Rosewill Computer Case 422 Información técnica Pagina 55
- Pagina / 150
- Tabla de contenidos
- SOLUCIÓN DE PROBLEMAS
- MARCADORES
Valorado. / 5. Basado en revisión del cliente
138
Chapter 4 • Disassembly and Power
Tech
Tip
Power Supply Form Factors
Just as motherboards come in different shapes and sizes, so do power supplies. Today’s power
supply form factors are ATX, ATX12V v1.x, ATX12V v2.x, and micro-ATX. Other form factors
include LFX12V (low profile), SFX12V (small form factor), EPS12V (used with server mother-
boards and has an extra 8-pin connector), CFX12V (compact form factor), SFX12V (small form
factor), TFX12V (thin form factor), WTX12V (workstation form factor for high-end worksta-
tions and select servers), and FlexATX (smaller systems that have no more than three expan-
sion slots). Intel, AMD, and video card manufacturers certify specific power supplies that work
with their processors and video cards. A computer manufacturer can also have a proprietary
power supply form factor that is not compatible with different computer models or other ven-
dors’ machines. Laptop power supplies are commonly proprietary.
The motherboard and power supply must be compatible
The motherboard form factor and the power supply form factor must fit in the case and
work together. For optimum performance, research what connectors and form factors are
supported by both components.
The ATX12V version 2 standard has a 24-pin motherboard connector instead of a 20-pin
version 1 connector. This did away with the need for the extra 6-pin auxiliary connector. In
addition, version 2 power supplies have a SATA power connector. Some 24-pin motherboard
connectors accept the 20-pin power supply connector. Table 4.2 lists the possible ATX power
supply connectors.
Table 4.2 ATX power supply connectors
Connector Notes Voltage(s)
24-pin Main ATX power connector to the
motherboard
+3.3, +5, +12, –12
20-pin Main power connector to the motherboard +3.3, +5, –5, +12, –12
15-pin SATA connector +3, +5, +12
8-pin 12V for CPU used with an ATX12V v1 power
supply
+12
8-pin PCIe video; connects to a PCIe video adapter.
Note that some connectors are 6+2-pin
meaning they accept either the 6- or 8-pin
cable.
+12
6-pin PCIe video; connects to PCIe video adapter +12
6-pin Sometimes labeled as AUX; connects to the
motherboard if it has a connector
+3.3, +5
4-pin
Molex Connects to peripheral devices such as hard
drives and CD/DVD drives
+5, +12
4-pin
Berg Connects to peripheral devices such as the
floppy drive
+5, +12
4-pin Sometimes labeled as AUX or 12V; connects
to the motherboard for CPU
+12
3-pin Used to monitor fan speed N/A
- 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
© 2020, manymanuals.es. Todos los derechos reservados | 0.098 s |
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentarios a estos manuales