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3. Hardware Installations
Front Panel Connector: FP1
FP1 consist of header can be connected to a front panel power switch. The front panel connector
includes headers for these I/O connections:
Power Switch (Power BT)
This header can be connected to a power push switch for ATX power supply.
Reset Switch (RESET)
This header can be connected to a reset push switch.
Power LED
This header can be connected to an LED that will light when the computer is powered on.
Hard drive activity LED (IDE ACT)
This header can be connected to an LED to provide a visual indicator that data is being read from or
written to an IDE hard drive. For the LED to function properly, the IDE drive must be connected to the
onboard IDE controller.
Speaker (BUZZER)
A speaker can be installed on the SEH-9450-LAS as a manufacturing option. The speaker is connected
by a jumper on pins 9, 11, 13, 15 of the front panel connector.
The speaker (on-board or off-board) provides error beep code information during the POST in the event
that the computer cannot use the video interface. The speaker is not connected to the audio subsystem
and does not receive output from the audio subsystem.
Table 3.7.
Front Panel Connector
FP1
1
15
Pin No.
Function
Pin No.
1
Power BT
2
3
GND
4
5
RESET
6
7
GND
8
9
VCC
10
11
N.C.
12
13
N.C.
14
15
BUZZER
16
Speaker
9, 11, 13, 15
Reset Button
5, 7
Power LED
8, 10, 12
16
2
16
Function
VCC
Power Switch
IDE ACT
for ATX
N.C.
VCC
Reset Switch
N.C.
GND (for Power LED)
N.C.
External Speaker
( E x . 8 Ω 0 . 2 5 W )
N.C.
Power Button
1, 3
HDD LED
2, 4
1
HDD Active Indicator LED
Power LED
15
SEH-9450-LAS
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