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Chapter 5
Troubleshooting
Troubleshooting System Power
154
Sensor: Entity Presence
0x2041CB3DB3020040 FF20807115250300
If all of the CRU IDs do not appear, note the missing CRU ID. If CRU ID entries and the Alert Level
5 Missing CRU device - CPU 0 PIROM appear, go to the next step.
Step 4. Insert the processor extender board.
NOTE For this example, the processors were not removed from the processor extender board
first. Also, this example shows the expected results for an rp4440 system with two
processor modules installed. HP recommends having at least one processor module
installed (Module 0), or slightly different Alert Messages can appear.
The system fans come on and stay on when you add the processor extender board and processors.
The DF command output appears as follows:
CRU IDs:
--------
0001-Mem Extender 0002-Power Converter 0003-Power Supply 0
0004-Power Supply 1 0005-Diagnostic Panel 0006-Front Panel
0007-Disk Management 0008-Disk Backplane 0010-Processor Board
0012-Power Pod 0 0013-Power Pod 1 0032-CPU 0 PIROM
0033-CPU 1 PIROM 0036-Processor 0 RAM 0037-Processor 1 RAM
0128-DIMM0A 0136-DIMM0B 0144-DIMM0C
0152-DIMM0D 0160-DIMM1A 0168-DIMM1B
0176-DIMM1C 0184-DIMM1D 0000-Motherboard
Step 5. If all the installed hardware is functional, the system initiates POST. Go immediately into the SEL
Live Logs or the VFP to ensure that POST is initiated and proceeds without error to BCH. For the
rp4440 server, you do not normally see any POST forward progress messages on the console unless
you are in SL live mode.
Step 6. If POST does not start after five to ten seconds, suspect a problem with the processor extender
board or the processors mounted on it. Typical symptoms of this problem are an FRB2 hang alert
appearing in the SEL. Perform the following steps:
a. Reduce the processors to one module in position 0 and retest.
b. Replace the CPU module or swap the CPU module with one previously removed and try
replacing the processor extender board.
NOTE A switch on the processor extender board determines whether it runs Itanium or
PA-RISC code. Be sure to check this switch position if you get an FRB2 hang and
have previously replaced the processor extender board as part of the
troubleshooting procedure.
For the rp4440 server, this switch (switch block S5103 lowest-most switch block
when viewed with extractor handles toward you) must be set to the right
(PA-RISC).
This switch position setting is normally physically stamped on the sheet metal
cover for convenience.