Lenovo 3856 - Manuals
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Manuals:
Manual Lenovo 3856
Summary
Contents Important safety information . . . . . . v Service and upgrades . . . . . . . . . . . . . v Static electricity prevention . . . . . . . . . . . v Power cords and power adapters . . . . . . . . viExtension cords and related devices . . . . . . . viPlugs and outlets. . . . . . . . . . . . . ....
Replacing the WiFi card module . . . . . . 64 Installing or removing the rear WiFi antenna . 66 Installing or removing two rear WiFiantennas . . . . . . . . . . . . . . . 67 Replacing the system fan. . . . . . . . . 69 Replacing the internal speaker. . . . . . . 72 Replacing the keyboard or mouse . ...
Appendix B. Regulatoryinformation . . . . . . . . . . . . . 123 Export classification notice . . . . . . . . . . 123 Electronic emissions notices . . . . . . . . . 123 Federal Communications CommissionDeclaration of Conformity . . . . . . . . 123 Additional regulatory information . . . . . . . 125 A...
Important safety information CAUTION:Before using this manual, be sure to read and understand all the related safety information for thisproduct. Refer to the information in this section and the safety information in the Safety, Warranty, and Setup Guide that you received with this product. Reading ...
or CRU, do not open the static-protective package containing the part until the instructions direct youto install it. When you handle options or CRUs, or perform any work inside the computer, take the following precautionsto avoid static-electricity damage: • Limit your movement. Movement can cause ...
are used, the load should not exceed the power strip input rating. Consult an electrician for more informationif you have questions about power loads, power requirements, and input ratings. Plugs and outlets If a receptacle (power outlet) that you intend to use with your computer equipment appears t...
increase the risk of a battery short circuit, which could shorten the life of the battery and also canpose a safety hazard. Do not let rechargeable Lithium-Ion batteries completely discharge or storethese batteries in a discharged state. Rechargeable battery notice DANGER Do not attempt to disassemb...
your computer within two feet of high-traffic areas. If you must operate your computer in or near a high-trafficarea, inspect and, if necessary, clean your computer more frequently. For your safety and to maintain optimum computer performance, always follow these basic precautionswith your desktop c...
Laser compliance statement CAUTION:When laser products (such as CD-ROMs, DVD drives, fiber optic devices, or transmitters) areinstalled, note the following: • Do not remove the covers. Removing the covers of the laser product could result in exposure to hazardous laser radiation. There are no servic...
Chapter 1. Product overview This chapter provides information about the computer features, specifications, software programs providedby Lenovo, and locations of connectors, components, parts on the system board, and internal drives. Features This section introduces the computer features. The informa...
Specifications This section lists the physical specifications for your computer. Dimensions Width: 179 mm (7.05 inches) Height: 34.5 mm (1.36 inches) Depth: 182 mm (7.17 inches) Weight Maximum configuration as shipped: 4.86 kg (10.71 lb) (with package) Maximum configuration as shipped: 4.14 kg (9.13...
Table 1. Programs in the Lenovo ThinkVantage Tools program Program Icon name Communications Utility Web Conferencing Fingerprint Software Fingerprint Reader Lenovo Solution Center System Health and Diagnostics Password Manager Password Vault Power Manager Power Controls Recovery Media Factory Recove...
An introduction to Lenovo programs This topic provides a brief introduction to some Lenovo programs. Note: Depending on your computer model, some of the programs might not be available. • Communications Utility The Communications Utility program provides a central location for integrated camera and ...
• Lenovo Solution Center The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. Itcombines diagnostic tests, system information collection, security status, and support information, alongwith hints and tips for maximum system performance. • • Lenovo Support The...
• System Update The System Update program helps you keep the software on your computer up-to-date by downloadingand installing software update packages (Lenovo programs, device drivers, UEFI BIOS updates, andother third party programs). • View Management Utility The View Management Utility program e...
Locating connectors on the rear of your computer Figure 2 “Rear connector locations” on page 10 shows the locations of the connectors on the rear of yourcomputer. Some connectors on the rear of your computer are color-coded to help you determine where toconnect the cables on your computer. Figure 2....
