Intel D925XBC, D925XCV Hard Drive Activity LED Connector Yellow, Reset Switch Connector Purple

Technical Reference

Dual-colored Power LED

+

−

N/C

Power

Switch

Single-colored

Power LED

−

+

Green Red

8

6

4

2

9 +5 V DC

7Reset

Purple5 Switch

3	Yellow	−	Activity LED
			Hard Drive
1		+

OM17000

Figure 23. Connection Diagram for Front Panel Connector

2.8.2.4.1Hard Drive Activity LED Connector [Yellow]

Pins 1 and 3 [Yellow] 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

2.8.2.4.2Reset Switch Connector [Purple]

Pins 5 and 7 [Purple] 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.

2.8.2.4.3Power/Sleep LED Connector [Green]

Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 34 shows the possible states for a one-color LED. Table 35 shows the possible states for a two-color LED.

Table 34. States for a One-Color Power LED

LED State	Description
Off	Power off/sleeping
Steady Green	Running

Table 35. States for a Two-Color Power LED

LED State	Description
Off	Power off
Steady Green	Running
Steady Yellow	Sleeping

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