Speaker; Reset Switch; Front Panel I/O Connectors - Intel MS440GX Product Manual

Table 34.

Front Panel I/O Connectors

Call-out Connector/Function
A

SPEAKER/

Provides error beep code information during the
POST and is not connected to audio
subsystem.
B

RESET SWITCH/

Resets the motherboard and initiates running
the POST.
NONE
C POWER/SLEEP LED/
Displays indicating if computer is ON or in sleep
mode.
NONE
D HARD DISK DRIVE ACTIVITY LED/
Visually indicate if data is being read from or
written to an IDE or SCSI hard drive.
NONE
E INFRARED PORT/
Can be configured to support an IrDA module
enabling data files to be transferred to/from
various portable devices.
NONE
F POWER ON SWITCH/
Enables system to be powered ON or OFF.

Speaker

Connect pins 1 and 2 to use the built-in speaker. Leave the jumper off pins 1 and 2 and connect
the external speaker to J12A1 to use the external speaker. See page 91 for the location of the
external speaker connector.

Reset Switch

Pins 5 and 6 can be connected to a momentary SPST type switch that is normally open.
When the switch is closed, then the motherboard resets and runs the POST.
Technical Reference
Pin Signal Name
1 BUZZER_B1
2 BUZZER_A2
3 Key
4 +5V
5 FP_RESET#
6 Ground
7 Key
8 GREEN/YELLOW_INV
9 Key
10 YEL_BLNK#
11 Key
12 +5V
13 DASDACTIVE#
14 Key
15 +5V
16 Key
17 IRLS1
18 IRTX
19 Ground
20 IRRX
21 Key
22 +5V
23 Key
24 +5V
25 No Connect (N.C.)
26 Ground
27 SWITCH
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