Locating components Figure 3 “Component locations” on page 11 shows the locations of the various components in yourcomputer. To remove the computer cover, see “Removing the computer cover” on page 33. Figure 3. Component locations 1 Computer cover 7 Power switch board 2 System fan 8 ac power adapter...
3 Heat sink 9 WiFi card module 4 Microprocessor 10 Battery 5 Cover presence switch (Intrusion switch) 11 Internal speaker 6 Memory module(s) 12 Hard disk drive or solid-state drive Locating parts on the system board Figure 4 “System board part locations” on page 12 shows the locations of the parts o...
Machine type and model label The machine type and model label identifies your computer. When you contact Lenovo for help, the machinetype and model information helps support technicians to identify your computer and provide faster service. The following is a sample of the machine type and model labe...
Chapter 2. Using your computer This chapter provides information on using some of the computer components. Frequently asked questions The following are a few tips that will help you optimize the use of your computer. Can I get my user guide in another language? The user guide is available in various...
Using the keyboard Depending on your model, your computer comes with either a standard keyboard or a fingerprint readerkeyboard. The Microsoft Windows shortcut keys are provided on both keyboard types. This section provides information about the following topics: • “Using Windows shortcut keys” on p...
Using the wheel mouse The wheel mouse has the following controls: 1 Primary mouse button Use this button to select or start a program or menu item. 2 Wheel Use the wheel to control the scrolling action of the mouse. The direction in which yourotate the wheel controls the direction of the scrolling a...
• Do not write or stick paper on the disc. • Do not scratch or mark the disc. • Do not place or store the disc in direct sunlight. • Do not use benzene, thinners, or other cleaners to clean the disc. • Do not drop or bend the disc. • Do not insert damaged discs into the drive. Warped, scratched, or ...
Chapter 3. You and your computer This chapter provides information about accessibility, comfort, and relocating your computer to othercountries or regions. Accessibility and comfort Good ergonomic practice is important to get the most from your personal computer and to avoid discomfort.Arrange your ...
Adjust the monitor so the top of the screen is at, or slightly below, eye level. Place the monitor at acomfortable viewing distance, usually 51 to 61 cm (20 to 24 inches), and position it so you can view itwithout having to twist your body. Also, position other equipment you use regularly, such as t...
Registering your computer When you register your computer, information is entered into a database, which enables Lenovo to contactyou in case of a recall or other severe problem. After you register your computer with Lenovo, you will receivequicker service when you call Lenovo for help. In addition,...
Replacement power cords If you relocate your computer to a country or region that uses an electrical outlet style different from thetype you are currently using, you will have to purchase either electrical plug adapters or new power cords.You can order power cords directly from Lenovo. For power cor...
Chapter 4. Security This chapter provides information about how to protect your computer from theft and unauthorized use. Security features The following security features are available on your computer: • Computrace Agent software embedded in firmware The Computrace Agent software is an IT asset ma...
Attaching an integrated cable lock An integrated cable lock, sometimes referred to as the Kensington lock, can be used to secure yourcomputer to a desk, table, or other non-permanent fixture. The cable lock attaches to the integrated cablelock slot at the rear of your computer and is operated with a...
Chapter 5. Installing or replacing hardware This chapter provides instructions on how to install or replace hardware for your computer. Handling static-sensitive devices Do not open the static-protective package containing the new part until the defective part has been removedfrom the computer and y...
Installing or removing the vertical stand Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”on page v. This section provides instructions on how to install or remove the vertical stand. Note: The vertical stand is only avail...
3. To remove the vertical stand, lift the computer to remove it from the vertical stand. Figure 8. Removing the computer from the vertical stand Installing or removing the VESA mount bracket Attention: Do not open your computer or attempt any repair before reading and understanding the “Important sa...
4. To remove the VESA mount bracket from the computer, remove the two screws that secure the VESA mount bracket to the computer. Figure 11. Removing the screws that secure the VESA mount bracket 5. Slide the computer from the front of the VESA mount bracket to remove the VESA mount bracket from the ...
6. Slide the computer cover to the front of the computer a small amount. Lift the computer cover to remove it from the computer. Figure 14. Removing the computer cover Installing or replacing a memory module Attention: Do not open your computer or attempt any repair before reading and understanding ...
