Bmc Not Responding; Problem; Symptom; Solution - Acer ARMC_2 User Manual

BMC Not Responding

Problem

The BMC does not respond.

Symptom

You cannot power off, power on, or power cycle the host system. You cannot obtain Host
System health information.

Solution

Make sure that in IPMI configuration "Use server's onboard BMC to access health
information" is checked. Confirm that the BMC I2C address needs to be set to 0X20.
When the BMC is in locked state the user cannot get the sensor information. In order to
make the BMC come out of that state the system needs to be rebooted. The BMC's I2C
address should never be set to 0x21 – that is not a valid address. 0x20 is the correct
address for almost all BMCs. If it is not, the BMC or motherboard provider must supply
the correct one.
Many BMCs feature a reset button that can be used to reset the BMC only. That button
can be used to reset the BMC. If using a BMC without a BMC reset button, the system
must be powered off and the power cable(s) unplugged. Some BMCs will run on system
standby power, and stay on even though the system is in an off state.
134 ARMC/2 User's Guide