Routine Care; General Cleaning Safety Precautions; Cleaning The Computer Case; Cleaning The Keyboard - HP EliteDesk 405 G4 Desktop Mini Maintenance And Service Manual

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Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the
keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also
restricts airflow.
Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign matter
can block the vents and limit the airflow. Be sure to unplug the computer before cleaning the air vents.
Never operate the computer with the cover or side panel removed.
Do not stack computers on top of each other or place computers so near each other that they are subject
to each others re-circulated or preheated air.
If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must be
provided on the enclosure, and the same operating guidelines listed above will still apply.
Keep liquids away from the computer and keyboard.
Never cover the ventilation slots on the monitor with any type of material.
Install or enable power management functions of the operating system or other software, including
Sleep states.

Routine care

General cleaning safety precautions

1.
Never use solvents or flammable solutions to clean the computer.
2.
Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use
the cloth on the component.
3.
Always unplug the computer when cleaning with liquids or damp cloths.
4.
Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5.
Disconnect the keyboard before cleaning it.
6.
Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the computer case

Follow all safety precautions in
To clean the computer case, follow these procedures:
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with a cloth
or swab dampened with clear water.
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed because the alcohol
evaporates quickly and does not leave a residue.
After cleaning, always wipe the unit with a clean, lint-free cloth.
Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents and
limit the airflow.

Cleaning the keyboard

Follow all safety precautions in
General cleaning safety precautions on page 11
General cleaning safety precautions on page 11
before cleaning the computer.
before cleaning the keyboard.
Routine care
11

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