Minitower Design Overview - HP Deskpro EN User Manual

1.2.2

Minitower Design Overview

The minitower models of the Compaq Deskpro EN Series of Personal Computers use a
highly serviceable chassis to house the slide-out system board, expansion board cage,
power supply, and mass storage devices. The expansion board cage houses the expansion
boards.
All internal components are accessible when the access panel and the front bezel are
removed. The access panel is attached to the chassis with three easily removed thumb
screws and the front bezel is attached with tabs.
The system board is easily removed from the chassis after the access panel is removed, the
computer is turned on its side, and the expansion board cage is raised by lifting a pair of
top-mounted green levers. Once the access panel has been removed and the expansion
board cage raised, there is no need to remove any other component to access the system
board. Details of the disassembly procedure are found in Chapter 5, "Removal and
Replacement Procedures."
The drive cage is located at the top of the chassis, accommodates one internal hard drive,
and provides four bays for external access drives.
The drive cage allows drive installation without the use of rails. Two screws on each side
of the drive are used as guides, and drive release latches are used to secure the drives into
the bays. Extra guide screws (standard and metric thread) are provided on the front of the
chassis for use when installing additional drives.
The expansion board cage with the riser board mounts at a right angle to the system board.
The riser board is secured to the expansion board cage with three screws. Expansion
boards are installed at a right angle into the riser board. A single screw secures each
expansion board to the expansion board cage.
The power supply is mounted in the top rear of the chassis. It is supported by built-in
latches and held in place by three screws that are installed through the rear panel of the
chassis.
1-4 Product Description