Compaq EX Series, EXS Series 4.5 Access Panel

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 4-5

4.5 Access Panel

1. Prepare the computer for disassembly (Section 4.2).

WARNING: Power is continuous to the system board and power supply even when the power

switch is turned off. To prevent damage to t he unit, disconnect the power cord from the power

source or the unit before beginning disassem bly procedures.

2. Lay the computer down on its large base for greater stability.

3. Loosen the two thumbscrews that secure the access panel to the back of the computer

chassis.

4. Slide the access panel backward approximately 1-inch (2.5-cm); then lift it up and off

the unit.

To replace the access panel, reverse the previous steps.

Contents

Main Page Notice WARNING: CAUTION: C chapter 4 Removal and Replacement Procedures chapter 5 Connectors & Jumpers chapter 6 Specifications preface ABOUT THIS GUIDE Symbols and Conventions ! Technician Notes ! Locating Additional Information Page 1.1 Computer Features 1.1.1 Front Panel Controls and LEDs 1.1.2 Rear Panel Connectors Ref. Component Ref. Component 1.1.3 Drive Positions 1.2 Serial Number Location Page 2.1 System Unit 2.2 Mass Storage Devices 2.3 Cables 2.4 Standard, Memory, and Expansion Boards Number Warranty Description Spare Part Tier 2.5 Miscellaneous Plastics Kit 2.6 Keyboards (not illustrated) 2.7 Miscellaneous Screw Kit (not illustrated) Page chapter 3 R EMOVAL & R EPLACEMENT P 3.1 Electrostatic Discharge Information 3.1.1 Generating Static 3.1.2 Preventing Electrostatic Damage to Equipment 3.1.3 Personal Grounding Methods and Equipment Static Shielding Protection Levels 3.1.4 Grounding Workstations 3.1.5 Recommended Materials and Equipment 3.2 Routine Care 3.2.1 General Cleaning Safety Precautions 3.2.2 Cleaning the Computer Case 3.2.3 Cleaning the Keyboard 3.2.4 Cleaning the Monitor 3.2.5 Cleaning the Mouse 3.3 Service Considerations ! chapter 4 REMOVAL AND REPLACEMENT PROCEDURES 4.1 Disassembly Sequence Chart 4.2 Disassembly Preparation Page 4.4 Cable Lock 4.5 Access Panel 4.6 Front Bezel 4.7 Power Button 4.8 Subpanel and Bezel Blanks 4.9 Power Switch Assembly 4.10 Mass Storage Devices Drive Positions Page 4.10.1 Removing an Internal 3.5-Inch Hard Drive 4.10.2 Removing an External 5.25-Inch Drive 4.10.3 Removing an External 3.5-Inch Drive Page Page 4.11.2 Removing a PCI Expansion Board 4.11.3 Installing a PCI Expansion Board Page 4.12 System Memory DIMMs Memory Module Installation Page 4.13 Graphics Cards Page Page 4.13.2 AGP Card with a Type I Retention Mechanism Page 4.13.4 AGP Card with a Type 2 Retention Mechanism Page 4.14 Processor Page 4.15 System Board 4.16 Battery 4.17 Chassis Fan Assembly 4.18 Power Supply chapter 5 CONNECTORS AND JUMPERS 5.1 System Board 5.1.1 Connectors and Jumpers 5.1.2 Clearing CMOS 5.1.3 Disabling or Clearing the Power-On and Setup Passwords 5.2 Hard Drive Jumper Settings 5.2.1 Seagate, Quantum, and Western Digital 5.2.2 Maxtor Maxtor Ultra ATA Hard Drive Jumper Settings Definition J50 J48 J46 J44 J42 chapter 6 S 6.1 Specifications 6.1.1 System 6.1.2 System Interrupts Hardware IRQ System Function 6.1.3 System DMA Hardware DMA System Function 6.1.4 ICH Fixed I/O Registers Page ICH Fixed I/O Registers cont 6.1.5 System Memory Map Size Memory Address System Function 6-6 Specifications 6.2 Drives 6.2.1 1.44-MB Diskette Drive 6.2.2 Ultra ATA Hard Drives 10.0 GB 15.0 GB 6.2.3 CD-ROM Drives 48X Max 6.3 Compaq Keyboard 6.4 Scroll Mouse 6.5 Supported Graphics Resolutions 6.5.1 Intel 3D Graphics Mode Color Depth Colors 256 65K 16.7M 6.5.2 nVIDIA M64 Pro Index A B C D M N P R S