4-4
Compaq Professional Workstation AP550 Maintenance and Service Guide
Table 4-1
POST Error Messages
continued
Error Code
Audible Beeps
L=Long S=Short Probable Source of Problem Recommended Action
162-System Options
Error
2S
No diskette drive or mismatch in
drive type.
Run Computer Setup or
Windows NT utilities.
162-System Options
Not Set
2S Configuration incorrect.
RTC (real-time clock) battery may
need to be replaced. Battery life
is approximately 5 years.
CMOS jumper may not be
properly installed.
System configuration has
changed since last boot.
Run Computer Setup or
Windows NT Workstation
utilities.
First, reset the date and time
under Control Panel. If the
problem persists, replace the
RTC battery. See Chapter 3,
“
Removal and Replacement
Procedures
”
for instructions.
Clear the configuration memory.
Press
F1
and save changes. If
problem persists, replace the
CMOS backup battery.
163-Time & Date Not
Set
2S
Invalid time or date in
configuration memory.
RTC (real-time clock) battery may
need to be replaced. Battery life
is approximately 5 years.
CMOS jumper may not be
properly installed.
Set the date and time under
Control Panel. Run Computer
Setup or Windows NT
Workstation utilities.
If the problem persists, replace
the RTC battery. See Chapter 3,
“
Removal and Replacement
Procedures
”
for instructions.
Clear the configuration memory.
164-Memory Size
Error
2S Memory configuration incorrect. Be sure each memory module is
installed properly. Run
Computer Setup or Windows NT
Workstation utilities.
201-Memory Error None RAM failure. Be sure each memory module is
installed properly.
Replace the RIMMs.
202-Memory Type
Mismatch
None Invalid memory configuration. Run Computer Setup or
Windows NT utilities.
Replace the RIMMs.
continued
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