Lenovo E93- Manuals

Chapter 1. About this manual This manual provides service and reference information for ThinkCentre ® E computers listed on the front cover. This manual is intended only for trained service personnel who are familiar with Lenovo ® computer products. Before servicing a Lenovo computer product, be sur...

Chapter 2. Safety information This chapter contains the safety information that you need to be familiar with before servicing a computer. General safety Follow these rules to ensure general safety: • Observe good housekeeping in the area of the machines during and after maintenance. • When lifting a...

When handling ESD-sensitive parts: • Keep the parts in protective packages until they are inserted into the product. • Avoid contact with other people while handling the part. • Wear a grounded wrist strap against your skin to eliminate static on your body. • Prevent the part from touching your clot...

• Do not connect or disconnect any cables or perform installation, maintenance, or reconfigurationof this product during an electrical storm. • Connect all power cords to a properly wired and grounded electrical outlet. • Connect to properly wired outlets any equipment that will be attached to this ...

≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) 1 2 PERIGO A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. 10 ThinkCentre E93 Hardware Maintenance Manual

• A utilização de controles ou ajustes ou a execução de procedimentos diferentes dos especificados aqui pode resultar em exposição prejudicial à radiação. PERIGO Alguns produtos a laser contêm diodo de laser integrado da Classe 3A ou da Classe 3B. Observe o seguinte: Radiação a laser quando aberto. ...

DANGER Le courant électrique provenant de l'alimentation, du téléphone et des câbles de transmission peut présenterun danger. Pour éviter tout risque de choc électrique : • Ne manipulez aucun câble et n'effectuez aucune opération d'installation, d'entretien ou de reconfiguration de ce produit au cou...

1 2 VORSICHT An Netz-, Telefon- und Datenleitungen können gefährliche Spannungen anliegen. Aus Sicherheitsgründen: • Bei Gewitter an diesem Gerät keine Kabel anschließen oder lösen. Ferner keine Installations-,Wartungs- oder Rekonfigurationsarbeiten durchführen. • Gerät nur an eine Schutzkontaktstec...

• über 100 C erhitzen. • reparieren oder zerlegen. Die örtlichen Bestimmungen für die Entsorgung von Sondermüll beachten. ACHTUNG: Bei der Installation von Lasergeräten (wie CD-ROM-Laufwerken, DVD- aufwerken, Einheiten mitLichtwellenleitertechnik oder Sendern) Folgendes beachten: • Die Abdeckungen n...

PERICOLO La corrente elettrica proveniente dai cavi di alimentazione, del telefono e di comunicazione può esserepericolosa. Per evitare il rischio di scosse elettriche: • Non collegare o scollegare qualsiasi cavo oppure effettuare l'installazione, la manutenzione o lariconfigurazione del prodotto du...

• No encienda nunca un equipo cuando hay señales de fuego, agua o daños estructurales. • Desconecte los cables de alimentación, los sistemas de telecomunicaciones, las redes y losmódems conectados antes de abrir las cubiertas de los dispositivos, a menos que se indique locontrario en los procedimien...

Algunos productos láser tienen incorporado un diodo láser de clase 3A o clase 3B. Tenga en cuenta losiguiente: Cuando se abre, queda expuesto a radiación láser. No mire directamente al rayo láser, ni siquiera coninstrumentos ópticos, y evite exponerse directamente al rayo láser. ≥18 kg ≥32 kg ≥55 kg...

Chapter 3. General information This chapter provides general information that applies to all machine types supported by this publication. Specifications This section lists the physical specifications for your computer. For machine type: 10AR Dimensions Width: 160 mm (6.30 inches) Height: 396.5 mm (1...

For machine type: 10AQ Dimensions Width: 100.7 mm (3.96 inches) Height: 335.5 mm (13.20 inches) Depth: 382 mm (15.04 inches) Weight Maximum configuration as shipped: 6.7 kg (14.8 lb) Environment • Air temperature: Operating: 10°C to 35°C (50°F to 95°F) Storage: -40°C to 60°C (-40°F to 140°F) in orig...

1. Click the Start button and then type the program name or the icon name into the search box. 2. Locate the program by the program name or the icon name and then click the program to launch it. To access Lenovo programs from Control Panel, do the following: Note: Some Lenovo programs might not be d...