• To complete the installation or replacement, go to “Completing the parts replacement” on page 75. Replacing the optical drive Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”on page v. This section provides instructions ...
4. Remove the screw that secures the optical drive in the optical drive box. Use the screwdriver to slide the optical drive forward and then remove the optical drive from the optical drive box. Figure 18. Removing the optical drive from the optical drive box 5. Remove the two screws that secure the ...
9. Align the screw holes in the optical drive box with the two screws on the VESA mount bracket and then slide the optical drive box to install it on the VESA mount bracket. Figure 23. Installing the optical drive box Chapter 5 . Installing or replacing hardware 41
10. Install the screw that secures the optical drive box on the VESA mount bracket. Figure 24. Installing the screw that secures the optical drive box 11. Connect the optical drive cable to a USB connector on the computer. See “Locating connectors on the rear of your computer” on page 10. What to do...
3. Remove the screw that secures the optical drive box on the VESA mount bracket and then slide the optical drive box to remove it from the VESA mount bracket. Figure 25. Removing the optical drive box 4. Slide the release button on the optical drive box and then remove the secondary hard disk drive...
5. Flex the sides of the hard disk drive adapter bracket and then pivot the hard disk drive adapter to remove the adapter from the adapter bracket. Figure 27. Removing the hard disk drive adapter from the adapter bracket 6. To remove the hard disk drive from the adapter, lift the adapter retaining l...
11. Install the screw that secures the optical drive box on the VESA mount bracket. Figure 33. Installing the screw that secures the optical drive box 12. Connect the secondary hard disk drive cable to a USB connector on the computer. See “Locating connectors on the rear of your computer” on page 10...
3. Locate the battery. See “Locating parts on the system board” on page 12. 4. Remove the old battery. Figure 34. Removing the old battery 5. Install a new battery. Figure 35. Installing a new battery 6. Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on p...
3. Connect the new ac power adapter to the ac power adapter connector at the rear of your computer and an workable electrical outlet. Secure the power cord into the power adapter cable loop at the rearof the computer as shown. Figure 37. Connecting the new ac power adapter What to do next: • To work...
2. Press the metal tab 1 and then slide the ac power adapter bracket to remove it from the VESA mount bracket. Figure 38. Removing the ac power adapter bracket 3. To install the ac power adapter bracket to the VESA mount bracket, align the two tabs on the ac power adapter bracket with the slots in t...
What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 75. Replacing the power switch board Attention: Do not open your computer or attempt any repair before reading and...
8. Remove the power switch board from the computer. Figure 41. Removing the power switch board 9. Align the hole 1 in the new power switch board with the corresponding tab 2 on the computer and position the new power switch board in the computer. Figure 42. Installing the power switch board 54 Think...
10. Install the screw to secure the new power switch board in the computer. Figure 43. Installing the screw that secures the power switch board 11. Connect the power switch board cable to the power switch board cable connector on the system board. See “Locating parts on the system board” on page 12....
What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 75. Replacing the microprocessor Attention: Do not open your computer or attempt any repair before reading and und...
5. Lift the microprocessor straight up and out of the microprocessor socket. Figure 49. Removing the microprocessor Notes: a. Your microprocessor and socket might look different from the one illustrated. b. Note the orientation of the microprocessor in the socket. You can either look for the small t...
9. Lower the new microprocessor straight down into the microprocessor socket on the system board. Figure 50. Installing the microprocessor 10. Close the microprocessor retainer and lock it into position with the small handle to secure the new microprocessor in the socket. 11. Reinstall the heat sink...
6. Slide the hard disk drive bracket toward the heat sink and then lift the hard disk drive bracket to remove it from the computer. Figure 52. Removing the hard disk drive bracket 62 ThinkCentre User Guide
7. To install the hard disk drive bracket into the computer, position the hard disk drive bracket on the system board so that the two holes in the hard disk drive bracket are aligned with the standoffs on thesystem board. Slide the hard disk drive bracket as shown until the two screw holes are align...
• To complete the installation or replacement, go to “Completing the parts replacement” on page 75. Replacing the WiFi card module Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”on page v. This section provides instructio...
