Chapter 1: Quiz 1

Draws heat away from the CPU or other heat sensitive components so that it can be dissipated quickly

Heat sink

What acronym is another name for static electricity, which can damage chips and destroy motherboards?

LCD ESD CRT EMI

The standard for computer expansion cards

PCIe

A diagnostic program built into a computer to test the hardware components before the computer boots up

POST

What is the component called that usually has a dual-voltage selector switch and has cables that connect to the motherboard and internal components?

PSU PCIe DIMM HDD

What two devices in a computer should be considered "black boxes," and should never be opened due to risks involving charged capacitors?

Power supply Monitor

What is the second step in opening the case of a working computer?

Press and hold down the power button for a moment Back up important data Power down the system and unplug it Open the case cover

What tool can help discover and report computer errors and conflicts that occur when you first turn on a computer and before the operating system is launched.

Service manual OS diagnostic programs Power supply tester POST card

When troubleshooting a computer hardware problem, which tool(s) might help with each of the following problems?

The system fails at the beginning of the boot and nothing appears on the screen. You suspect the network port on a computer is not functioning. A hard drive is not working and you suspect the Molex power connector from the power supply might be the source of the problem

When handling a motherboard, cards, or drive, which statement is NOT accurate?

You should not touch any soldered components on a card. You should not touch chips on the device. You should not hold expansion cards by the edges. You should not touch edge connectors.

Which statement is NOT a good practice when working inside a computer case?

don't touch the inside of a computer that is turned on remove loose jewelry be sure to hold expansion cards by the edge connectors don't touch a microchip with a magnetized screwdriver

In what order should you install components into the case after disassembling a computer?

drives, motherboard, cards, power suppl power supply, drives, motherboard, cards motherboard, drives, cards, power supply cards, motherboard, power supply, drives

Where should you clip your ESD strap when opening a computer case?

electrical outlet computer case power supply the floor

What component is most likely to be installed in a PC, is considered primary storage, and typically stores the operating system, as well as its applications?

hard disk drive

What two form factors used by most desktop and tower computer cases and power supplies?

•ATX •microATX

What are the essential tools used by a computer hardware technician?

•ESD strap (ground bracelet) •Flat-head screwdriver •Phillips-head or cross-head screwdriver •Torx screwdriver set (size T15) •Insulated tweezers •OS recovery CD or DVD

When contacting technical support you should have the following available what?

•Laptop model and serial number •Purchaser name, phone number, address

What are the steps of removing power supply from the case?

•Look for screws that attach the power supply to the computer case •Do not remove screws that hold power supply housing together (do not take housing apart) •Sometimes power supplies are also attached to the case on the underside by recessed slots: •Turn case over and look for slots •If present, determine in which direction you need to slide the power supply to free it from the case

loopback plug

•Used to test a network port in a computer or other device to make sure the port is working •May also be used to test the throughput or speed of a port

Expansion cards

•also called adapter cards •A circuit board that provides more ports than those provided by the motherboard •Today, most ports are provided by motherboards

Power supply

•also called power supply unit (PSU): •Receives and converts house current so that components inside the case can use it •Most come with a dual-voltage selector switch ▶Allows switching input voltage from 115V to 220V

Most manufacturers or retailers of laptops offer a warranty that lasts for at least how long?

1 year

What should you always check before servicing a laptop?

Check to see if it is under warranty

What connector has 4 pins, is used for older IDE drives and some SATA drives, and can provide +5 V and +12 V power outputs?

P1 connector Molex connector SATA connector PCIe connecto

What general-purpose tool can measure characteristics of electricity in a variety of devices?

POST card cable tester multimeter loopback plug

What do you use to test the output of each power connector on a power supply?

Power supply tester

What is the connector called on a network cable that connects to an Ethernet port?

RJ-45 DB9 USB RJ-11

Smaller connectors for memory on laptops

SO-DIMM

If a ground strap is unavailable, what should be done to dissipate any ESD before working on a laptop?

Touch a non-painted metallic surface on the laptop

When is it okay to touch the inside of a computer that is turned on?

When a qualified electrician is present When disassembling the computer When reassembling the computer When using a multimeter to measure voltage output

What is the very first step that should be taken when performing work with a computer?

You should back up any important data. You should power down the system and unplug it. You should remove the power supply. You should ground yourself.

