IBM eserver xSeries 350 User Reference Manual page 123

Table 17. Light Path Diagnostics.
System error Diagnostics
LED (on the panel LED on
information LED
panel)
On CPU
On FAN
On TEMP
On NON RED
On OVER SPEC
On PS1
On PS2
On PS3
Cause
One of the microprocessors has failed,
or a microprocessor is installed in the
wrong connector.
One of the fans has failed or is
operating too slowly.
Note: A failing fan can also cause
the TEMP and DASD LEDs to
be on.
The system temperature has exceeded
the maximum rating.
The server is operating in a
nonredundant power mode. Two or
more power supplies are installed in
the server, and either one power
supply has failed or the server has
reached a condition in which it is no
longer operating in redundant mode.
The server is drawing more power
than the power supplies are rated for.
The first power supply has failed.
The second power supply has failed.
The third power supply has failed.
Action
1. Check the microprocessor error
LEDs on the memory board. If a
microprocessor error LED is on
for a microprocessor connector
that has a terminator card
installed instead of a
microprocessor, the
microprocessors are not installed
in the correct order. See
"Installing a microprocessor" on
page 55 for information about the
correct order for installing
microprocessors. Otherwise,
continue with the next step.
2. Turn off the server, reseat the
microprocessor indicated by the
lit microprocessor error LED, and
restart the server.
3. If the problem persists, replace
the microprocessor.
If the problem persists, have the
system serviced.
The LED on the failing fan will be lit.
Replace the fan.
1. Check to see if a fan has failed. If
it has, replace the fan.
2. Make sure the room temperature
is not too high. (See "Chapter 1.
Introducing the xSeries 350
server," on page 1.)
If the problem persists, have the
system serviced.
If a power supply has failed, replace
the failing power supply. If not, add a
power supply to ensure redundancy.
Either add a power supply or remove
a device from the server.
Replace the first power supply.
Replace the second power supply.
Replace the third power supply.
Chapter 6. Solving problems
111