Rosewill Computer Case 422 Technické informace

ix ContentsSCSI ID Configuration and Termination ... 276SCSI Cables ...

IndexSymbols3 UTP cable, 7354GB RAM, 2145 UTP cable, 7356 UTP cables, 7356a UTP cables, 7358-bit sound cards, 34610BaseT, 74110GBaseER Ethernet, 74210

912accountsaccountsAdministrator, accessing in Windows XP, 474email, hijacked, 834user, 608ACPI (Advanced Configuration and Power Interface), 99, 147B

913IndexauthenticationAndroid devicesapps, 482, 784-785Bluetooth, configuring, 16email, configuring, 786gaming, 484geo-tracking, 483GPS app, 483home s

914authenticationopen, 844password guidelines, 823shared key, 844single sign-on, 824two-factor, 814user IDs/passwords, 824-826wireless networks, 844-8

915Indexcableslabeling, 338ODD compatibility, 337region codes, 337sound, enabling, 343-345writeable, 335Blu-ray drives, 334BMP (bitmap) extension, 485

916cablesstraight-through CAT 5 UTP, creating, 792-794tools, 740twisted-pair, 734wiring standards, 735PATA, 260PATA IDE, 267-269pin 1, 125power suppli

917Indexcomplementary metal-oxide semiconductorrubber rollers, 133scanners, 357clear text email, 834clearingcommands, 504Event Viewer, 622client/serve

918Complete PC Restore toolComplete PC Restore tool, 617component/RGB video analog ports, 395Component Services snap-in, 606components (PCs)input devi

919Indexcooling processorscable modems, 704cables, determining direction, 127connectors, 12direct cable, 718-719docking stations, 35DSL modems, 707Int

920cooling processorsfans3-pin/4-pin, 59power consumption, 152heat sinks, 60installation clips, 60liquid cooling system, 62copper media, 734coaxial, 7

xContentsInstalling Sound Cards ... 347Soun

921IndexdirectoriesWindows Vista/7, 526-527, 553-555Windows XP, 519-520, 551-553system tray icons, customizing, 603taskbar options, 538Windows, 474com

922DirectXDirectX, 342APIs, 348diagnostics, 506DirectX Diagnostic Tool (Windows), 342dirt removal, 132-133Disable automatic restart on system failure

923Indexemergency procedures (security policies)drop-down menus, Windows dialog boxes, 480drums (laser printers), 414DRV (device driver) extension, 48

924EMI (electromagnetic interference)EMI (electromagnetic interference), 122emptying Recycle Bin, 477Enable Boot Logging, 611enable command, 506Enable

925IndexFireWireFAT32 file systems, 284FAT32 partitions, 286FATs (file allocation tables), 294fault tolerance, 291-293BIOS configuration settings, 293

926firmwarefirmwaredefined, 6printers, upgrading, 427five-wire resistive touch screen displays, 384fixboot command, 507fixed input power supplies, 151

927Indexhard drivesGG.SHDSL (Symmetric High-speed DSL), 706gain (antennas), 762game ports, 37gaming mobile devices, 484Gaming PCs, 451gateways, defaul

928hard drivesremovable, 303removing, 128repairing/recovering, 502RPMs, 254SATAinstalling, 271-274power consumption, 152SCSI, 264-266cables, 279electr

929Indeximporting Windows registry sectionsHigh-Definition Multimedia Interface (HDMI) ports, 20high-level formatting, hard drives, 293-294high-voltag

930incident reporting (security)incident reporting (security), 843-844increasingprocessor speed, 50-51Windows bootup speed, 614incremental backups, 30

xi ContentsWireless Printers ...

931IndexIRQs (Interrupt Requests)integrated drive electronics. See IDEintegrated motherboardsadvantages/disadvantages, 34-35defined, 11Integrated Serv

932ISDN (Integrated Services Digital Network)ISDN (Integrated Services Digital Network), 702-783isochronous data transfers, 30ISP (Internet Service Pr

933Indexmegabytes (MBs)Li-ion batteries, 145-146Li-ion polymer batteries, 145line conditioners, 157line-of-sight networks, 711link-local addresses, 74

934memorymemoryaccess time, 216addresses, 108buffer, ODDs, 337buying, 216-217cache, 51-52adding, 220capacities, 209CL ratings, 216-217CMOS, 100ESCD, 1