• Fingerprint Manager Pro or ThinkVantage Fingerprint Software • Lenovo Bluetooth Lock (Windows 8.1 only) • Lenovo Companion • Lenovo Reach • Lenovo SHAREit • Lenovo Solution Center • Lenovo Support • Lenovo Tools • Password Manager • PC Cloud Manager (Windows 8.1 only) • Power Manager • System Upda...

Chapter 4. General checkout Attention The drives in the computer you are servicing might have been rearranged or the drive startup sequencechanged. Be extremely careful during write operations such as copying, saving, or formatting. Data orprograms can be overwritten if you select an incorrect drive...

Chapter 5. Troubleshooting and diagnostics This chapter provides information about diagnosing and troubleshooting computer problems. If yourcomputer problem is not described here, see “Lenovo Support Web site” on page 32 for additionaltroubleshooting resources. Basic troubleshooting The following ta...

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 58. The computer beeps multipletimes b...

• For Windows 8 or Windows 8.1: Open Control Panel, and then click System and Security ➙ System ➙ System Protection ➙ System Restore . If this does not correct the problem, continue with the next step. 6. Run the diagnostic program. See “Lenovo Solution Center” on page 53 for more information. • If ...

If these actions do not correct the problem, you might have a failing speaker. Have the speaker serviced. Ifyou need technical assistance, see “Lenovo Support Web site” on page 32. No audio in DOS applications or games Symptom: No audio in DOS applications or games Actions: • Ensure that the DOS app...

Unable to use a startable (bootable) recovery medium, such as the Product RecoveryCD, to start your computer Symptom: Unable to use a startable (bootable) recovery medium, such as the Product Recovery CD,to start your computer. Action: Ensure that the CD or DVD drive is in the startup sequence befor...

• Ensure that the disc surface is clean and not scratched. • Check all cable connections to and from the speakers. • Use the DVD menu for the video to select a different audio track. If these actions do not correct the problem, run the Lenovo Solution Center program. If you need technicalassistance,...

Some or all hard disk drives missing from the Setup Utility program Symptom: Some or all hard disk drives missing from the Setup Utility program Actions: • Ensure that all hard disk drive signal cables and power cables are connected correctly. • Ensure that your computer is configured correctly to s...

To open the Enhanced Performance Customization Keyboard program, do one of the following: – On the Windows 7 operating system, do the following: 1. Click Start ➙ Control Panel . 2. Click Hardware and Sound . 3. Click Devices and Printers . 4. Double-click USB Enhanced Performance Keyboard . The USB ...

5. Reconnect the mouse cable to the computer. 6. Turn your computer back on. The pointer on the screen does not move smoothly with the mouse Symptom: The pointer on the screen does not move smoothly with the mouse. Action: Erratic movement of the mouse pointer is generally caused by a buildup of dir...

Wrong characters appear on the screen Symptom: Wrong characters appear on the screen. Action: Have the computer serviced. For details, see “Lenovo Support Web site” on page 32. The monitor works when you turn on the computer, but goes blank after some periodof computer inactivity Symptom: The monito...

On the Windows 8 or Windows 8.1 operating system, open Control Panel and click Hardware and Sound ➙ Adjust screen resolution ➙ Advanced Settings . Then click the Monitor tab and select a new refresh rate. • See your operating system documentation or help for further information on monitor settings. ...

If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps. Instead,it connects at 100 Mbps Symptom: If your computer is a Gigabit Ethernet model, it cannot connect to the network at 1000 Mbps.Instead, it connects at 100 Mbps. Actions: • Try another cable. • Ensure t...

Action: Verify that: • The option is designed for your computer. • You followed the installation instructions supplied with the option and the installation instructions provided with your computer, and all option files (such as device drivers, if required) are installed correctly. • You have not loo...

To check the amount of free space on the Windows 8.1 operating system, do the following: 1. Open File Explorer. 2. Right-click your C drive entry and then click Properties . The amount of free disk space is displayed. To free up disk space, do any of the following: • Method 1 1. On the Windows 7 ope...

6. Click Defragment Now again to start a disk-defragmentation process. On the Windows 8 or Windows 8.1 operating system, do the following: 1. Close any programs that are currently running and close any open windows. 2. On Windows 8, open File Explorer and click Computer . On Windows 8.1, open File E...

