DB43LD Technical Product Specification

Technical Reference

2.2.2.5 Alternate Front Panel Power LED Header

Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel

header.

Table 23. Alternate Front Panel Power LED Header

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

2.2.2.6 Intel AMT “M” State LED

The board has an Intel AMT “M” state LED (red), located near the Channel A DIMM

socket. The “M” state is based on Intel ME status, as follows:

• M0 = Intel ME is in full control in S0

• M1 = Intel ME is in full control in S3-S5 for “out of bound” Intel manageability

• Moff = Intel ME is in sleep state after Intel ME timeout has occurred

Table 24. Intel AMT “M” State LED Behavior

Intel ME LED Sx/M1 Sx/Moff S0/M0

Enabled using AMTNVM LED blinks Off On

Disabled using AMTNVM Off Off On