IBM Aptiva Reference Manual page 63

Error code and description
151/163
Real Time Clock Error
Date and time incorrect
161
CMOS Battery is Bad
162
CMOS Checksum Error
162
Equipment Configuration
Error
164
Memory size changed
Here's what to do...
Enter Setup and reset the date and time.
Load the Setup default settings and reset the date
and time. If it reoccurs, replace the battery. For more
information on using the Setup Utility, see "Using the
Setup Utility" on page 71.
Load the Setup default settings and reboot the
system. Also, check the date and time. For more
information on using the Setup Utility, see "Using the
Setup Utility" on page 71.
1 This message appears together with other specific
error messages indicating the device with an error.
First, find the device error message in this table and
do the corresponding action.
2 Enter Setup and change the required settings.
For information on the Setup Utility options, see the
Aptiva online help.
If you removed the memory, this is expected.
If you did not remove the memory, do the following:
1 Make sure the DIMMs are properly installed, then
reboot the system.
2 If you still receive the error message after doing
option 1, the DIMMs may be defective. Change the
DIMMs.
For instructions on working with system board
components, see the Aptiva online help.
If any of these problems continue after taking the actions
listed, run the diagnostics programs that came with your
computer. If you need service, see "HelpWare support and
services" on page 79.
Responding to error codes
Troubleshooting
59