Compaq 12XL500 Models XL300, XL300A, and XL300B - Maintenance & Service Gu - Page 67

Solving Keyboard/Numeric Keypad Problems, Solving Memory Problems, Problem, Probable Cause, Solutions

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Presario 1200XL Series Model XL300, XL300A, and XL300B Solving Keyboard/Numeric Keypad Problems Some causes and solutions for possible common keyboard/numeric keypad problems are listed in the following table. Solving Keyboard/Numeric Keypad Problems Problem Probable Cause Solution(s) Embedded numeric keypad on Notebook keyboard is disabled. Num Lock function is not enabled. Press the Shift+NumLk keys to enable the Num Lock function and embedded numeric keypad. The Num Lock light on the Notebook turns on. Embedded numeric keypad is disabled and Num Lock function is on. External numeric keypad is connected to the Notebook. Disconnect the external numeric keypad from the Notebook. Solving Memory Problems Some causes and solutions for possible common memory problems are listed in the following table. Problem Memory count during Power-On Self-Test (POST) is incorrect. "Out of Memory" message is displayed on the screen or insufficient memory error occurs during operation. Solving Memory Problems Probable Cause Solution(s) Optional memory expansion card is installed incorrectly, is incompatible with the computer, or is defective. System ran out of memory for the application. Ensure that the optional memory expansion card is installed correctly. Check the application documentation for memory requirements. If necessary, install additional memory. Too many TSR (terminateand-stay-resident) applications are running. Remove from memory any TSR applications that you do not need. 30 TROUBLESHOOTING PRESARIO NOTEBOOK MAINTENANCE AND SERVICE GUIDE 1200XL SERIES

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30 T
ROUBLESHOOTING
P
RESARIO
N
OTEBOOK
M
AINTENANCE
AND
S
ERVICE
G
UIDE
1200XL S
ERIES
Presario 1200XL Series
Model XL300, XL300A, and XL300B
Solving Keyboard/Numeric Keypad Problems
Some causes and solutions for possible common keyboard/numeric keypad problems are
listed in the following table.
Solving Memory Problems
Some causes and solutions for possible common memory problems are listed in the
following table.
Solving Keyboard/Numeric Keypad Problems
Problem
Probable Cause
Solution(s)
Embedded numeric
keypad on Notebook
keyboard is disabled.
Num Lock function is not
enabled.
Press the
Shift+NumLk
keys to
enable the Num Lock function and
embedded numeric keypad. The
Num Lock light on the Notebook
turns on.
Embedded numeric
keypad is disabled and
Num Lock function
is on.
External numeric keypad is
connected to the Notebook.
Disconnect the external numeric
keypad from the Notebook.
Solving Memory Problems
Problem
Probable Cause
Solution(s)
Memory count during
Power-On Self-Test
(POST) is incorrect.
Optional memory expansion
card is installed incorrectly, is
incompatible with the
computer, or is defective.
Ensure that the optional memory
expansion card is installed
correctly.
²Out of Memory³
message is displayed
on the screen or
insufficient memory
error occurs during
operation.
System ran out of memory for
the application.
Check the application
documentation for memory
requirements. If necessary, install
additional memory.
Too many TSR (terminate-
and-stay-resident)
applications are running.
Remove from memory any TSR
applications that you do not need.