Intel D101GGC Product Specification - Page 43

Hard Drive Activity LED Connector [Orange], 7.2.4.2, Reset Switch Connector [Blue], 7.2.4.3

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Technical Reference + Hard Drive Activity LED − Reset Switch +5 V DC Blue Orange 12 34 56 78 9 Red Green Single-colored Power LED + − Dual-colored Power LED − + Power Switch N/C OM18249 Figure 8. Connection Diagram for Front Panel Connector 2.7.2.4.1 Hard Drive Activity LED Connector [Orange] Pins 1 and 3 [Orange] can be connected to an LED to provide a visual indicator that data is being read from or written to a hard drive. Proper LED function requires one of the following: • A Serial ATA hard drive connected to an onboard Serial ATA connector • An IDE hard drive connected to an onboard IDE connector 2.7.2.4.2 Reset Switch Connector [Blue] Pins 5 and 7 [Blue] can be connected to a momentary single pole, single throw (SPST) type switch that is normally open. When the switch is closed, the board resets and runs the POST. 2.7.2.4.3 Power/Sleep LED Connector [Green] Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 26 shows the possible states for a one-color LED. Table 27 shows the possible states for a two-color LED. Table 26. States for a One-Color Power LED LED State Description Off Steady Green Power off/sleeping Running Table 27. States for a Two-Color Power LED LED State Off Steady Green Steady Yellow Description Power off Running Sleeping 43

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Technical Reference
43
Single-colored
Power LED
+
−
OM18249
8
6
4
2
9
7
5
3
1
Hard Drive
Activity LED
Reset
Switch
+5 V DC
N/C
Power
Switch
−
+
Dual-colored
Power LED
−
+
Orange
Blue
Green
Red
Figure 8.
Connection Diagram for Front Panel Connector
2.7.2.4.1
Hard Drive Activity LED Connector [Orange]
Pins 1 and 3 [Orange] can be connected to an LED to provide a visual indicator that data is being
read from or written to a hard drive.
Proper LED function requires one of the following:
•
A Serial ATA hard drive connected to an onboard Serial ATA connector
•
An IDE hard drive connected to an onboard IDE connector
2.7.2.4.2
Reset Switch Connector [Blue]
Pins 5 and 7 [Blue] can be connected to a momentary single pole, single throw (SPST) type switch
that is normally open.
When the switch is closed, the board resets and runs the POST.
2.7.2.4.3
Power/Sleep LED Connector [Green]
Pins 2 and 4 [Green] can be connected to a one- or two-color LED.
Table 26 shows the possible
states for a one-color LED.
Table 27 shows the possible states for a two-color LED.
Table 26.
States for a One-Color Power LED
LED State
Description
Off
Power off/sleeping
Steady Green
Running
Table 27.
States for a Two-Color Power LED
LED State
Description
Off
Power off
Steady Green
Running
Steady Yellow
Sleeping