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 4, “Parts listing, Types 7145, 7146, 7143, and 7191,” on page 81 to determine which components are
customer replaceable units (CRU) and which components are field replaceable units (FRU).
v If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
Power-supply LEDs
Operator
information
panel
power-on
LED Description ActionAC DC Error
On On or
off
On On or off There is an internal
power supply fault
(for example, a
thermal fault or an
over voltage or
under voltage
condition).
1. View the system-event log (see “Event logs” on
page 38).
2. Replace the power supply (see “Removing a
hot-swap power supply” on page 123 and
“Replacing the hot-swap power supply” on page
127).
On On Off On The power is good
and the server is
running.
No action.
IBM Dynamic System Analysis
This topic provides general information about IBM Dynamic System Analysis.
IBM Dynamic System Analysis (DSA) collects and analyzes system information to
aid in diagnosing server problems. DSA collects the following information about
the server:
v System Bus information, including memory (SMI), microprocessor, and scaling
(QPI or EXA)
v Drive health information
v Event logs for ServeRAID controllers and service processors
v Hardware inventory, including PCI and USB information
v Installed applications and hot fixes
v Light path diagnostics status
v Network interfaces and settings
v Performance data and details about processes that are running
v RAID and controller configuration
v Service processor (integrated management module) status and configuration
v System configuration
v Vital product data and firmware information
For system-specific information about the action that you should take as a result of
a message that DSA generates, see Appendix A, “DSA diagnostic test results,” on
page 227.
If you cannot find a problem by using DSA, see “Solving undetermined problems”
on page 77 for information about testing the server.
Note:
Chapter 3. Diagnostics 71
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