HP Compaq dx7200 MT Reference Manual page 166

POST Error Messages
POST Error Messages (Continued)
Screen Message
162-System Options
Not Set
163-Time & Date Not
Set
164-Memory Size Error
201-Memory Error
202-Memory Type
Mismatch
C–2
Probable Cause
Configuration incorrect.
RTC (real-time clock)
battery may need to be
replaced.
Invalid time or date in
configuration memory.
RTC (real-time clock)
battery may need to be
replaced.
CMOS jumper may not
be properly installed.
Memory amount has
changed since the last
boot (memory added or
removed).
Memory configuration is
incorrect.
RAM failure.
Memory modules do not
match each other.
390812-001
Recommended Action
Run Computer Setup (F10 Setup) and
check configuration of Onboard
Devices.
Set the date and time under Control
Panel or in F10 Setup depending on
the operating system.
If the problem persists, replace the RTC
battery.
Set the date and time under Control
Panel or in F10 Setup depending on
the operating system.
If the problem persists, replace the RTC
battery.
Check for proper placement of the
CMOS jumper, if applicable.
Press the F1 key to save the memory
changes.
Run Computer Setup (F10 Setup).
Make sure memory module(s) (if any) are
installed properly.
If third party memory has been added,
test using HP-only memory.
Verify proper memory module type.
Run Computer Setup (F10 Setup) or
Windows utilities.
Ensure memory and continuity modules
are installed correctly.
Verify proper memory module type.
Remove and replace the identified faulty
memory module(s).
If the error persists after replacing
memory modules, replace the system
board.
Replace memory modules with matched
sets.
Service Reference Guide, dx7200