935IndexmotherboardsMicrosoft WordPad (WRI) extension, 485Microsoft Works text file format (WPS) extension, 485MIDI (musical instrument digital interf

936motherboardssetup options, 98-100Setup program. See Setup programSSDs, recognizing, 275UEFI, 96-97update compatibility, 585upgrading, 96virtualizat

937Indexnetworkstroubleshooting, 341-342writeable media, 335scanners, 354-357sound, 348-352troubleshooting, 352-354sound cards, 345-348troubleshooting

938networkstopologies, 732-734troubleshooting, 772-775types, 588, 728UDP, 777virtual machines, connecting, 594virtualization issues, 770VoIP, 777WANs,

939IndexpathsGUIs, 472hotfixes, 595installing multiple, 583interfaces, 472kernel, 6licensing virtualization, 593memory requirements, 210-211mobile dev

940PBs (petabytes)PBs (petabytes), 46PC Card/ExpressBus drives, 358PC Cards, 75, 709PCI (Peripheral Component Inter-connect), 67PCI bus speed, 51PCI e

xiiContentsChapter Summary ... 463K

941Indexpowerpolymorphic viruses, 586POP (Point of Presence), 776POP3 (Post Office Protocol version 3), 779Port Address Translation (PAT), 776portable

942powerphysical sizes, 152power good signals, 139problem symptoms, 152-153standby, 160switching, 137testers, 144triple-rail, 151uninterruptible, 158-

943Indexprogramstest pages, printing, 424thermal, 416defined, 407maintenance, 421thermal wax transfer, 411troubleshooting, 427-430upgrading, 420Window

944programsWindows compatibility, 582Windows XP Mode, 582Programs control panel, 529, 605Programs tab (Internet Explorer Internet Options), 712project

945Indexrestoringregedt32 tool, 491Regional Options control panel, 521register size (processors), 47registered memory, 208registering dll files, 512re

946restoringSystem Restore. See System RestoreSystem Restore utility, 603-604system state, 598Windows registry, 597Resume by Alarm BIOS power setting,

947IndexSetup programSecondary slave hard disk fail message, 186sectors (hard drives), 256Secure and Fast Encryption Routine (SAFER+), 844Secure Digit

948Setup programhardware monitor, 99Hyper-Threading, 99IDE devices, 99intrusion detection, 99lojack, 99number lock key, 98onboard devices, 98passwords

949IndexSSDs (solid state drives)sockets, 57-58SO-DIMMs (small-outline DIMMs), 207sample advertisements, 217Soft-off BIOS power setting, 149softwarede

950 SSDs (solid state drives)installing, 274-275MLCs, 264reliability, 263SLCs, 264static electricity, 275wear leveling, 263write amplification, 263SS

xiii ContentsLab 11.10 Modifying the Windows XP Start Button ... 551Lab 11.11 Modifying the Windows Vista/7 S

951IndexTBs (terabytes)STP (shielded twisted-pair), 734-736straight-through cables, 735straight-through CAT 5 UTP cable, creating, 792-794striped volu

952TCP (Transmission Control Protocol)TCP (Transmission Control Protocol), 777TCP/IP (Transmission Control Protocol/Internet Protocol), 745-746hijacki

953Indextroubleshootingstarting, 509Windows 7, 677-679Windows XP, 676-677System Configuration utility, 617-618System File Checker, starting, 513System

954 troubleshootingresources, 184. See also recoveryservices, 623sleep mode, 149-150softwareerror detection, 190patches/service releases, 190perform

955IndexvideoWindows, 580-581Windows XP, 581, 638UPSs (Uninterruptible Power Supplies), 158-159upstream, cable modems, 705upstream ports, 23USB (Unive

956 videomultiple displays, 392-393multi-scan monitor, 385output devices, 380-381touch screen displays, 383-384performance, 404pixels, 385-387ports,

957IndexWindowsWAPD (Web Proxy AutoDiscovery), 836warm booting, 95, 190wattage, power supplies, 151watts, 135wbadmin command, 515WDS (Windows Deployme

958 Windowspre-installation, 580pre-installation checklistbacking up data, 585clean install, 580-582data migration, 582drivers, 585file systems, 583

959IndexWindows Vistain-place upgrades, 581multiple operating systems, 583partition size, 583power-/disk-management tools, removing, 585program compat

960 Windows VistaSystem Protection, restore points, 856-857system state, backing up/restoring, 598UAC, 608update notifications, customizing, 597versi

xivContentsShutdown Problems ... 624Mon

961IndexZTI (zero-touch installations)broadband devices, 770configuring, 804defined, 752desktops, 752frequency channels, 757infrared, 776routers, 754s

xv ContentsLab 12.33 Performance and Reliability in Windows 7 ... 685Lab 12.34 Installing and Using Remote Deskt

xviContentsThe TCP/IP Model ... 745

xviiContents Chapter 15: Computer and Network Security ... 811Security Overview ...

