IBM 6644 User Manual
Page 57

44
User Guide
162
A change in the device 
configuration occurred
-or-
CMOS RAM checksum failure
1. Verify that all external devices are
turned on.
2. Verify that all devices are properly
installed and securely connected.
3. If you added, removed, or
changed the location of a device, 
you must save the new 
configuration in the 
Configuration/Setup Utility 
program. See “Chapter 4. Using 
the Configuration/Setup Utility 
program,” on page 27 for more 
information.
163
Clock not updating
Have the computer serviced.
164
CMOS RAM memory size does not 
match
Go to “Running the IBM Enhanced 
Diagnostics program” on page 57 for 
instructions on running memory 
diagnostics.
166
Boot block checksum error
Have the computer serviced.
167
Clock not updating
Have the computer serviced.
168
Alert-on-LAN is not working 
correctly
1. Go to “Starting and using the
Configuration/Setup Utility 
program” on page 27, and follow 
the instructions to verify that Alert 
on LAN is enabled.
2. If Alert on LAN is enabled and
you still get this error code, have 
the computer serviced.
175
EEPROM error
Have the computer serviced.
176
System cover has been removed
Type the administrator password. If the 
problem persists, have the computer 
serviced.
177
Inventory violation
Type the administrator password. If the 
problem persists, have the computer 
serviced.
183
Administration password required
Type the administrator password.
184
Asset control antenna not detected
Have the computer serviced.
186
System board or hardware security 
error
Have the computer serviced.
187
Administrator password and 
startup sequence has been cleared
Go to “Starting and using the 
Configuration/Setup Utility program” 
on page 27, and follow the instructions 
to set an administrator password and 
the startup sequence.
Code
Description
Action
