Intel D815EEA2

Technical Reference
81
2.8.3.3.3 Power/Sleep/Message Waiting LED Connector
Pins 2 and 4 can be connected to a single-colored or dual-colored LED. Table 49 shows the
possible states for a single-colored LED. Table 50 shows the possible states for a dual-colored
LED.
Table 49. States for a Single-Colored Power LED
LED State Description
Off Power off/sleeping
Steady Green Running
Blinking Green Running/message waiting
Table 50. States for a Dual-Colored Power LED
LED State Description
Off Power off
Steady Green Running
Blinking Green Running/message waiting
Steady Yellow Sleeping
Blinking Yellow Sleeping/message waiting
✏ NOTE
To use the message waiting function, ACPI must be enabled in the operating system and a message-
capturing application must be invoked.
2.8.3.3.4 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 D815EEA2 and D815EPEA2
boards.) At least two seconds must pass before the power supply will recognize another on/off
signal.