All wireless technologies are turned off resulting in no transmission or reception of wireless signals

airplane mode

Another name for a computer case?

chassis

Chassis

•It houses the power supply, motherboard, processor, memory modules, expansion cards, hard drive, optical drive, and other drives •Can be a tower case, desktop case, all-in-one case, or a mobile case

•Memory modules - random access memory (RAM):

•Temporary storage for data and instructions as they are being processed by the CPU

How many pins are used in a serial port?

9 6 25 15

Dual inline memory module (DIMM)

A memory module (stick) that installs into matching DIMM sockets found on many motherboards. The word "dual" refers to the separate pins or connections on both sides of the module and socket. Slots holding memory modules

Form factors

A set of specifications on the size, shape, and configuration of a computer hardware component such as a case, power supply, or motherboard.

A four-year-old laptop will not boot and presents error messages on screen. You have verified with the laptop technical support that these error messages indicate the motherboard has failed and needs replacing. What is the order of steps you should take to prepare for the repair?

Ask yourself if the laptop is still under warranty. - Step 1 Ask yourself if replacing the motherboard will cost more than purchasing a new laptop - Step 2 Find the service manual to show you how to replace the motherboard - Step 3 Find a replacement motherboard - Step 4

Performs most of the processing for data and instructions for the entire system

CPU (central processing unit)

A technician needs to service a laptop computer that is experiencing an intermittent problem with the display.Which of the following will be most effective at helping the technician complete the work in a timely and efficient manner? (Select TWO)

Compare the system board display connections with a properly functioning laptop. Organize and place all parts and screws and in one place. Charge the laptop battery pack so it is ready to return to the customer with a full charge. Document and label the location of the screws and cables before removing them. Provide the customer with a laptop to use while the failing unit is being repaired.

The connector for memory found on a motherboard

DIMM

You are troubleshooting a laptop with multiple sticking keys that result in misspelled words while the user types. Other than several sticking keys, the laptop appears to be functioning properly. You have cleaned the keyboard with compressed air, but the problem persists. After removing one of the key tops, it becomes apparent that a liquid was spilled into the keyboard.Which of the following is the next step in resolving the issue of sticking keys?

Disconnect and reseat the keyboard ribbon cable. Replace the laptop system board and reseat all connections. Replace the keyboard with a compatible keyboard. Clean the keyboard keys with a contact cleaner.

Transmits digital video and audio. They are slowly replacing VGA and DVI ports on computers

DisplayPort

A technician needs to service a laptop computer that is experiencing an intermittent problem with the display.What are the 2 most effective way at helping the technician complete the work in a timely and efficient manner?

Document and label the location of the screws and cables before removing them. Organize and place all parts and screws and in one place.

Which statement is NOT true regarding motherboards?

Has slots for DIMMs Has a heat sink on the PCIe slots Also called a system board Has a CPU socket

Steps opening a computer case.

1.Back up important data 2.Power down the system and unplug it •Unplug other peripherals as well 3.Press and hold the power button for about 3 seconds •This will drain the power supply 4.Have a plastic bag or cup handy to hold screws 5.Open the case cover •Some cases require you to remove the faceplate first •Remove a side panel •Locate the screws or clips that hold the side panel in place and remove

How many pins are in the power supply connector that is typically used on most motherboards today?

24-pin

How many pins are in the power supply connector that is typically used on most motherboards today

24-pin 20-pin 8-pin 15-pin

Sometimes an expansion board may have an extra PCIe power connector. This connector comes in what two different pin configurations?

4-pin 8+1-pin 8-pin 6-pin

You disassemble and reassemble a desktop computer. When you first turn it on, you see no lights and hear no sounds. Nothing appears on the monitor screen. What is the most likely cause of the problem?

A wire in the case is obstructing a fan. A memory module is not seated properly in a memory slot. Power cords to the motherboard are not connected. You forgot to plug in the monitor's external power cord.

A short-range wireless technology used to connect two devices in a small personal network

Bluetooth

What acronym is another name for static electricity, which can damage chips and destroy motherboards

ESD CRT EMI LCD

A software is needed when using a docking station, or port replicator, True or False?

