IBM xSeries 236 8841, User Manual

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Power-supply LEDs
The ac and dc power LEDs on a power supply provide status information about that
power supply. The following illustration shows the location of the ac and dc power
LEDs.
Note: The following illustration shows the rear of the server with two hot-swap
power supplies installed. A server with a single fixed power supply will have
one power supply and no fans on the rear of the server.
Fan 5 LED
Fan 6 LED
Power supply 1
Power supply 2
AC power LED
AC power LED
DC power LED
DC power LED
For more information about the ac and dc power LEDs, see “Power-supply LED
errors” on page 116.
Updating the BMC firmware
Use the baseboard management controller (BMC) firmware update utility program to
download a BMC firmware update or a sensor data record/field replaceable unit
update. The firmware update utility program updates the BMC firmware or
SDR/FRU data only and does not affect any device drivers.
Go to http://www.ibm.com/support/ to download the utility program; then, copy the
flash.exe file to a firmware update diskette.
Note: To ensure proper server operation, be sure to update the server BMC
firmware code first before updating the BIOS code.
Chapter 5. Diagnostics
95