About the AuthorCheryl Schmidt is a professor of Network Engineering Technology at Florida State College at Jacksonville. Prior to joining the faculty

CompTIA® A+Guide to PCsCOMPLETECHERYL A. SCHMIDTFlorida State College at JacksonvillePearson800 East 96th StreetIndianapolis, Indiana 46240 USASIXT

DedicationA Note to InstructorsI was a teacher long before I had the title professor. Sharing what I know has always been as natural as walking to me,

We Want to Hear from You!As the reader of this book, you are our most important critic and commentator. We value your opinion and want to know what we

It Pays to Get CertifiedIn a digital world, digital literacy is an essential survival skill.Certication proves you have the knowledge and skill to so

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IntroductionComplete CompTIA A+ Guide to PCs, Sixth Edition, is intended for one or more courses geared toward CompTIA A+ Certification and Computer R

Organization of the Textxxv • Chapter 3 deals with system configuration basics. BIOS options, UEFI BIOS, and system resources are key topics. The soft

xxviFeatures of This BookFeatures of This BookThe following key features of the book are designed to enable a better learning experience.OBJECTIVES E

Features of This BookxxviiTECH TIPS The chapters are filled with Tech Tips that highlight technical issues and certification exam topicsKEY TERMS IN

xxviiiFeatures of This BookSOFT SKILLS Technology is not the only thing you must learn and practice; each chapter offers advice, activities, and exam

Complete CompTIA® A+ Guide to PCs, Sixth EditionCopyright © 2013 by Pearson Education, Inc.All rights reserved. No part of this book shall be reproduc

Features of This BookxxixREVIEW QUESTIONS Hundreds of review questions, including true/false, multiple choice, matching, fill-in-the-blank, and open-

xxxFeatures of This BookACTIVITIES Extensive practice with Internet Discovery, Soft Skills, and Critical Thinking Skills round out your technical kno

CompTIA A+ Exam ObjectivesxxxiEXAM TIPS Read through these tips on the CompTIA A+ exams so you aren’t caught off guard when you sit for the exam Comp

xxxiiCompTIA Exam ObjectivesObjective Chapters220-8012.0 Networking2.1 Identify types of network cables and connectors. 142.2 Categorize characterist

CompTIA A+ Exam ObjectivesxxxiiiTable I-2 CompTIA A+ 220-802 Exam ObjectivesObjective Chapters220-8021.0 Operating Systems1.1 Compare and contrast th

xxxivCompTIA Exam ObjectivesObjective Chapters220-8024.3 Given a scenario, troubleshoot hard drives and RAID arrays with appropriate tools.74.4 Given

4Disassembly and PowerChapter Objectives:In this chapter you will learn:● How to prevent static electricity, RFI, and EMI from harming or interfering

120Chapter 4 • Disassembly and PowerTechTipDisassembly OverviewIt is seldom necessary to completely disassemble a computer. However, when a technician

Electrostatic Discharge (ESD)121Disassembly and Power4Adjustable wrist strapAlligator clipFigure 4.1 Antistatic wrist strap Figure 4.2 Attaching an

122Chapter 4 • Disassembly and Powercomputer is a good idea. A power supply provides a small amount of power to the motherboard even when the computer

Contents at a GlanceIntroduction ...