False

If an internal component needs replacing, you should always replace the component rather than disable it True or False

False

Immediately after you unplug the computer from the power outlet, you're safe to begin working inside the case True or False

False

Motherboards has a heat sink is on the PCIe slots, True or False

False

Repairing a laptop is always more cost effective than buying a new one True or False

False

The LCD screen of a laptop is never considered to be a field replaceable unit True or False

False

What should be done after reassembling a laptop, but before installing the battery or AC adapter?

Gently shake the laptop to ensure nothing is loose inside of the case Press the power button to drain any electricity in the system Attack ESD strap alligator clip to a different grounding source Remove the keyboard so that you can test proper voltage on the motherboard once the battery and/or AC adapter are reconnected.

What type(s) of port transmits both digital audio and digital video with a single connector? Select all that apply.

HDMI VGA SPDIF DVI DisplayPort

Another name for hard drive?

Hard Disk Drive (HDD)

A user called to inform you that the laptop she purchased yesterday is malfunctioning and will not connect to her wireless network. You personally checked to verify that the wireless worked properly before the user left your office. The user states she rebooted the computer several times but the problem still persists.Which of the following is the first step you should take to assist the user in resolving this issue?

Instruct the user on how to reseat the internal mini-PCIe wireless adapter and try to connect to the wireless network. Have the user press the appropriate function key combination to enable the wireless radio and then attempt to connect to the wireless network. Ask the user to turn on the laptop's airplane mode and attempt to reconnect to the wireless network. Inform the user she will need to return the laptop so you can replace the internal Wi-Fi card and verify wireless functionality.

A technician has determined that a laptop keyboard will need to be removed in order to replace the laptop's CPU cooling fan. Which of the following steps will most likely be required before the technician can remove the keyboard from the laptop? (Select TWO.)

The technician will need to remove the display assembly and system board. The keyboard cable(s) will need to be disconnected from the ZIF socket(s). The keyboard bezel will need to be removed. The keyboard backlight will need to be toggled off by using the appropriate Fn keys. The keyboard cable will need to be disconnected from the mini-PCIe slot.

When removing screws while working on a laptop, what should be done with the screws?

They should be stored or labeled They should be left inside the case of the laptop They should be painted to indicate where they go They should be disposed of

You purchase a new desktop computer that does not have wireless capability, and then you decide that you want to use a wireless connection to the Internet. What are the two least expensive ways (choose two) to upgrade your system to wireless?

Trade in the computer for another computer that has wireless installed. Purchase a USB wireless adapter and connect it to the computer by way of a USB port. Purchase a second computer that has wireless capability. Purchase a wireless expansion card and install it in your system.

Functions that used to be provided by expansion cards are more often found as onboard ports today

True

Motherboards are also called a system board True or False

True

Motherboards has a CPU socket True or False

True

Motherboards has slots for DIMMs True or False

True

The motherboard sits on elevated screw holes or spacers to keep it from touching the case True or False

True

When upgrading a laptop, you should use components that are the same brand as the laptop, or use only recommended components True or False

True

Immediately after you unplug the computer from the power outlet, you're safe to begin working inside the case.

True False

What are two resources that may be useful in disassembling a laptop computer?

User manual Service manual Diagnostic software Part brochures

Which of the following statements regarding working inside a laptop computer is true?

When upgrading a laptop, you should use components that are the same brand as the laptop, or use only recommended components. Repairing a laptop is always more cost effective than buying a new one. The LCD screen of a laptop is never considered to be a field replaceable unit. If an internal component needs replacing, you should always replace the component rather than disable it.

Molly, an end user, connects an external monitor, external keyboard and mouse, and a wired network cable to her laptop while working in the office. She leaves the office frequently to meet with customers and takes the laptop with her. Disconnecting and reconnecting these external connections has become inconvenient.Which of the following devices will allow the user to disconnect and reconnect the laptop to the external connections with the least amount of effort? (Select TWO).

ZIF connector Port replicator Expansion card USB to RJ-45 dongle Docking station

What statement about an FRU is true?

a support technician should know how to replace one all types can be easily disposed of in any trash can it's easily repaired by a support technician they are not necessary for the computer's operation

The smaller form factor of the ATX. Its smaller size and reduced expansion ports helps reduce costs and power consumption

microATX

Which statement is true regarding the installation of the motherboard and connecting power?

the P1 connector is used for PCIe devices you can use an adapter to convert two 6-pin connectors to a PCIe connector there are typically three screw sets that hold the motherboard to the case a 4-pin power cord supplies supplemental power to the processor