Computer Hardware Maintenance Quiz

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Questions and Answers

What is the purpose of an ESD strap when working inside a computer case?

  • To protect components from dust
  • To enhance connection speed
  • To dissipate any charge between you and the computer (correct)
  • To increase power supply efficiency

The power supply is not one of the main components visible inside a computer case.

False (B)

What should you do to understand the purpose of a cable inside a computer case?

Follow it from its source to its destination.

The _________ is clipped to the side of the computer case to prevent static discharge.

<p>ESD strap</p> Signup and view all the answers

Match the following components with their descriptions:

<p>Power Supply = Provides electrical power to the computer Motherboard = Houses the CPU and connects all components Expansion Card = Enhances the functionality of the computer Drive Bays = Holds storage devices like HDDs and SSDs</p> Signup and view all the answers

Which tool is useful for removing dust from a computer case?

<p>Compressed air (A)</p> Signup and view all the answers

Cable ties are used to organize and keep cables out of the way in a computer case.

<p>True (A)</p> Signup and view all the answers

What is stored in antistatic bags?

<p>Unused parts</p> Signup and view all the answers

A __________ can be used to check the functionality of network ports.

<p>loopback plug</p> Signup and view all the answers

Match the tool with its function:

<p>Flashlight = See inside the computer case Network cable tester = Test network connections AC outlet ground tester = Check electrical grounding Small cups or bags = Organize screws while working</p> Signup and view all the answers

What should discs be stored in to protect them?

<p>Hard plastic case (A)</p> Signup and view all the answers

It is advisable to keep hardware tools and discs in the same toolbox without protection.

<p>False (B)</p> Signup and view all the answers

What is the purpose of using a flashlight when working inside a computer case?

<p>To see inside the computer case</p> Signup and view all the answers

What is the primary purpose of the 24-pin P1 connector?

<p>To supply main power to the motherboard (C)</p> Signup and view all the answers

The 8-pin 12 V connector provides less power than the 4-pin auxiliary connector.

<p>False (B)</p> Signup and view all the answers

What is the purpose of the dual-voltage selector switch in a power supply?

<p>To set the input voltage for the power supply (C)</p> Signup and view all the answers

Changing the dual-voltage selector switch can be done while the computer is still plugged in.

<p>False (B)</p> Signup and view all the answers

What is the function of the 4-pin Molex connector?

<p>To provide power to older IDE drives and some SATA drives</p> Signup and view all the answers

What must be compatible for a proper interconnecting system in a desktop computer?

<p>desktop computer case, power supply, and motherboard</p> Signup and view all the answers

The ______ connector is used for extra 12 V power to the processor.

<p>8-pin 12 V</p> Signup and view all the answers

Match the following connectors with their descriptions:

<p>24-pin P1 = Main motherboard power connector used today 6-pin PCIe = Connector for graphics cards 4-pin Aux = Auxiliary power for processors 4-pin Molex = Used for older IDE drives</p> Signup and view all the answers

The standards that describe the size, shape, and major features of interconnected components are called __________.

<p>form factors</p> Signup and view all the answers

Which connector has four pins removed to fit into a 20-pin P1 motherboard?

<p>24-pin P1 (B)</p> Signup and view all the answers

Match the component to its description:

<p>Power Supply = Provides electrical power to the computer Motherboard = The main circuit board connecting all components Computer Case = Holds all components and provides protection Dual-Voltage Selector Switch = Sets the power supply input voltage</p> Signup and view all the answers

The Berg connector is primarily used for powering processors.

<p>False (B)</p> Signup and view all the answers

Why is it important to use a matching form factor?

<p>To enable compatibility and proper fitting of components (B)</p> Signup and view all the answers

What type of devices utilizes the 4-pin Molex connector?

<p>Older IDE drives and some SATA drives</p> Signup and view all the answers

Four screws are used to hold the power supply in the case.

<p>True (A)</p> Signup and view all the answers

What should you do before changing the dual-voltage selector switch?

<p>Turn off the computer and unplug the power supply</p> Signup and view all the answers

What was the primary addition in the ATX Version 2.1 specification to support processors requiring more power?

<p>4-pin auxiliary connector (A)</p> Signup and view all the answers

The 8-pin motherboard auxiliary connector provides less amperage than the 4-pin connector.

