How To Clean The Mouse - NEC PowerMate Professional 9000E Series User Manual

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.
T
Use tap water, or tap water and a mild detergent, to
clean the mouse ball.
T
Use a clean, lint-free cloth to dry the ball.
T
Blow into the mouse socket to remove remaining dust
or lint.
Solving System Problems 5-25