Rosewill Computer Case 422 Informations techniques Page 98
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Noté. / 5. Basé sur avis des utilisateurs
181
Activities
Disassembly
and Power
4
2. Locate an Internet site to buy a computer tool kit that contains non-magnetic screwdrivers.
List the URL where you found the tool kit and at least three sizes of screwdrivers or bits
provided.
3. Locate a surge protector for the whole house. Determine if it replaces the need for indi-
vidual surge protectors.
Write the name and part number as well as your findings.
4. A customer owns a Belkin 12-outlet surge protector with phone/Ethernet/coaxial protec-
tion and an extended cord.
What is the warranty amount for this surge protector and at what URL did you find this
information?
5. A customer has a Rosewill CAPSTONE-450 power supply.
What is the power supply’s maximum power output (in watts) and how many amps are
provided for +3.3V, +5V, and +12V (combined amount for +12V)? Write the URL where
you found this information as well.
6. A customer has an Enermax Liberty ELT500AWT power supply.
Does this power supply comply with the ATXV12 version 2.2 or higher specification?
How many PCIe connectors are provided?
Does the power supply have any SATA power connectors? If so, how many?
At what website did you find this information?
7. A customer owns a Toshiba Satellite R845-ST6N02 laptop.
What type of battery provides power for the longest amount of time for this model? Write
the URL where you found this information.
8. Your company has a Tripp Lite Smart 700 UPS.
What are the part number and cost for a replacement battery? At what website did you
find this information?
9. Locate an A-B-C fire extinguisher.
Give the model, cost, and URL where you found this information.
Soft Skills
Objective: To enhance and fine-tune a future technician’s ability to listen, communicate
in both written and oral form, and support people who use computers in a
professional manner
Activities:
1. Using the information gathered in Critical Thinking Skills Activity 1 or researching an
appropriate replacement power supply for any computer, prepare a business proposal for
the power supply as if you were offering it to a customer. Present your proposal to the
class.
- 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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