• Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
• See
Chapter 4 “Parts listing, Lenovo System x3550 M3 Type 4254 and 7944” on page 403 to determine which
components are customer replaceable units (CRU) and which components are field replaceable units (FRU).
• If an action step is preceded by “(Trained service technician only),” that step must be performed only by a
trained service technician.
• Go to the IBM support website at
http://www.ibm.com/supportportal/ to check for technical information, hints,
tips, and new device drivers or to submit a request for information.
Error code
Description
Action
0018005 Microprocessors have mismatched number
of COREs.
1. Run the Setup utility and select System
Information ➙ System Summary ➙ Processor
Details to view the microprocessor information to
compare the installed microprocessor
specifications.
2. (Trained service technician only) Remove and
replace one of the microprocessors so that they
both match.
0018006
Microprocessors have mismatched QPI
speed.
1. Run the Setup utility and select System
Information ➙ System Summary ➙ Processor
Details to view the microprocessor information to
compare the installed microprocessor
specifications.
2. (Trained service technician only) Remove and
replace one of the microprocessors so that they
both match.
0018007 Microprocessors have mismatched power
segments.
1. Run the Setup utility and select System
Information ➙ System Summary ➙ Processor
Details to view the microprocessor information to
compare the installed microprocessor
specifications.
2. (Trained service technician only) Remove and
replace one of the microprocessors so that they
both match.
0018008 Microprocessors have mismatched internal
DDR3 frequency.
1. Run the Setup utility and select System
Information ➙ System Summary ➙ Processor
Details to view the microprocessor information to
compare the installed microprocessor
specifications.
2. (Trained service technician only) Remove and
replace one of the microprocessors so that they
both match.
308 System x3550 M3Problem Determination and Service Guide
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