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LifeBook N6400 Series User’s Guide
Memory Problems
Your Main menu of the
BIOS setup utility informa-
tion, does not show the
correct amount of installed
memory.
Your memory upgrade module
is not properly installed.
Remove and reinstall your memory upgrade
module. (See Memory Upgrade Module page 48 for
more information)
You have a memory failure. Check for POST messages. (See Power On Self Test
Messages page 63 for more information)
Modem Problems
Messages about modem
operation.
Messages about operation are
generated by whichever
modem application is in use.
See your application software documentation for
additional information.
USB Device Problems
You have installed a USB
device, but your LifeBook
notebook does not recog-
nize the device, or the
device does not seem to
work properly.
The USB device is not properly
installed and/or powered.
Verify the USB is properly installed by unplugging
and replugging the plug. Also, verify that sufficient
power is available to the USB device.
The USB port is not enabled in
the BIOS.
Verify the USB port is Enabled in the BIOS. (See
Entering the BIOS Setup Utility page 27 for more
information)
The device is not properly
installed.
Remove and reinstall the device. (See Device Ports
page 50 for more information)
The device may have been
installed while an application
was running, so your notebook
is not aware of its installation.
Close the application and restart your LifeBook
notebook.
Your software may not have
correct software driver active.
See your software documentation and activate the
correct driver.
You may have the wrong I/O
address selected for your
device.
See your device documentation and software docu-
mentation to determine the required I/O address.
Change the settings in the BIOS setup utility. (See
BIOS Setup Utility page 29 for more information)
Your device and another device
are assigned the same I/O
address.
Check all I/O addresses located within the BIOS
setup utility and any other installed hardware or
software to make sure there are no duplications.
PC Card Problems
A card inserted in the PC
Card slot does not work or
is locking up the system.
The card is not properly
installed.
Remove and reinstall the card. (See Removing PC
Cards page 46 for more information)
Your software may not have
the correct driver active.
See your software documentation and activate the
correct driver.
The card may have been
installed while an application
was running, so your notebook
is not aware of its installation.
Close the application and restart your LifeBook
notebook.
You may have the wrong I/O
address selected for your PC
Card device.
See your PC Card documentation to determine
the required I/O address. Change the settings in
the BIOS. (See BIOS Setup Utility page 29 for more
information)
Problem Possible Cause Possible Solutions
N6420-Vista.book Page 58 Friday, February 16, 2007 4:48 PM