Front Panel Connector - Intel S651M User Manual

Front Panel Connector

The front panel connector (PANEL1) provides a standard set of switch and
LED connectors commonly found on ATX or micro-ATX cases. Refer to the
table below for information:
PANEL1
Hard Drive Activity LED
Connecting pins 1 and 3 to a front panel mounted LED provides visual
indication that data is being read from or written to the hard drive. For the LED
to function properly, an IDE drive should be connected to the onboard IDE
interface. The LED will also show activity for devices connected to the SCSI
(hard drive activity LED) connector.
Power / Sleep / Message Waiting LED
Connecting pins 2 and 4 to a single- or dual-color, front panel mounted LED
provides power on/off, sleep, and message waiting indication.
Reset Switch
Supporting the reset function requires connecting pins 5 and 7 to a
momentary-contact switch that is normally open. When the switch is closed,
the board resets and runs POST.
Power Switch
Supporting the power on/off function requires connecting pins 6 and 8 to a
momentary-contact switch that is normally open. The switch should maintain
contact for at least 50 ms to signal the power supply to switch on or off. The
time requirement is due to internal debounce circuitry. After receiving a power
on/off signal, at least two seconds elapses before the power supply
recognizes another on/off signal.
Pin Function
Hard disk LED
1
(positive)
Hard disk active LED
3
(negative)
5
Reset Switch
7
Reset Switch
9
Reserved
12
Pin Function
MSG LED [dual color
2
or single color (+)]
MSG LED [dual color
4
or single color (-)]
6
Power Switch
8
Power Switch
10
No pin