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5 Troubleshooting
Preventive Maintenance Procedures
Refer to this table for preventive maintenance procedures for this HP NetServer. Be sure to turn off power to
the NetServer when cleaning it.
Component Time Frame Maintenance Procedure
Keyboard Regularly Dust with damp, lint-free cloth.
Monitor screen Regularly Use "HP Video Screen Cleaning Solution" found in 92193M
Master Clean Kit.
Mouse Regularly Refer to the mouse's manual for mouse maintenance
procedures.
Tape drive heads Monthly Use "Magnetic Head Cleaning Solution" found in the 92193M
Master Clean Kit.
Cooling fans and
grilles
6 Months Check functions of cooling fans and clean the intake openings
on the chassis of dust, lint, and other obstructions to airflow.
CAUTION DO NOT use petroleum-based cleaners (such as lighter fluid) or cleaners containing
benzene, trichlorethylene, ammonia, dilute ammonia, or acetone. These chemicals
could damage the keyboard's plastic surfaces.
HP recommends the periodic cleaning of tape heads, capstans, and guides on HP drive units and those
products using high-density data cartridges and mini-data cartridges. This maintenance procedure prolongs
tape and head life and helps reduce read/write errors due to dust and oxide
Troubleshooting Tips
WARNING Before removing a cover, always disconnect the power cords and unplug telephone
cables. Disconnect telephone cables to avoid exposure to shock hazard from
telephone ringing voltages. Disconnect the power cords to avoid exposure to high
energy levels that may cause burns when parts are short-circuited by metal objects
such as tools or jewelry.
CAUTION Do NOT operate the HP NetServer for more than 60 minutes with any cover
(including power supplies and disk drives) removed. Otherwise, damage to system
components may result due to improper cooling airflow.
However, you can safely remove a cover while the HP NetServer is running to
remove and replace PCI Hot Plug boards. For any other service activity requiring
access to the processor board or I/O board, power down the HP NetServer and
observe all safety precautions.
• For problems with the disk array controller board, refer to the appropriate HP NetRAID manuals.