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HP dx2420 Service Reference Guide: HP Compaq dx2420 Business PC - Page 6

Appendix C, Troubleshooting, Specifications, Index, Before You Call for Technical Support

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Japanese Power Cord Requirements 76 Country-Specific Requirements ...77 Appendix C Troubleshooting Safety and Comfort ...78 Before You Call for Technical Support 78 Helpful Hints ...79 Solving General Problems ...80 Solving Hardware Installation Problems 83 Interpreting POST Audible Codes ...85 Contacting Customer Support ...86 Appendix D Specifications Index ...89 vi

Section	Page
Installing and Customizing the Software	7
Installing and Customizing the Software	7
Installing the Operating System	7
Downloading Microsoft Windows Updates	7
Installing or Upgrading Device Drivers	8
Customizing the Monitor Display	8
Computer Setup (F10) Utility	9
Computer Setup (F10) Utilities	9
Using Computer Setup (F10) Utilities	9
Computer Setup—Main	10
Computer Setup—Advanced	11
Computer Setup—Power	13
Computer Setup—Boot	14
Computer Setup—Exit	14
Recovering the Configuration Settings	15
Computer Diagnostic Features	16
HP Insight Diagnostics	16
Accessing HP Insight Diagnostics	16
Survey Tab	17
Test Tab	18
Status Tab	18
Log Tab	19
Help Tab	19
Saving and Printing Information in HP Insight Diagnostics	20
Downloading the Latest Version of HP Insight Diagnostics	20
Protecting the Software	20
HP Backup and Recovery Manager	21
Serial and Parallel ATA Drive Guidelines and Features	22
SATA Hard Drives	22
SATA Hard Drive Cables	23
SATA Data Cable	23
SATA Power Cable	23
PATA Device Information	24
ATA SMART Drives	24
Hard Drive Capacities	24
Identifying the Chassis, Routine Care, and Disassembly Preparation	25
Chassis Designation	25
Microtower (MT)	25
Electrostatic Discharge Information	26
Generating Static	26
Preventing Electrostatic Damage to Equipment	26
Personal Grounding Methods and Equipment	27
Grounding the Work Area	27
Recommended Materials and Equipment	27
Operating Guidelines	28
Routine Care	29
General Cleaning Safety Precautions	29
Cleaning the Computer Case	29
Cleaning the Keyboard	29
Cleaning the Monitor	30
Cleaning the Mouse	30
Service Considerations	30
Power Supply Fan	30
Tools and Software Requirements	30
Screws	31
Cables and Connectors	31
Hard Drives	31
Lithium Coin Cell Battery	32
Removal and Replacement Procedures Microtower (MT) Chassis	33
Serial Number Location	33
Preparation for Disassembly	34
External Security Devices	35
Cable Lock	35
Padlock	35
HP Business PC Security Lock	36
Computer Access Panel	38
Front Bezel	39
Removing Bezel Blanks	40
Cable Management	41
Cable Connections	42
Memory	43
Expansion Cards	46
Drives	50
System Board Drive Connections	52
Drive Positions	53
Removing an Optical Drive	54
Installing an Optical Drive into the 5.25-inch Drive Bay	55
Removing an External 3.5-inch Drive	56
Installing a Drive into the 3.5-inch External Drive Bay	57
Removing an Internal 3.5-inch Hard Drive	59
Installing an Internal 3.5-inch Hard Drive	61
Front USB Panel	64
Power Switch/LED Assembly	65
Heat sink	66
Processor	67
Rear Chassis Fan	68
Power Supply	69
System Board	70
Battery	71
Type 1 Battery Holder	72
Type 2 Battery Holder	72
Type 3 Battery Holder	73
Connector Pin Assignments	74
Keyboard	74
Mouse	74
Ethernet RJ-45	75
Parallel Interface	75
Serial Interface, Powered and Non-Powered	76
USB	76
Microphone	76
Headphone	76
Line-in Audio	77
Line-out Audio	77
Monitor	77
24-Pin Power	78
4-Pin Power (for CPU)	78
SATA Data and Power	78
PCI Express	79
PCI Express	80
PCI Express Mini Card	81
Power Cord Set Requirements	82
General Requirements	82
Japanese Power Cord Requirements	82
Country-Specific Requirements	83
Troubleshooting	84
Safety and Comfort	84
Before You Call for Technical Support	84
Helpful Hints	85
Solving General Problems	86
Solving Hardware Installation Problems	89
Interpreting POST Audible Codes	91
Contacting Customer Support	92
Specifications	93

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Japanese Power Cord Requirements

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Country-Specific Requirements

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Appendix C

Troubleshooting

Safety and Comfort

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Before You Call for Technical Support

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Helpful Hints

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Solving General Problems

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Solving Hardware Installation Problems

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Interpreting POST Audible Codes

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Contacting Customer Support

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Appendix D

Specifications

Index

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