Tools123Disassembly and Power4Many technicians do not go on a repair call with a full tool case. Ninety-five percent of all repairs are completed with

124Chapter 4 • Disassembly and Power • AC circuit tester • Right-angled, flat-tipped, and Phillips screwdrivers • Hemostats • Pliers • Optical laser c

Cables and Connectors125Disassembly and Power4Figure 4.3 Both cable ends are the sameFigure 4.4 90˚-angled cable with a latchEach cable has a certai

126Chapter 4 • Disassembly and PowerArrowshows pin 1on the cableStripeshows pin 1on the cableArrowshows pin 1on the cableFigure 4.5 Pin 1 on a ribbon

Cables and Connectors127Disassembly and Power4Figure 4.7 Motherboard connectors for narrow cablesPin 1Notched connectorsFigure 4.8 Three motherboard

128Chapter 4 • Disassembly and PowerOn the back of the adapter,the square solder joint is pin 1Pin 1 of cable connects to pin 1on the adapter’s connec

Motherboards129Disassembly and Power4MotherboardsChapter 2 covered motherboard replacement extensively, and here we discuss issues related to buil

130Chapter 4 • Disassembly and PowerSome motherboards not only have screws that attach them to the metal standoffs but one or more retaining clips. A

Mobile Device Issues131Disassembly and Power4Figure 4.14 Scribe used to remove a laptop plastic pieceLaptop/netbook speakers commonly mount abov

132Chapter 4 • Disassembly and PowerReassemblyReassembling a computer is easy if the technician is careful and properly diagrams the dis-assembly. Si

ContentsIntroduction ...

Preventive Maintenance133Disassembly and Power4TechTipBe careful when cleaning LCD monitors and laptop displaysUse one of the following to clea

134Chapter 4 • Disassembly and PowerBasic Electronics OverviewA technician needs to know a few basic electronic terms and concepts when testing compo-

Electronics Terms135Disassembly and Power4The reading on the meter could be the opposite of what it should be if the meter’s leads are reversed. Since

136Chapter 4 • Disassembly and PowerTechTipone end of a wire to the other, it should show no resistance. If the wire has a break in it, the meter show

Power Supply Overview137Disassembly and Power4TechTipUse the right fuse or loseNever replace a fuse with one that has a higher amperage rating. You co

138Chapter 4 • Disassembly and PowerTechTipPower Supply Form FactorsJust as motherboards come in different shapes and sizes, so do power supplies. Tod

Power Supply Form Factors139Disassembly and Power4TechTipTechTipTech TipFigure 4.19 shows a few ATX power supply connectors. Figure 4.20 shows more A

140Chapter 4 • Disassembly and Power20-pin powerconnectorfrom powersupply24-pin motherboardpower connector+3.3v +3.3v+3.3v –12vGND GND+5v PS_ON#GND GN

Purposes of a Power Supply141Disassembly and Power4TechTipTechTipPower converters and Y connectors are good to have in your tool kitIn case a service

142Chapter 4 • Disassembly and PowerFigure 4.24 Front panel connections to a motherboardFigure 4.25 Another view of front panel connectionsAnother p

vContents AMD Processors ...

Power Supply Voltages143Disassembly and Power4TechTipTechTipFigure 4.26 Installing an ATX power connector on a motherboardAnother purpose for a power

144Chapter 4 • Disassembly and Powerthe device motors found in drives, the CPU, internal cooling fans, and the graphics card. Drives are now beingmad

Mobile Device Power145Disassembly and Power4Figure 4.27 Netbook batteryNiCad (nickel cadmium) batteries originally used in laptops

146Chapter 4 • Disassembly and PowerTechTipKeep Li-ion batteries coolLi-ion batteries last longer if they are kept cool (not frozen). When you s

ACPI (Advanced Configuration and Power Interface)147Disassembly and Power4TechTipAll power supplies are not created equalA technician needs to replace

148Chapter 4 • Disassembly and PowerTwo common BIOS and adapter features that take advantage of ACPI are Wake on LAN and Wake on Ring. The Wake on LAN

ACPI (Advanced Configuration and Power Interface)149Disassembly and Power4Setting DescriptionSoft-off Specifies the length of time a user must pres

150Chapter 4 • Disassembly and PowerTechTipPower values for energy-efficient monitorsAlways keep the screen saver timeout value shorter than the power

Replacing or Upgrading a Power Supply151Disassembly and Power4Replacing or Upgrading a Power SupplyPower supplies are rated in watts. Today’s typi

152Chapter 4 • Disassembly and PowerTable 4.6 Sample computer component power requirementsComponent Power consumption Motherboard (without processor)

viContentsMemory Addresses ... 108A

Solving Power Supply Problems153Disassembly and Power4 • The computer sounds a continuous beep. (This could also be a bad motherboard or a stuck key o

154Chapter 4 • Disassembly and Power • Is a surge strip used? If so, check to see if the surge strip is powered on, then try a dif-ferent outlet in th

