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6.4
Status LED (J70), HDD LED (J17) & POST Code Display (D136/D137)
The onboard status and voltage indicator LEDs will show you the current power states, alarm signals and
correct voltage status on the COMexpress module. To reduce power consumption open Jumper J70 to
disable all status LEDs.
LED
D84
S5 - Off State
D83
S4 - Suspend to Disk
D82
S3 - Suspend to RAM
D85
Suspend
D104
THRM - Temperature Alarm
D97
Module Type 2 not OK
D96
12V / Battery (ATX_12V)
LED D69 shows hard disk activity for connected IDE, Compact Flash or SATA devices. With J17 it's
possible to connect an external LED.
D136 (Port80 MSB) and D137 (Port80 LSB) shows the actual POST Codes if the module BIOS is configured
to send POST Code cycles to the LPC Bus.
Kontron User's Guide ETXexpress UGM
Evaluation Board
Description
19
6 Connector and feature description
LED
Description
D86
12V
D88
5V
D87
5V Standby
D89
3.3V
D94
3.3V NoATX / CPLD Voltage
D93
2.5V
D92
1.5V
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