Compaq Deskpro 4000N - Desktop PC, Maintenance & Service Manual

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1-4 Product Description
Table 1-2
Continued
Item Description
I/O ports , standard Serial (2)
Parallel
USB (2)
AUI
RJ-45
Monitor
Keyboard
Mouse
Power supply (2,000 volt surge suppressant capability) 76-watt, 115 VAC, 2.5 A/230 VAC, 1.25 A
Power supply fan Standard
Internal piezo speaker Standard
Internal battery Standard
Operating System
Deskpro 4000S
Deskpro 4000N
Windows 95
Windows NT
Intelligent Manageability features Asset Management
Fault Management
Security Management
Configuration Management
Integration Management
Two-button mouse Standard
Compaq Enhanced keyboard with MS Windows-specific keys Standard
1.3 Design Overview
The Compaq Deskpro 4000S and 4000N Series of Personal Computers are designed to use a pan-
type chassis to house the system board, expansion boards, power supply, and mass storage devices.
The chassis is supplemented by a riser board attached to the expansion board cage. The expansion
board cage provides a mounting location for the expansion board.
All internal components are accessible when the hood, held in place by two latches, is removed.
Lifting the Easy Access Drive Bay and Easy Access Power Supply to their upright positions allows
full access to the system board. The front bezel is mounted to the front of the system unit cover. Torx
T-15 screws are used to secure the Easy Access Drive Bay hinge bar and the Easy Access Power
Supply hinge bracket.
The system board is easily removed from the chassis after the hood and expansion board cage are
removed. Details of the disassembly procedure are found in Chapter 5, “Removal and Replacement
Procedures.”
The removable expansion board cage mounts perpendicular to the system board. The expansion
board installation is horizontal into the cage and is secured with a single screw.
The Easy Access Power Supply is mounted in the right rear corner of the chassis and pivots using a
pair of built-in hinges. The AC input cord must be removed prior to disconnecting the power supply
from the system board.