States For A One-Color Power Led; States For A Two-Color Power Led - Intel D845PEMY Specification

Intel Desktop Board D845PEMY Technical Product Specification
2.8.3.2.1 Hard Drive Activity LED Connector
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from
or written to a hard drive. For the LED to function properly, an IDE drive must be connected to the
onboard IDE interface.
2.8.3.2.2 Reset Switch Connector
Pins 5 and 7 can be connected to a momentary SPST type switch that is normally open. When the
switch is closed, the Desktop Board resets and runs the POST.
2.8.3.2.3 Power/Sleep LED Connector
Pins 2 and 4 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
Off
Steady Green
Table 27.

States for a Two-Color Power LED

LED State
Off
Steady Green
Steady Yellow
NOTE
The colors listed in Table 26 and Table 27 are suggested colors only. Actual LED colors are
product- or customer-specific.
2.8.3.2.4 Power Switch Connector
Pins 6 and 8 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 Desktop Board D845PEMY.) At
least two seconds must pass before the power supply will recognize another on/off signal.
46
Description
Power off/sleeping
Running
Description
Power off
Running
Sleeping