Troubleshooting Bmc; Heartbeat Led Indicator; System Event Log Entries - HP MicroServe User Manual

Troubleshooting BMC

Heartbeat LED Indicator

The Heartbeat LED (CR1, which location is near the "Aspeed" chipset) is used to indicate whether the
BMC work normally or not. When BMC firmware works normally, it should blink with one second
interval. Otherwise, the BMC firmware should be in ill.
When encounter this failure, you should remove the server power and reboot the server (unplug the
server power cable, and then plug it again) to let BMC reboot. If the heartbeat LED still works
abnormally after server power on, you can attempt to flash the latest BMC firmware via the method
"Update BMC Firmware under DOS mode, Windows, Linux".

System Event Log Entries

Event Log Display
EvtLogDisabled: Event Log sensor,
Log Area Reset/Cleared was
asserted
Sys Pwr Monitor: Power Unit sensor,
Power Off / Power Down was
asserted
Sys Pwr Monitor: Power Unit sensor,
Power Off / Power Down was
deasserted
SYS_FAN: Fan sensor, failure event
was asserted
SYS_FAN: Fan sensor, failure event
was deasserted
CPU_THEMAL: Temperature sensor,
warning event was asserted
CPU_THEMAL: Temperature sensor,
warning event was deasserted
CPU_THEMAL: Temperature sensor,
failure event was asserted
NB_THERMAL: Temperature sensor,
warning event was asserted
NB_THERMAL: Temperature sensor,
warning event was deasserted
NB_THERMAL: Temperature sensor,
Event Log explanation
When clear SEL via Web UI "clear log" or using
IPMI command.
When power off the server.
When power on the server.
When fan unplugged or failed.
When fan recovers working normally from a
failure or unplugged condition.
When CPU temperature upper warning
threshold going high
When CPU temperature return lower warning
threshold
When CPU temperature upper failure threshold
going high
When North Bridge temperature upper warning
threshold going high
When North Bridge temperature return lower
warning threshold
When North Bridge temperature upper failure
65