Rosewill Computer Case 422 Información técnica Pagina 112
- Pagina / 150
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
923
Index
emergency procedures (security policies)
drop-down menus, Windows dialog
boxes, 480
drums (laser printers), 414
DRV (device driver) extension, 485
D-shell connectors, 12
DSL (digital subscriber line), 706,
783
DSL modems, 706-709
DSL Reports website, 707
DTE (data terminal equipment),
700
DTE signal connections, 700
dual-booting Windows, 592-593
dual-channel memory, 212-214
dual-core processors, 55
dual independent bus (DIB), 54
dual in-line memory modules.
See DIMMs
dual in-line package (DIP) chips,
10, 203
dual-layer technology (DL), 335
dual link DVI connectors, 20
dual-rail power supplies, 151
dual-voltage memory, 217
DUN (Dial-up Network) utility, 801
duplexing assemblies (laser print-
ers), 414
DVD drives, 334
DVDs (digital video discs), 334. See
also ODDs
burning, 337
cleaning, 133, 342-343
decoders, 342
handling, 342
labeling, 338
region codes, 337
sound, enabling, 343-345
writeable, 335
DVI ports, 19-20, 391
DVI-A connectors, 20
DVI-D connectors, 20
DVI-I connectors, 20
DVI-to-HDMI cables, 392
DVRs (digital video recorders), 452
dxdiag command, 506
dye sublimation printers, 410
Dynamic Disk Management status
state, 298
dynamic disks, 290-291
dynamic link libraries. See DLLs
dynamic RAM. See DRAM
dynamic storage, 290
E
EAP (Extensible Authentication
Protocol), 845
Ease of Access, configuring,
650-653
Easy Transfer program, 582
EBs (exabytes), 46
ECC (error correcting code), 208
ECP (electronic control package),
414
editing Windows registry, 491-492
EDO (extended data out), 205
effective permissions, 832
efficiency
displays, 396
system design components, 453
EFS (Encrypting File System), 821
EIDE (Enhanced IDE), 257
electricity
AC/DC, 134
blackouts, 155
brownouts, 155
capacitors, 135
continuity checks, 136-137
current, measuring, 135
fires, 161
line conditioners, 157
phone line isolators, 161
power consumption, 151-152
power, measuring, 135
power supplies, 137
AC voltage, 137
auto-switching, 151
cables, 454
comparing, 147
connectors, 140
converting AC to DC, 141
cooling function, 143
DC voltage distribution, 142
design components, 454-455
disassembly, 153
dual-rail, 151
fixed input, 151
form factors, 138-139
functions, 141
mobile devices, 152
physical sizes, 152
power good signals, 139
problem symptoms, 152-153
standby, 160
switching, 137
testers, 144
triple-rail, 151
uninterruptible, 158-159
upgrading/replacing,
151-152
voltages, 143
watts, 151
resistance, 135
sags, 155
spikes, 155
standby power, 134
surge protection, surge
protectors, 156-157
surge protectors, 155-157
surges, 155
troubleshooting, 153-154
grounding problems, 154
overvoltage, 154-155
power good signals, 154
problem sources, finding,
153
undervoltage, 155
wall outlets, testing, 153
voltage, 134-135
volts, 134
electromagnetic interference.
See EMI
electronic control package (ECP),
414
electronic key cards, 813
electronics donation and recycling
website, 381
electrostatic discharge. See ESD
email, 782
forwarding, 783
mobile devices
configuring, 786-787
security, 834
security policies, 812
servers, 782
emergency procedures (security
policies), 812
- Guide to PCs 2
- Complete CompTIA 3
- Contents at a Glance 4
- Contents 10
- Contents 11
- About the Author 19
- Dedication 20
- Acknowledgments 20
- We Want to Hear from You! 21
- Reader Services 21
- It Pays to Get Certified 22
- CompTIA Career Pathway 23
- Steps to Certication 23
- Content Seal of Quality 24
- Why CompTIA? 24
- Introduction 25
- Organization of the Text 26
- Features of This Book 27
- IT work 31
- CompTIA A+ Exam Objectives 32
- CompTIA Exam Objectives 33
- Disassembly 36
- Disassembly Overview 37
- Electrostatic Discharge (ESD) 37
- Opening the Case 41
- Cables and Connectors 41
- Snug connections 43
- Storage Devices 45
- Motherboards 46
- Mobile Device Issues 47
- Reassembly 49
- Preventive Maintenance 49
- Basic Electronics Overview 51
- Electronics Terms 51
- Good connection Broken wire 53
- Power Supply Overview 54
- Power Supply Form Factors 55
- Tech Tip 56
- Purposes of a Power Supply 58
- Power Supply Voltages 60
- Mobile Device Power 61
- Keep Li-ion batteries cool 63
- Power Interface) 64
- Windows power management 65
- Watch the wattage 68
- Solving Power Supply Problems 70
- Adverse Power Conditions 71
- Adverse Power Protection 72
- Surge Protectors 72
- Line Conditioners 74
- Figure 4.32 Line conditioner 75
- Figure 4.33 Sine wave and 75
- Standby Power Supply (SPS) 77
- Electrical Fires 78
- Computer Disposal/Recycling 79
- Chapter Summary 81
- Review Questions 82
- Exercises 85
- External Cables 86
- Computer Case Removal 86
- Adapter Placement 86
- Motherboard 88
- Lab 4.3 Amps and Wattage 89
- Lab 4.4 Continuity Check 89
- Lab 4.5 Pin-Out Diagramming 90
- Lab 4.6 Fuse Check 91
- Lab 4.7 Using a Multimeter 91
- Figure 4.38 AC outlet 93
- GND to hot 120VAC 93
- GND to neutral 0VAC 93
- Hot to neutral 120VAC 93
- +5 volts 95
- +12 volts 95
- Activities 97
- Critical Thinking Skills 99
- A+ Certification Exam Tips 99
- Complete PC Restore tool 107
- FireWire 114
- IRQs (Interrupt Requests) 120
- PBs (petabytes) 129
- Setup program 136
- SSDs (solid state drives) 138
- SSDs (solid state drives) 139
- TBs (terabytes) 140
- troubleshooting 143
- video 145
- Windows 147
- Windows Vista 148
- Windows Vista 149
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