated JLAN1 and JLAN2) are located
beside the COM2 port. These Ether-
net ports accept RJ45 type cables.
Chapter 5: Advanced Serverboard Setup
Extra Universal Serial Bus Headers
Pin Defi nitions (USB4/5/6/7)
USB2
Pin #
Defi nition
1
+5V
2
PO-
3
PO+
4
Ground
5
Key
Serial Port Pin Defi nitions
(COM1/COM2)
Pin #
Defi nition
1
CD
2
RD
3
TD
4
DTR
5
Ground
Note: NC indicates no connection.
Fan Header
Pin Defi nitions
(FAN1-8)
Pin#
Defi nition
1
Ground (Black)
2
+12V (Red)
3
Tachometer
4
PWM Control
5-15
USB3/4
Pin #
Defi nition
1
+5V
2
PO-
3
PO+
4
Ground
5
No connection
Pin #
Defi nition
6
DSR
7
RTS
8
CTS
9
RI
10
NC
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