What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Completing the parts replacement” on page 75. Installing or removing the rear WiFi antenna Attention: Do not open your computer or attempt any repair before...
Removing the rear WiFi antenna To remove the rear WiFi antenna, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Straighten the rear WiFi antenna so that it can be more easily twisted. 3. Hold the thicker end of the rear WiFi antenna and unscrew t...
1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Install the two rear WiFi antennas to the rear WiFi antenna cable connectors attached on the rear of the computer. 3. Adjust the angle of the rear antennas to lower the risk of breaking the antenna by accident. Figur...
3. Hold the thicker end of the rear WiFi antennas and unscrew the WiFi antennas from the rear of the computer. Figure 63. Removing the rear WiFi antennas What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the installation or replacement, go to “Co...
6. Remove the four screws that secure the system fan to the system board. Figure 64. Removing the screws that secure the system fan 7. Lift the failing system fan off the system board. Figure 65. Removing the system fan 70 ThinkCentre User Guide
8. Position the new system fan on the system board so that the four screws are aligned with the screw posts on the system board. Figure 66. Installing the system fan 9. Install the four screws that secure the system fan. Figure 67. Installing the screws that secure the system fan Chapter 5 . Install...
10. Connect the system fan cable to the system fan connector on the system board. See “Locating parts on the system board” on page 12. 11. Reinstall the heat sink. See “Replacing the heat sink” on page 55. What to do next: • To work with another piece of hardware, go to the appropriate section. • To...
7. Position the new internal speaker into the internal speaker holder and then pivot the internal speaker inward until it is secured in place. Figure 69. Installing a new internal speaker 8. Connect the internal speaker cable to the system board. See “Locating parts on the system board” on page 12. ...
2. Connect a new keyboard or mouse to one of the USB connectors on the computer. Depending on where you want to connect the new keyboard or mouse, see “Locating connectors, controls, and indicators onthe front of your computer” on page 9 or “Locating connectors on the rear of your computer” on page ...
3. Position the computer cover on the chassis and then push the cover to the rear of the computer until it snaps into position. Figure 71. Installing the computer cover 76 ThinkCentre User Guide
4. Install the screw to secure the computer cover. Figure 72. Installing the computer cover screw 5. If there is an integrated cable lock available, lock the computer. See “Attaching an integrated cable lock” on page 26. 6. Reconnect the external cables and power cords to the computer. See “Locating...
Chapter 6. Recovery information This chapter provides information about the recovery solutions provided by Lenovo. • “Recovery information for the Windows 7 operating system” on page 79 • “Recovery information for the Windows 8 operating system” on page 85 Recovery information for the Windows 7 oper...
Creating recovery media This section provides instructions on how to create recovery media. Note: On the Windows 7 operating system, you can create recovery media using discs or external USB storage devices. To create recovery media on the Windows 7 operating system, click Start ➙ All Programs ➙ Len...
1. From the Windows desktop, click Start ➙ All Programs ➙ Lenovo ThinkVantage Tools ➙ Enhanced Backup and Restore . The Rescue and Recovery program opens. 2. In the Rescue and Recovery main window, click the Launch advanced Rescue and Recovery arrow. 3. Click Back up your hard drive and select backu...
2. Turn on your computer. When you see the logo screen, press Enter, and then press F11 to enter the Rescue and Recovery workspace. 3. If you have set a Rescue and Recovery password, type your password when prompted. The Rescue and Recovery workspace opens after a short delay. Note: If the Rescue an...
2. Repeatedly press and release the F12 key when turning on the computer. When the Startup Device Menu window opens, release the F12 key. 3. In the Startup Device Menu window, select the USB hard disk drive as the first boot device and press Enter. The rescue medium starts. When the rescue medium st...
Reinstalling software programs If a software program you installed on your computer is not working correctly, you might need to removeand reinstall it. Reinstalling overwrites the existing programs files and usually fixes any problems thatyou might have had with that program. To remove a program in ...
Recovery information for the Windows 8 operating system This section provides information about the recovery solutions provided on computers preinstalled with theWindows 8 operating system. Refreshing your computer If your computer does not perform well and the problem might be caused by a recently ...
