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Table 11. Abbreviated list of POST error codes (continued)
v Follow the suggested actions in the order in which they are listed in the Action column until the problem is
solved.
v See the parts listing in the Hardware Maintenance Manual 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.
Error code Description Action
164 Memory size has changed.
1. Run the Configuration/Setup Utility
program, select Load Default Settings.
2. Reseat the DIMM.
3. Replace the following components one at
a time, in the order shown, restarting the
server each time:
a. DIMM
b. (Trained service technician only)
System board
175 Service processor flash code damaged or not
loaded.
Note: In this case, the service processor is
the optional Remote Supervisor Adapter II
SlimLine.
1. Update the Remote Supervisor Adapter
II SlimLine firmware (see the
instructions that are included with the
adapter).
2. Replace the Remote Supervisor Adapter
II SlimLine.
178 Security hardware error.
1. Run the Configuration/Setup Utility
program, select Load Default Settings,
and save the settings.
2. (Trained service technician only) Replace
the system board.
184 Power-on password damaged.
1. Run the Configuration/Setup Utility
program, select Load Default Settings,
and save the settings.
2. Reseat the battery.
3. Clear CMOS. See the Hardware
Maintenance Manual for information
about how to clear CMOS.
4. Replace the following components one at
a time, in the order shown, restarting the
server each time:
a. Battery
b. (Trained service technician only)
System board
187 VPD serial number not set.
1. Set the serial number by updating the
BIOS code level (see “Updating the
firmware” in the Hardware Maintenance
Manual.
2. (Trained service technician only) Replace
the system board.
54 ThinkServer TS100 Types 6431, 6432, 6433, 6434: Installation Guide