<p>False (B)</p> Signup and view all the answers

What is the purpose of a power supply that provides a 4-pin 12 V power cord?

<p>To supply additional power to the processor.</p> Signup and view all the answers

The ATX power supply version that introduced the 24-pin P1 connector is called ATX Version _____ .

<p>2.2</p> Signup and view all the answers

Match the following expansion connectors with their descriptions:

<p>4-pin auxiliary connector = Provides additional 12 V power to the processor 8-pin auxiliary connector = Offers higher amperage than the 4-pin connector 24-pin P1 connector = Current standard for power supply connection to motherboards 20-pin P1 connector = Original version before the 24-pin specification</p> Signup and view all the answers

Which power connector is currently used by all motherboards?

<p>24-pin P1 connector (D)</p> Signup and view all the answers

The original P1 connector had 24 pins.

<p>False (B)</p> Signup and view all the answers

What voltage levels do the extra four pins on the 24-pin P1 connector provide?

<p>12 volts, 5 volts, and 3.3 volts.</p> Signup and view all the answers

What is one function of a multimeter?

<p>Measuring voltage (B)</p> Signup and view all the answers

A power supply tester can only measure the output of one power connector at a time.

<p>True (A)</p> Signup and view all the answers

What does continuity testing determine?

<p>Whether two ends of a cable or fuse are connected without interruption.</p> Signup and view all the answers

The _____ is used to test the output of each pin on a power supply connector.

<p>multimeter</p> Signup and view all the answers

Match the following tools with their functions:

<p>Power supply tester = Tests power connectors Multimeter = Measures voltage, current, and resistance Continuity test = Checks cable connections Oscilloscope = Analyzes waveforms</p> Signup and view all the answers

Which device is used to specifically test power supply outputs?

<p>Power supply tester (C)</p> Signup and view all the answers

To measure AC voltage, the multimeter must be set to the DC setting.

<p>False (B)</p> Signup and view all the answers

What types of drives might a computer have?

<p>Hard drives, optical drives (CD, DVD, Blu-ray), or other types of drives.</p> Signup and view all the answers

When set to measure _____, a multimeter can be used to check if a cable is good.

<p>continuity</p> Signup and view all the answers

Which multimeter function would you use to determine resistance?

<p>Resistance function (A)</p> Signup and view all the answers

A multimeter can only measure one characteristic of electricity at any given time.

<p>False (B)</p> Signup and view all the answers

What is the primary use of a continuity test?

<p>To determine if there is a complete connection in a circuit.</p> Signup and view all the answers

Install the red probe at the positive (+) jack on the multimeter to measure _____ voltage.

<p>DC</p> Signup and view all the answers

Which characteristics can a multimeter measure?

<p>Voltage, current, resistance, and continuity (B)</p> Signup and view all the answers

Match the following types of voltage measurements:

<p>DC voltage = Used in batteries and electronics AC voltage = Used in household power Resistance = Opposition to current Continuity = Checks for breaks in a circuit</p> Signup and view all the answers

Flashcards

ESD Strap Purpose

Dissipates static electricity to prevent damage to computer components.

Computer Case Attachment

Attaching the ESD strap's alligator clip to the computer case.

Internal Computer Components

Power supply, motherboard, expansion cards, and drives are inside the computer case.

Cable Function

Cables carry power or data between computer components.

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Computer Opening

The process of opening a computer case to access the internal components.

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Troubleshooting tools

Tools used to diagnose and fix computer hardware problems.

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Compressed air

Used to remove dust from computer components.

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Cable ties

Used to organize computer cables.

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Flashlight

Helps see inside computer cases.

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Ground tester

Checks for safe AC outlet grounding.

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Network cable tester

Used to check network cables for functionality.

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Loopback plugs

Used for testing network ports.

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Antistatic bags

Protect components from static electricity damage.

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20-pin P1 connector

The main motherboard power connector in early ATX systems.

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24-pin P1 connector

The main motherboard power connector in modern ATX systems.

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4-pin 12V connector

Auxiliary motherboard connector for extra 12V power to the processor.

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8-pin 12V connector

Auxiliary motherboard connector for extra 12V power to the processor, offering more power than the 4-pin.

