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Problem
You have installed an exter-
nal keyboard or mouse, and
it does not seem to work.
You have connected an
external keyboard or a
mouse and it seems to be
locking up the system.
Memory Problems
Your System Properties
screen does not show the
correct amount of installed
memory.
USB Device Problems
You have installed a USB
device, but the notebook
does not recognize the
device, or the device does
not seem to work properly.
Possible Cause
Possible Solutions
Your external device is
Re-install your device. See "Device Ports" on page 72.
not properly installed.
Your operating system
Check your device and operating system documentation and acti-
software is not set up
vate the proper driver.
with correct software
driver for that device.
Your operating system
Check your device and operating system documentation and acti-
software is not setup
vate the proper driver.
with correct software
driver for that device.
Your system crashed.
Try to restart your notebook.
Remove and re-install your memory upgrade module.
Your memory module is
not properly installed.
See "Memory Upgrade Module" on page 68.
You have a memory
Check for Power On Self Test (POST) messages.
failure.
See "Power On Self Test Messages" on page 89.
The device is not prop-
Remove and re-install the device. See "Device Ports" on page 72.
erly installed.
81 - Troubleshooting
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