Memory Problems; Usb Device Problems; Problem - Fujitsu Lifebook AH550 User Manual

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 71.
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 67.
You have a memory Check for Power On Self Test (POST) messages.
failure. See "Power On Self Test Messages" on page 88.
The device is not prop- Remove and re-install the device. See "Device Ports" on page 71.
erly installed.
80 - Troubleshooting
