Solving System Problems 5-25
POST Error Codes and Messages
Code
Error Message
8120
IOP subsystem is not functional
8150
NVRAM Cleared by Jumper
8151
NVRAM Checksum Error, NVRAM cleared
8152
NVRAM Data Invalid, NVRAM cleared
How to Clean the Mouse
Under normal conditions, your mouse has a self-cleaning
mechanism that prevents a buildup of dust or lint around the
mouse ball and tracking mechanism. Periodically, however,
you might need to clean the mouse ball.
Use this procedure to clean your mouse:
1.
Power off your computer and any peripherals attached
to it.
2.
Invert the mouse. Locate the mouse ball cover.
3.
Rotate the ball cover counterclockwise and remove the
cover.
4.
Turn the mouse over so that the cover and ball fall into
your palm.
5.
Clean the mouse as follows.
Use tap water, or tap water and a mild detergent, to
clean the mouse ball.
Use a clean, lint-free cloth to dry the ball.
Blow into the mouse socket to remove remaining dust
or lint.
