States For A One-Color Power Led; States For A Two-Color Power Led - Intel BLKD945GCPE - LGA775 1066FSB 2DDR2 2GB Audio Video Lan mATX 10Pack Motherboard Technical Product Specification

Intel Desktop Board D945GCPE Technical Product Specification
2.2.2.4.1 Hard Drive Activity LED Header [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
2.2.2.4.2 Reset Switch Header [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.
2.2.2.4.3 Power/Sleep LED Header [Green]
Pins 2 and 4 [Green] can be connected to a one- or two-color LED. Table 19 shows
the possible states for a one-color LED. Table 20 shows the possible states for a two-
color LED.
Table 19. States for a One-Color Power LED
LED State
Off
Steady Green
Table 20. States for a Two-Color Power LED
LED State
Off
Steady Green
Steady Yellow
NOTE
The colors listed in Table 19 and Table 20 are suggested colors only. Actual LED
colors are product- or customer-specific.
2.2.2.4.4 Power Switch Header [Red]
Pins 6 and 8 [Red] can be connected to a front panel momentary-contact power
switch. The switch must pull the SW_ON# pin to ground for at least 50 ms to signal
the power supply to switch on or off. (The time requirement is due to internal
debounce circuitry on the board.) At least two seconds must pass before the power
supply will recognize another on/off signal.
44
Description
Power off/sleeping
Running
Description
Power off
Running
Sleeping