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HDD/FP UID Switch
The HDD/UID Switch connections are locat-
ed on pins 13/14 of JF1. Attach a hard-drive
LED cable to display HDD or SATA activities.
This connection can also be used as a front
panel UID (Unit Identifier) switch. The UID
LED on Pin 7 of JF1 works in conjunction with
this UID Switch. When the user presses and
releases the UID switch, the UID LED will be
turned on or off to indicate the location of the
unit. (Refer to Page 2-11 for more details.)
Power LED Connector
The Power LED connector is on pins 15 and
16 of JF1. See the table on the right for pin
definitions.
Fan Headers
This motherboard has five fan headers (Fan1
to Fan5). These 4-pin fans headers are
backward compatible with 3-pin fans. How-
ever, fan speed control is available for 4-pin
fans only. The fan speeds are controlled by
the BIOS. See the table on the right for pin
definitions
Serial Ports
The COM1 serial port is located beside the
VGA port. Refer to the motherboard layout
for the location of the COM2 header. See the
table on the right for pin definitions.
Chapter 5: Advanced Motherboard Setup
HDD/UID Switch
Pin# Definition
13
14
Pin# Definition
15
16
Pin#
1
2
3
4
Serial Port Pin Definitions
Pin # Definition
1
DCD
2
RXD
3
TXD
4
DTR
5
Ground
Note: NC indicates no connection.
5-13
Pin Defi nitions
(JF1)
UID Signal/3.3V
HDD Active
Power LED
Pin Definitions
(JF1)
PW_ON
Ground
Fan Header
(FAN1~FAN5)
Pin Definitions
Definition
Ground
+12V
Tachometer
PWR Modulation
(COM1/COM2)
Pin # Definition
6
DSR
7
RTS
8
CTS
9
RI
10
NC
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