UPGRADING REPAIRING PCs

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Introduction If you’re a computer repair technician or student, you know just how crucial it is to have concise, yet detailed, technical specifications at your fingertips. It can mean the success or failure of your job. Unfortunately, most detailed hardware books are far too large to tote around in a briefcase, book bag, or in your back pocket—where you need them. Upgrading and Repairing PCs: Technician’s Portable Reference is the exception. This concise book provides just the information you need to upgrade or repair your PC, without weighing you down. Although you should consider this book to be a companion to Scott Mueller’s best-selling opus, Upgrading and Repairing PCs, you’ll also find that it stands quite well on its own. While much of the information is in the mother book, much of what is found here is presented in a boiled-down, easy-to-digest reference that will help you get the job done quickly and efficiently. You’ll also find that this portable reference contains some information not found in the main book—information that is specially geared to help the technician in the field. I recommend that you keep Upgrading and Repairing PCs, 12th Edition (ISBN 0-7897-2303-4) on your desk or workbench and Upgrading and Repairing PCs: Technician’s Portable Reference with your toolkit, so it’s ready to go with you anytime—whether it’s to a customer job site or a class.
Chapter 1 General Technical Reference 1 PC Subsystem Components Quick Reference The following table lists the major PC subsystems and how they are configured. Use this table as a shortcut to the most likely place(s) to look for problems with these subsystems. Then, go to the appropriate chapter for more information. Table 1.1 Major PC Subsystems and Where to Configure Them How Configured and See Chapters Subsystem Components Controlled for Details Motherboard CPU, RAM, ROM, Jumper blocks (CPU) 2, 3 expansion slots, BIOS (all others plus BIOS CPU on some systems) I/O ports Serial BIOS and operating system 3, 6 Parallel BIOS and operating system 3, 7 USB BIOS and operating system drivers 3, 8 PS/2 mouse MB jumper blocks or BIOS 3, 9 Keyboard BIOS 3, 9 I/O devices Modem Driver software 6 Sound card Driver software 10 Input devices Keyboard, mouse, BIOS 9 trackball, touchpad Driver software 9 Scanner Driver software 7 Standard mass storage Floppy BIOS 5 IDE BIOS and jumper blocks 4 Add-on CD-ROM, Zip, Jumper blocks and 4 mass storage LS-120, other removable media driver software SCSI Jumper blocks and add-on BIOS card or driver software 4
Page 1 and 2: UPGRADING AND REPAIRING PCs TECHNIC
Page 3 and 4: Associate Publisher Greg Wiegand Se
Page 5 and 6: Contents 1 General Technical Refere
Page 7 and 8: Contents vii IDE Hard Drive Identif
Page 9 and 10: Serial Port Configuration 172 Avoid
Page 11 and 12: Contents xi Sound Quality Standards
Page 13 and 14: About the Authors Scott Mueller is
Page 15 and 16: watch, photograph, and (occasionall
Page 17: Tell Us What You Think! As the read
Page 21 and 22: Understanding Bits, Nibbles, and By
Page 23 and 24: Note Glossary of Essential Terms 5
Page 25 and 26: Glossary of Essential Terms 7 Table
Page 27 and 28: Glossary of Essential Terms 9 Table
Page 29 and 30: Table 1.5 Hexadecimal/ASCII Convers
Page 31 and 32: Hexadecimal/ASCII Conversions 13 Ta
Page 33 and 34: Table 1.5 Hexadecimal/ASCII Convers
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Page 38 and 39: 20 Chapter 2—System Components an
Page 54 and 55: 36 Caution Chapter 2—System Compo
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50 Other Add-On Card Configuration
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52 Chapter 2—System Components an
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Chapter 3 3 BIOS Configurations and
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Where BIOS Updates Come From 71 Tab
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How to Recover from a Failed BIOS U
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Note A complete list of PnP device
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Other BIOS Troubleshooting Tips 77
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Determining the Motherboard Manufac
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Determining the Motherboard Manufac
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Table 3.8 Common Keystrokes Used to
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Phoenix BIOS Beep Codes The followi
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Port 80h Beep Code Codes Error Mess
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BIOS Configuration Worksheet 89 BIO
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BIOS Configuration Worksheet 91 Sha
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4 SCSI and IDE Hard Drives and Opti
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Cable key prevents improperly plugg
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Breaking the 504MB (528-Million-Byt
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Table 4.3 Using LBA Mode Operating
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5. Use the #4 option—View Current
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Using LBA Mode 103 Table 4.6 Why ID
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Sources for BIOS Upgrades 105 Table
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Improving Hard Disk Speed 107 Figur
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Bus-Mastering Chipsets for IDE 109
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Table 4.13 Bus-Mastering Chipsets b
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Table 4.14 Other IDE Drive Installa
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standard single-ended SCSI devices
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SCSI Drive and Device Configuration
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SCSI Drive and Device Configuration
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Following these tips will help mini
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SCSI Configuration Troubleshooting
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Using FDISK 125 Using FDISK FDISK i
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Benefits of Hard Disk Partitioning
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How FDISK and the Operating System
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How FDISK and the Operating System
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Now, the operating system can use t
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The command switches are explained
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MS-DOS Command-Line Access to CD-RO
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• Make sure the drive shows up as
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Troubleshooting Optical Drives 141
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144 Chapter 5—Floppy, Removable,
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156 • OnStream’s ADR (Advanced
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160 Table 5.13 High-Performance Tap
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166 Chapter 6—Serial Ports and Mo
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168 Table 6.2 25-Pin (PC, XT, and P
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170 Table 6.4 Overview of UART Chip
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188 (These settings require changes
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190 Chapter 7—Parallel Ports, Pri
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192 Building a Parallel Loopback Pl
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