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System board error LED (P1 SYS BRD)
Light path diagnostics switch
Figure 4. Light path diagnostic LEDs
Light path diagnostics LEDs
Light path diagnostics is a system of LEDs on the control panel and on the system
board of the blade server. When an error occurs, LEDs are lit throughout the blade
server. If the control panel indicates an error, use the descriptions of the LEDs to
diagnose the problem and take corrective action.
Table 31 describes the LEDs on the system board and suggested actions for
correcting any detected problems.
Table 31. Light path diagnostic LED descriptions
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See Chapter 3, "Parts listing, Type 7998," on page 235 to determine which components are CRUs and which
components are FRUs.
v If an action step is preceded by "(Trained service technician only)," that step must be performed only by a
trained service technician.
Lit light path
diagnostics LED
Description
None
An error has occurred and cannot be isolated,
or the service processor has failed.
Battery error
A battery error occurred.
P1-E1 BATT
Hard disk drive error LED (P1-D1 SAS 0)
DIMM 3 error LED (P1-C1 DIMM3)
DIMM 4 error LED (P1-C2 DIMM4)
PCI-X expansion option error
LED (P1-C6 PCI-X)
DIMM 2 error LED (P1-C3 DIMM2)
DIMM 1 error LED (P1-C4 DIMM1)
PCI-E high-speed expansion card error LED (P1-C7 PCI-E)
Management card error LED
(P1-C5 MGMT CRD)
Battery error LED (P1-E1 BATT)
Action
An error has occurred that is not represented
by a light path diagnostics LED. Check the
management-module event log for information
about the error.
1. Reseat the battery, as described in
"Installing the battery" on page 264.
2. Replace the battery, as described
in"Removing the battery" on page 263 and
"Installing the battery" on page 264.
219
Chapter 2. Diagnostics
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