IBM 622138U - IntelliStation Z - Pro 6221 User Manual page 88

Table 4. POST error messages (continued)
POST message Description
162 A change in device configuration occurred. This error occurs under one or more of the
following conditions:
v A new device has been installed.
v A device has been moved to a different location or cable connection.
v A device has been removed or disconnected from a cable.
v A device is failing and is no longer recognized by the computer as being installed.
v An external device is not turned on.
v An invalid checksum is detected in the battery-backed memory.
Action: Verify that all external devices are turned on. You must turn on external devices
before turning on the computer.
If you did not add, remove, or change the location of a device, a device is probably failing.
Running the Diagnostic program might isolate the failing device. See "Creating an IBM
Enhanced Diagnostics diskette" on page 14 and "Using an IBM Enhanced Diagnostics diskette"
on page 87.
If the problem remains, call for service.
163 The time of day has not been set.
Action: Set the correct date and time. If the date and time are set correctly and saved, but
the 163 error message reappears, call for service.
You can use the computer until the system is serviced, but any application programs that use
the date and time will be affected.
164 A change in the memory configuration occurred. This message might appear after you add or
remove memory.
Note: The computer can be used with decreased memory capacity.
Action: Take the following steps to correct the problem:
1. If POST error message 289 also occurred, follow the instructions for that error message
2. If you just installed or removed memory, run the Configuration/Setup Utility program; then,
If the problem remains, call for service.
175 A vital product data (VPD) error occurred.
Action: Call for service.
176, 177, and 178 A security hardware error occurred.
Action: Check for indications that someone has tampered with the computer. If no one has
tampered with the computer, call for service.
184 The power-on password information stored in your computer has been removed.
Action: From the Configuration/Setup Utility program main menu, select System Security.
Then, follow the instructions on the screen.
If this information cannot be restored, call for service.
185 A power failure damaged the stored information about the drive-startup sequence.
Action: From the Configuration/Setup Utility program main menu, select Start Options; then,
follow the instructions on the screen.
If this information cannot be restored, call for service.
186 A system board or hardware error occurred.
Action: Call for service.
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IBM IntelliStation Z Pro Type 6221: User's Guide
first.
exit, saving the new configuration settings.
If the message appears again, shut down the computer, reseat the memory modules, and
restart the computer.