Solving Hardware Installation Problems; Solving Keyboard/Numeric Keypad Problems - Compaq 1270 Maintenance & Service Manual

"Compaq.com - Compaq Presario Series Maintenance and Service Guide - Models : 1270, 1670, and 1675
CAUTION: To prevent loss of information, always maintain an up-to-date backup of your hard drive
at all times, in case of errors or failures.
Problem
Reading hard drive takes an
unusually long time after restarting
the computer.
Hard drive error occurs.
Hard drive does not work.

Solving Hardware Installation Problems

Some common causes and solutions for hardware installation problems are listed in the following table.
Problem
A new device is not recognized as part
of the computer system.

Solving Keyboard/Numeric Keypad Problems

Some common causes and solutions for keyboard/numeric keypad problems are listed in the following table.
Problem
Embedded numeric keypad on computer
keyboard is disabled.
Embedded numeric keypad is disabled
and Num Lock function is on.
file:///C|/SERVICE%20MANUALS/COMPAQ%20_%20check...SARIO%201270,%201670,%20and%201675/solving.html (7 of 8)6/27/2004 2:46:23 AM
Solving Hard Drive Problems
Probable Cause
System entered Hibernation due to
low battery condition and is now
exiting from it.
Hard drive has bad sectors or has
failed.
Hard drive is not seated properly.
Solving Hardware Installation Problems
Probable Cause
Cable(s) of new external device are
loose or power cables are
unplugged.
Power switch of new external device
is not turned on.
Device is not seated properly.
Solving Keyboard/Numeric Keypad Problems
Probable Cause
Num Lock function is not enabled. Press the Shift+NumLk keys to
External numeric keypad is
connected to the computer.
Solution(s)
Give the system time to restore the
previously saved data to its exact
state before Hibernation.
Run Computer Checkup.
Turn off and unplug the computer,
remove the battery pack, and
remove and then reinstall the hard
drive.
Solutions(s)
Ensure that all cables are properly
and securely connected.
Turn off the computer, turn on the
external device, then turn on the
computer to integrate the device
with the computer system.
Turn off the computer and reinsert
the device.
Solution(s)
enable the Num Lock function
and embedded numeric keypad.
The Num Lock icon on the status
panel turns on.
Disconnect the external numeric
keypad from the computer.