3.2.5Cleaning the Mouse
Before cleaning the mouse, ensure that the power to the computer is turned off.
!Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out any debris from the ball socket and wipe the ball with a clean dry cloth before reassembly.
!To clean the mouse body, follow the procedures in 3.2.2.
3.3Service Considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and assembly of the computer.
3.3.1Power Supply Fan
The power supply fan is a
CAUTION: The cooling fan is off only when the computer is turned off or the power cable has been disconnected.
The cooling fan is always on in all other instances (when the computer is either in the “On,” “Standby,” or “Suspend” mode).
You must disconnect the power cord from the power source before opening the computer to prevent system board or component damage.
3.3.2Tools and Software Requirements
To service the computer, you need the following:
!Torx
!
!Diagnostics software
!Compaq
3.3.3Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads and may be of different lengths. If an incorrect screw is used during the reassembly process, it can damage the unit. Compaq strongly recommends that all screws removed during disassembly be kept with the part that was removed, then returned to their proper locations.
✎As each subassembly is removed from the computer, it should be placed away from the work area to prevent damage.
Compaq Deskpro EX and Deskpro EXS Series of Personal Computers