Surge Protectors155Disassembly and Power4When the voltage falls below 110 volts AC, an undervoltage condition exists. If the volt-age is too low, a co

156Chapter 4 • Disassembly and PowerFigure 4.31 Surge protectorMost surge protectors have an electronic component called an MOV (metal oxide var

Line Conditioners157Disassembly and Power4TechTipTechTipFeature Explanation Energy absorption/dissipationThe greater the number of joules (a unit of e

158Chapter 4 • Disassembly and PowerFigure 4.32 Line conditionerUninterruptible Power Supply (UPS)A UPS (uninterruptible power supply), sometimes

Uninterruptible Power Supply (UPS)159Disassembly and Power4To install a UPS, perform the following steps: 1. Connect the UPS to a wall outlet and p

160Chapter 4 • Disassembly and PowerStandby Power Supply (SPS)A device similar to a UPS is an SPS (standby power supply). An SPS contains a battery li

Electrical Fires161Disassembly and Power4Phone Line IsolatorJust like AC power outlets, phone outlets can experience power fluctuations. A power

162Chapter 4 • Disassembly and PowerComputer Disposal/RecyclingComputers and other electronic devices can contain materials such as beryllium, chrom

viiContentsElectrical Fires ...

Soft Skills—Written Communications Skills163Disassembly and Power4Regardless of the size of a company, documentation is normally required. The documen

164Chapter 4 • Disassembly and PowerChapter Summary • Wearing a wrist strap or staying in contact with unpainted metal keeps you and the computing dev

165Review QuestionsDisassembly and Power4 • Ensure that a surge protector has a Class A rating and adheres to the UL 1449 standard. • Ensure that a UP

166Chapter 4 • Disassembly and Power 4. Which of the following can prolong the life of a computer and conserve resources? (Select all that apply.)

167Review QuestionsDisassembly and Power4 12. A computer will not power on. Which of the following would be used to check the wall outlet? [ power su

168Chapter 4 • Disassembly and Power 18. List three recommendations for good technical written communication. 19. What type of fire extinguisher c

169ExercisesDisassembly and Power4 Should you use an antistatic wrist strap when working inside a monitor? Instructor initials: _____________Lab 4.2

170Chapter 4 • Disassembly and PowerInternal Cable Removal 10. Remove all internal cables. WARNING: Do not pull on a cable; use the pull tab, if avai

171ExercisesDisassembly and Power4Motherboard 22. Make note of any motherboard switches or jumpers and indicate whether the switch position is on or

172Chapter 4 • Disassembly and PowerLab 4.3 Amps and WattageObjective: To determine the correct capacity and wattage of a power supplyParts: Power su

viiiContentsInstalling Memory Overview ... 218Removin

173ExercisesDisassembly and Power4Lab 4.5 Pin-Out DiagrammingObjective: To draw a pin-out diagram using a working cableParts: Multimeter Good cablePr

174Chapter 4 • Disassembly and Power 6. Power off the meter.Instructor initials: _____________ 7. Return all supplies to the instructor.Lab 4.6 Fu

175ExercisesDisassembly and Power4 4. If the meter has leads that attach, attach the black meter lead to the appropriate port col-ored as a black po

176Chapter 4 • Disassembly and PowerLab 4.8 Wall Outlet and Power Cord AC Voltage CheckObjective: To check the voltage from a wall outlet and through

177ExercisesDisassembly and Power4 6. Remove both leads from the wall outlet. 7. Insert the meter’s black lead into the smaller flat (hot) AC outl

178Chapter 4 • Disassembly and Power+ 5 Volts+ 12 Volts+ 4.75+ 11.4Minimum Maximum+ 5.25+ 12.6VoltagesBerg connectorMolex connectorYellow: +12VBlack:

179ExercisesDisassembly and Power4 List the BIOS options related to power management. Can ACPI be disabled via BIOS? 3. Exit the BIOS setup prog

180Chapter 4 • Disassembly and Power 6. Use the Turn off the display drop-down menu to select a time. Use the Put the computer to sleep drop-down menu

181ActivitiesDisassembly and Power4 2. Locate an Internet site to buy a computer tool kit that contains non-magnetic screwdrivers. List the URL whe

182Chapter 4 • Disassembly and Power 2. Work in teams to decide the best way to inform a customer about the differences between a line conditioner a