IBM BladeCenter HS20 Installation And User Manual page 73

Table 7. Light path diagnostics
LED Problem
None An error has occurred and cannot be
isolated, or the service processor has
failed. The error is not represented by a
light path diagnostics LED.
DIMM x error A memory error has occurred.
SAS hard disk Reserved
drive-LED
Processor x error The microprocessor has failed.
Temperature error The system temperature has exceeded
(TEMP) a threshold level.
System board error The system board has failed
(S BRD)
NMI error The system board has failed.
Processor The processors do not match.
mismatch (MIS)
Action
Check the system error log in the management
module for more information about the error.
Replace the failing DIMM, which is indicated by the lit
DIMM failure LED.
Note: Multiple DIMM LEDs do not necessarily indicate
multiple DIMM failures. If more than one DIMM LED is
lit, reseat or replace one DIMM at a time until the error
is corrected. Check the system error log in the
management module for information about the error.
If the problem remains, have the blade server
serviced.
Reserved
Make sure that the microprocessor that is indicated by
the lit LED is installed correctly (see "Installing an
additional microprocessor" on page 28 for installation
instructions).
If the problem remains, have the blade server
serviced.
v Determine whether a blower on the BladeCenter
unit has failed. If it has, replace the blower.
v Make sure that the room temperature is not too high
(see "Features and specifications" on page 7 for
temperature information).
If the problem remains, have the blade server
serviced.
Replace the blade server cover, reinsert the blade
server in the BladeCenter unit, and then restart the
server.
If the problem remains, have the blade server
serviced.
v Replace the blade server cover, reinsert the blade
server in the BladeCenter unit, and then restart the
server.
v Check the system error log in the management
module for information about the error.
If the problem remains, have the blade server
serviced.
Make sure that microprocessors 1 and 2 have the
same cache size and type and the same clock speed.
Internal and external clock frequencies must be
identical.
If the problem remains, have the blade server
serviced.
Chapter 6. Solving problems
61