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Intel D845GEBV2 BLKD845GEBV2L-10PK User Manual

Product codes
BLKD845GEBV2L-10PK
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Technical Reference 
 71 
2.8.3.1.3 
Power/Sleep/Message Waiting LED Connector 
Pins 2 and 4 can be connected to a one- or two-color LED.  Table 37 shows the possible states for 
a one-color LED.  Table 38 shows the possible states for a two-color LED. 
 
Table 37.  States for a One-Color Power LED 
LED State 
Description 
Off Power 
off/sleeping 
Steady Green 
Running 
Blinking Green 
Running/message waiting 
 
Table 38.  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 
# 
INTEGRATOR’S NOTE 
To use the message waiting function, ACPI must be enabled in the operating system and a 
message-capturing application must be invoked. 
2.8.3.1.4 
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 board.)  At least two seconds 
must pass before the power supply will recognize another on/off signal. 
2.8.3.2  Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector 
Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector.  
Table 39 lists the signal names of the Auxiliary Front Panel Power/Sleep/Message-Waiting LED 
Connector. 
Table 39.  Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector 
Pin Signal 
Name 
In/Out 
Description 
1 
HDR_BLNK_GRN 
Out 
Front panel green LED 
2 Not 
connected 
 
 
3 
HDR_BLNK_YEL 
Out 
Front panel yellow LED