b. System board
c. Microprocessor
If the problem is solved when you remove an I/O expansion card from the blade server but the problem
recurs when you reinstall the same card, suspect the I/O expansion card; if the problem recurs when you
replace the card with a different one, suspect the system board.
If you suspect a networking problem and the blade server passes all the system tests, suspect a network
cabling problem that is external to the system.
Problem determination tips
Use these tips to determine problems with the blade server.
Because of the variety of hardware and software combinations that you can encounter, use the following
information to assist you in problem determination. If possible, have this information available when you
request assistance from IBM.
• Machine type and model
• Microprocessor and hard disk drive upgrades
• Failure symptoms
– Does the blade server fail the diagnostic tests?
– What occurs? When? Where?
– Does the failure occur on a single server or on multiple servers?
– Is the failure repeatable?
– Has this configuration ever worked?
– What changes, if any, were made before the configuration failed?
– Is this the original reported failure?
• Diagnostic program type and version level
• Hardware configuration (print screen of the system summary)
• UEFI code level
• Operating-system type and version level
You can solve some problems by comparing the configuration and software setups between working and
nonworking servers. When you compare servers to each other for diagnostic purposes, consider them
identical only if all the following factors are exactly the same in all the blade servers:
• Machine type and model
• UEFI level
• Adapters and attachments, in the same locations
• Address jumpers, terminators, and cabling
• Software versions and levels
• Diagnostic program type and version level
• Configuration option settings
• Operating-system control-file setup
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BladeCenter HS23 Blade ServerProblem Determination and Service Guide
Summary of Contents for BladeCenter HS23 1929
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