Chapter 7. Using the Setup Utility program The Setup Utility program is used to view and change the configuration settings of your computer, regardlessof which operating system you are using. However, the operating system settings might override any similarsettings in the Setup Utility program. Star...
1. Start the Setup Utility program. 2. From the Setup Utility program main menu, select Power ➙ Automatic Power On , and press Enter. 3. Select Wake Up on Alarm and press Enter. Then follow the instructions on the screen. 4. Press F10 to save changes and exit the Setup Utility program. Press Enter w...
Chapter 8. Updating system programs This chapter provides information about updating the POST and BIOS, and how to recover from a POSTand BIOS update failure. Using system programs System programs are the basic layer of software built into your computer. System programs include thePOST, the BIOS, an...
Chapter 9. Preventing problems This chapter provides information that can help you avoid common problems and keep your computerrunning smoothly. Keeping your computer current In some situations you may find it necessary to have the most current software programs, device drivers, oroperating system. ...
Cleaning your computer It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble-freeoperation. CAUTION:Be sure to turn off the computer and monitor power switches before cleaning the computer andmonitor screen. Computer Use only mild cleaning solutions and...
Many computer supply stores carry the special cleaning fluids for displays. Use cleaning fluids developed forLCD displays only. First apply the fluid to a lint-free, soft cloth, then clean the LCD display. Some computersupply stores carry pre-moistened towelettes for LCD maintenance. Cleaning a glas...
Chapter 10. Troubleshooting and diagnostics This chapter provides information about diagnosing and troubleshooting computer problems. If yourcomputer problem is not described here, see Chapter 11 “Getting information, help, and service” on page117 for additional troubleshooting resources. Basic trou...
Symptom Action The operating system does notstart. Verify that: • The startup sequence includes the device where the operating system resides. Usually, the operating system is on the hard disk drive. For more information,see “Selecting a startup device” on page 90. The computer beeps multipletimes b...
1. Remove the new hardware option or software. If you must remove the computer cover to remove a hardware option, make sure you review and follow the electrical safety information provided with yourcomputer. For your safety, do not operate the computer with the cover removed. 2. Run the diagnostic p...
Note: When external-speaker or headphone cables are attached to the audio connector, the internal speaker, if present, is disabled. In most cases, if an audio adapter is installed in one of the expansion slots,the audio function built into the system board is disabled; use the audio jacks on the ada...
An audio disc or AutoPlay-enabled disc does not automatically play when it isinserted into a CD drive Symptom: An audio disc or AutoPlay-enabled disc does not automatically play when it is inserted intoa CD drive. Actions: • If you have multiple CD or DVD drives installed (or a combination of CD and...
• On computers that have a CD-ROM or CD-RW drive in addition to a DVD-ROM drive, make sure that the DVD disc is in the drive labeled “DVD”. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technicalassistance, see Chapter 11 “Getting information, help,...
3. Click Devices and Printers . 4. Double-click USB Enhanced Performance Keyboard . The USB Enhanced Performance Keyboard Customization program starts. If these actions do not correct the problem, have the computer and keyboard serviced. See Chapter 11“Getting information, help, and service” on page...
Action: If the Transceiver Communications LED is not on, reconnect the transceiver and the keyboard. Monitor problems Note: Many monitors have status-indicator lights and built-in controls for adjusting brightness, contrast, width, height, and other picture adjustments. However, the controls vary fr...
Actions: • The monitor might be operating in a low-refresh rate display mode. Set the monitor to the highest, noninterlaced refresh rate supported by your monitor and the video controller in your computer. Attention: Using a resolution or refresh rate that is not supported by your monitor might dama...
Ethernet problems For Ethernet problems, select your symptom from the following list: • “Your computer cannot connect to the network” on page 109 • “The adapter stops working for no apparent reason” on page 109 • “If your computer is a Gigabit Ethernet model and you use a speed of 1000 Mbps, the con...
Action: The network driver files may be corrupt or missing. Update the driver by referring to the “Solution”description for the procedure to make sure that the correct device driver is installed. The Wake on LAN feature is not working Symptom: The Wake on LAN (WOL) feature is not working. Actions: •...
