SMART Embedded Computing PrAMC-7311 Installation And Use Manual page 103

Problem
PrAMC-7311 Installation and Use (6806800P34F)
Possible Reason
The carrier IPMC has
disabled payload power to
the module.
The processor has hung
during boot-up.
Serial port is not OK.
Run out of battery.
CMOS check sum failed.
Solution
Check if the Shelf manager/Carrier IPMC has
detected an overload/short circuit on the
payload power rail and has hence decided to
disable payload power to the module.
The MMC monitors the POST codes of the
processor. System management firmware can
use the MMC to trace the stage at which
processor got stuck.
Check if the connection of the serial port cable
to the console connector and to the terminal PC
is secure.
Ensure that a cross cable is used.
Check the settings (baud rate, flow-control,
etc.) of the terminal program.
Check the baud rate setting in the BIOS setup.
This should match the baud rate setting of the
terminal program.
Check the battery set is well on socket.
Open / Close the handle again.
Removed the battery for more than
10 seconds and put it back, then power on
system.
During Boot-Up
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