Rosewill Computer Case 422 Información técnica Pagina 131
- Pagina / 150
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
942
power
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
voltage, 135
voltages, 143
watts, 151
surge protection, 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
under-voltage, 155
wall outlets, 153
USB ports, 24
voltage, 134-135
volts, 134
Windows 7, 149-150
Windows management settings,
148
Windows Vista/7 schemes, 532
Windows XP schemes, 522
power good signals, 139
testing, 154
troubleshooting, 154
Power line DSL (PDSL), 706
Power on by Ring, Resume by Ring,
or Wakeup BIOS power setting,
149
Power on Function BIOS power
setting, 149
power-on self-test. See POST
Power Options control panel, 521
power ratings (speakers), 350
power users, 825
PPGA (plastic pin grid array)
sockets, 57
PPP (Point-to-Point Protocol), 783
PPT/PPTX (Microsoft PowerPoint)
extension, 485
preboot execution environment
(PXE boot), 590
pre-installation checklist
(Windows), 580
backing up data, 585
clean install, 580-582
data migration, 582
drivers, 585
file systems, 583
hardware requirements,
584-585
multiple operating systems,
583
partition size, 583
power-/disk-management tools,
removing, 585
program compatibility, 582
upgrading, 580-581
virus scans, 585
preparations, disassembly, 122
presentation layer (OSI model), 745
preventing ESD, 120-121
preventive maintenance
adapters, removing, 133
aerosol can disposal, 133
boot inspection, 132
contacts, 133
defined, 132
dirt removal, 132-133
displays, 395-396
floppy drives, 132
hard drives, 299-301
backups, 301-303
implementing, 191
inventory, taking, 133
keyboards, 18, 132
kits, 132
LCD monitors, 133
mice, 18
modems, 709
MSDs, 133
ODDs, 342-345
operating systems, 632
optical lens, 133
outside case, 132
printers, 420-421
rubber rollers, 133
scanners, 357
updates, checking, 133
viruses, 133
primary corona (laser printers), 414
Primary master hard disk fail
message, 186
primary partitions, 287
Primary slave hard disk fail
message, 186
print drivers, 424
print engine (printers), 404
print jobs, reordering, 422
printed materials security, 821
printers
categories, 406-407
default, configuring, 422
DPI, 409-410
dye sublimation, 410
impact, 407-408
re-inking, 418
troubleshooting, 428
ink cartridges, 417-418
inkjet, 409-411
maintenance, 420
refilling cartridges, 418
troubleshooting, 429
installing, 418-420
Windows, 422
large format inkjet, 411
laser. See laser printers
memory, upgrading, 420
network
configuring, 771-772
troubleshooting, 775
networking, 405
networks, 800-801
paper, 416-417
storage tray/feeder upgrades,
420
stuck, troubleshooting, 427
troubleshooting, 428
ports, 405
troubleshooting, 427
print spoolers, 424-425
properties, 423
solid ink, 410
subsystems, 404-405
- 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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