Bluetooth problem Symptom: Sound does not come from the Bluetooth headset or headphone but comes from the localspeaker even though the headset or headphone is connected using the Headset profile or AV profile. Action: Do the following: 1. Exit the application that uses the sound device (for example,...
– All external SCSI options are turned on. External SCSI options must be turned on before the computer is turned on. For more information, see your SCSI documentation. • Verify that the option and any required device drivers are installed correctly. If these actions do not correct the problem, run t...
4. Click Clean up system files . 5. Click the More Options tab. 6. In the Programs and Features area, click the Clean up button. 7. A list of installed programs is displayed. Select the program that you want to remove. Click Uninstall/Change . • Clean out your Inbox, Sent Items, and Deleted Items fo...
Actions: Verify that: 1. The printer is turned on and is online. 2. Paper is loaded correctly. 3. The printer signal cable is securely connected to the correct parallel, serial, or USB connector on the computer. Note: Non-IEEE-approved printer signal cables might cause unpredictable problems. 1. Any...
Actions: • Most software programs have built-in help systems that provide instructions for most tasks. If you are having difficulty performing a specific task within a software program, refer to the help system for thatprogram. Help systems are typically accessible from a menu or button in the progr...
Lenovo Solution Center The Lenovo Solution Center program enables you to troubleshoot and resolve computer problems. Itcombines diagnostic tests, system information collection, security status, and support information, alongwith hints and tips for maximum system performance. Notes: • The Lenovo Solu...
• Access troubleshooting and support information for your computer model and other supported products. • Find the service and support phone numbers for your country or region. • Find a Service Provider located near you. Lenovo Support Web site Technical support information is available on the Lenovo...
• Replacement or use of parts not manufactured for or by Lenovo or non-warranted Lenovo parts• Identification of software problem sources• Configuration of BIOS as part of an installation or upgrade• Changes, modifications, or upgrades to device drivers• Installation and maintenance of network opera...
Trademarks The following terms are trademarks of Lenovo in the United States, other countries, or both: LenovoThe Lenovo logoRescue and RecoveryThinkCentreThinkVantage Microsoft, Windows, and Windows Media are trademarks of the Microsoft group of companies. Intel, Intel Core, Celeron, and Pentium ar...
Appendix B. Regulatory information Export classification notice This product is subject to the United States Export Administration Regulations (EAR) and has an ExportClassification Control Number (ECCN) of 4A994.b. It can be re-exported except to any of the embargoedcountries in the EAR E1 country l...
Japanese VCCI Class B statement Japan compliance statement for products which connect to the power mains with rated currentless than or equal to 20 A per phase Lenovo product service information for Taiwan Keyboard and mouse compliance statement for Taiwan Additional regulatory information For addit...
Appendix C. WEEE and recycling information Important WEEE information The WEEE marking on Lenovo products applies to countries with WEEE and e-waste regulations (for example,European Directive 2002/96/EC, India E-Waste Management & Handling Rules, 2011). Appliances arelabeled in accordance with ...
Collecting and recycling a disused Lenovo computer or monitor If you are a company employee and need to dispose of a Lenovo computer or monitor that is the propertyof the company, you must do so in accordance with the Law for Promotion of Effective Utilization ofResources. Computers and monitors are...
Battery recycling information for the European Union Notice: This mark applies only to countries within the European Union (EU). Batteries or packaging for batteries are labeled in accordance with European Directive 2006/66/ECconcerning batteries and accumulators and waste batteries and accumulators...
India RoHS RoHS compliant as per E-Waste (Management & Handling) Rules, 2011. 132 ThinkCentre User Guide
Appendix E. ENERGY STAR model information ENERGY STAR ® is a joint program of the U.S. Environmental Protection Agency and the U.S. Department of Energy aimed at saving money and protecting the environment through energy efficient products andpractices. Lenovo is proud to offer our customers product...
Index A a rescue medium, creating and using 82 ac power adapter bracket, replacing 51 ac power adapter, replacing 49 Administrator, password 88 audio subsystem 1 B backup and recovery operations 80 basic troubleshooting 99 battery, replacing 48 boot-block recovery 94 C cable lock, security 26 changi...
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