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4-pin Molex connector

Used for older IDE drives, some newer SATA drives, and video card power.

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ATX Power Supply

A power supply that follows the ATX standard.

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SATA power connectors

Power connectors for SATA devices.

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PCIe Power Connectors

Power connectors for graphics cards.

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Power Supply Tester

A tool used to check the output of a power supply's connectors, ensuring they provide the correct voltage.

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Multimeter

A versatile tool that can measure various electrical characteristics like voltage, current, resistance, and continuity. Useful for troubleshooting computer components.

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Continuity Test

Checks if there is a continuous path for electricity to flow through a cable or fuse. Useful for detecting breaks or faults.

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Voltage Measurement

Using a multimeter to check the voltage output of a power supply connector or other component.

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Hard Drive

A storage device used to store the operating system, applications, and user data.

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Optical Drive

A device used to read and write data from CDs, DVDs, or Blu-ray discs.

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Drive

A general term for a storage device used to store data in a computer.

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Power supply form factor

Standards for size, shape, screw holes, and features that ensure compatibility between desktop computer cases, power supplies, and motherboards.

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Dual-voltage selector switch

A switch on a power supply that adjusts input voltage.

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Power supply unit

Component that converts raw power into the various voltages used by the computer.

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Power cables

Cables connecting the power supply unit to the computer's components.

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Computer components form factor

Interconnected specifications for size, shape, mounting holes and features of computer components (Cases, power supplies, and motherboards).

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Desktop computer case

Enclosure that houses computer components (a form factor).

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Motherboard

Main circuit board that connects all computer components (a form factor).

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Form factor compatibility

Ensuring that computer case, power supply, and motherboard are compatible in size, shape, and features to fit together.

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Purpose of 8-pin Connector

The 8-pin connector provides more power and amps to the processor, supporting demanding needs of faster components.

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2014-pin/24-pin P1 connector

This connector is responsible for powering the motherboard. It evolved from a 20-pin design to a 24-pin design to accommodate increasing power needs.

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Why is a 24-pin P1 connector used?

The 24-pin connector provides higher voltage levels needed by faster expansion cards, like PCIe.

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P1 Connector Pinout

The 24-pin P1 connector has color-coded wires that connect to specific voltages from the power supply.

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ATX Version 2.1

This ATX specification introduced the 4-pin auxiliary connector for providing additional 12V power to the processor.

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ATX Version 2.2

This ATX specification introduced the 24-pin P1 connector to support faster PCIe cards and greater power requirements.

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Evolution of Expansion Slots

Expansion slots have evolved over time, requiring more power to accommodate faster components like PCIe cards. This led to larger connectors like the 8-pin and the 24-pin P1 connector.

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Study Notes

Introduction

  • Like other computer users, students have likely used computers for tasks like gaming, email, and spreadsheet programs.
  • This text transitions from end-user to IT support technician, focusing on personal computer support.
  • Prior computer experience is assumed, such as starting or loading software.
  • A+ certification is the industry standard for IT support technicians; this text prepares for CompTIA A+ exams (220-1101 Core 1 and 220-1102 Core 2).

Exam Tip

  • The text will highlight A+ Core 1 and Core 2 exam objectives, shown in teal and orange respectively, throughout each module or appendix.
  • Students should review the objective grid for each completed module or appendix to solidify their understanding of exam topics.

Exploring a Desktop Computer

  • Core 1 Objectives 1.1, 2.8, 3.1, 3.2, 3.3, 3.4, 3.5 are covered.
  • Students need to learn how to disassemble and reassemble a desktop computer, and understand safety procedures.
  • Safety precautions found in the appendix ("Safety Procedures and Environmental Concerns") should be followed carefully when working on a computer.
  • Computer components are listed and described in the text, and further details about each component will be discussed later in the book.
  • Computer disassembly should be done carefully; it can be a learning experience or an expensive mistake!

Protecting Yourself and the Equipment

  • Core1 Objectives 1.1 and 3.4 are covered.
  • Personal safety and equipment protection are vital when working inside a computer.
  • Loose jewelry should be removed to prevent entanglement with the wires.
  • Be cautious of sharp edges in computer cases.

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CompTIA A+ Chap 1 PDF

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