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Preparation For Disassembly; Front Bezel Dust Filter - HP ProDesk 400 G4 Maintenance And Service Manual

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Preparation for disassembly

Routine care, SATA drive guidelines, and disassembly preparation on page 8
Remove/disengage any security devices that prohibit opening the computer.
Remove all removable media, such as a USB flash drive, from the computer.
Turn off the computer properly through the operating system, then turn off any external devices.
Disconnect the power cord from the AC outlet and disconnect any external devices.
as the system is plugged into an active AC outlet. To prevent damage to internal components, you must
disconnect the power cord from the power source before opening the computer.
If the computer is on a stand, remove the computer from the stand.

Front bezel dust filter

Some models are equipped with an optional front bezel dust filter. You must periodically clean the dust filter
so that the dust collected on the filter does not impede air flow through the computer.
To remove, clean, and replace the dust filter:
Prepare the computer for disassembly
To remove the dust filter, use your fingers to separate the filter from the front bezel at the tab locations
shown below.
Use a soft brush or cloth to clean dust from the filter. If heavily soiled, rinse the filter clean with water.
To install the front bezel dust filter, reverse the removal procedure.
Regardless of the power-on state, voltage is always present on the system board as long
Beware of sharp edges inside the chassis.
(Preparation for disassembly on page
for initial safety procedures.
Preparation for disassembly


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This manual is also suitable for:

Prodesk 600 g4Elitedesk 705 g4

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