Premio Computer Apollo/Shadowhawk - Manual (Page 96)

Technical Reference
73
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NOTE
The operation of the infrared port and serial port B are mutually exclusive. When the IR option is
enabled in the BIOS Setup program, serial port B is disabled.
2.8.3.2.4 Power/Sleep/Message Waiting LED Connector
Pins 2 and 4 can be connected to a one- or two-color LED. Table 46 shows the possible states for
a one-color LED. Table 47 shows the possible states for a two-color LED.
Table 46. States for a One-Color Power LED
LED State Description
Off Power off/sleeping
Steady Green Running
Blinking Green Running/message waiting
Table 47. States for a Two-Color Power LED
LED State Description
Off Power off
Steady Green Running
Blinking Green Running/message waiting
Steady Yellow Sleeping
Blinking Yellow Sleeping/message waiting
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NOTE
To use the message waiting function, ACPI must be enabled in the operating system and a
message-capturing application must be invoked.
2.8.3.2.5 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 D845HV/D845WN board.) At
least two seconds must pass before the power supply will recognize another on/off signal.