Memory Problems; Serial, Usb Problems - Fujitsu Lifebook E752 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 Power On screen does
not show the correct amount
of installed memory.
Serial and USB Problems
You have installed a serial,
or USB device. Your LIFE-
BOOK notebook does not
recognize the device, or the
device does not seem to
work properly.
Possible Cause
Your external device is not
properly installed.
Your operating system soft-
ware is not set up with cor-
rect software driver for that
device.
Your system crashed.
Your operating system soft-
ware is not setup with correct
software driver for that
device.
Memory upgrade module
improperly installed.
You have a memory
failure.
The device is not properly
installed.
Possible Solutions
Re-install your device. See "Device Ports" on page 78.
Check your device and operating system documentation and activate the
proper driver.
Try to restart your notebook. I
Check your device and operating system documentation and activate the
proper driver.
Remove and re-install your memory upgrade module. See "Memory Upgrade
Module" on page 75.
Check for Power On Self Test (POST) messages. See "Power On Self Test
Messages" on page 97.
Remove and re-install the device. See "Device Ports" on page 78.
91 - Troubleshooting