• If the serial device has an Online switch, ensure that it is in the Online position. • If the serial device is a printer, ensure that paper is loaded correctly. • Verify that any software supplied with the serial device is correctly installed. Refer to the documentation for the serial-device optio...

– On the Windows 8 or Windows 8.1 operating system, open Control Panel and click System and Security ➙ System ➙ System Protection ➙ System Restore . Then, follow the instructions on the screen. • If you are unable to resolve the problem through other methods, uninstall the software program and reins...

To run the Lenovo Solution Center program, see “Lenovo programs” on page 30. For additional information, refer to the Lenovo Solution Center help system. Note: If you are unable to isolate and repair the problem yourself after running the program, save and print the log files. You will need the log ...

Chapter 6. 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...

2. From the Setup Utility program main menu, select Security . 3. Depending on the password type, select Set Power-On Password , Set Administrator Password , or Hard Disk Password . 4. Follow the instructions on the right side of the screen to set, change, or delete a password. Note: A password can ...

After enabling the ICE thermal alert function, when critical thermal situations occur, such as malfunctioningfans, abnormally high temperature, and poor cooling performances, an alert log will be written into theWindows system log. The alert log can help you identify the thermal problems. To configu...

Chapter 7. Symptom-to-FRU Index The Symptom-to-FRU index lists error symptoms and possible causes. The most likely cause is listed first.Always begin with the Chapter 4 “General checkout” on page 33. You can use this index to help you decidewhich FRUs are needed when servicing a computer. If you are...

The following tables describes beep symptoms. Beep Symptom FRU/Action 2 short beeps CMOS setting error Perform the following actions in order. 1. Start the Setup Utility program and press F10 to Save and exit. See Chapter 6 “Using the Setup Utilityprogram” on page 55. 2. Start the Setup Utility prog...

Miscellaneous error conditions Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not power-off. See “Hard disk drive boot error” on page 61. 1. Power Switch 2. System Board 3. Riser card, if installed Computer will not RPL from server 1. Ensure that network is in start...

Message/Symptom FRU/Action Non-system disk or disk error-type message with aknown-good diagnostic diskette. 1. Diskette Drive 2. System Board 3. Diskette Drive Cable Other display symptoms not listed above (including blankor illegible display) 1. Display 2. System Board Power-on indicator or hard di...

Chapter 8. Locations This chapter introduces the locations of the computer hardware components. For machine type: 10AR Locating connectors, controls, and indicators on the front of yourcomputer Figure 1 “Front connector, control, and indicator locations” on page 67 shows the locations of theconnecto...

Locating connectors on the rear of your computer Figure 2 “Rear connector locations” on page 68 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. ® 8 7 6 5...

Connector Description Audio line-in connector Used to receive audio signals from an external audio device, such as a stereosystem. When you attach an external audio device, a cable is connected betweenthe audio line-out connector of the device and the audio line-in connector of thecomputer. Audio li...

Notes: • Self-service CRUs: These CRUs unplug or are secured by no more than two screws. Examples of these types of CRUs include the keyboard, the mouse, any USB device, and the power cord. Otherself-service CRUs depending on product design might include memory modules, adapter cards, harddisk drive...

Locating internal drives Internal drives are devices that your computer uses to read and store data. You can add drives to yourcomputer to increase storage capacity and enable your computer to read other types of media. Internaldrives are installed in bays. In this manual, the bays are referred to a...

Chapter 9. Replacing FRUs (machine type: 10AR) Important Before you replace any FRU, read Chapter 2 “Safety information” on page 3. These precautions andguidelines will help you work safely. FRU replacements are to be done by trained service technicians only. This chapter provides instructions about...

required connector. Then, use the instructions that come with the option to help you make the connectionand install any software or device drivers that are required for the option. Removing the computer cover Attention: Do not open your computer or attempt any repair before reading and understanding...

Removing and reinstalling the front bezel Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 2 “Safety information” on page 3. This section provides instructions on how to remove and reinstall the front bezel. To remove and reinstall the front bez...

4. To reinstall the front bezel, align the three plastic tabs on the right side of the front bezel with the corresponding holes in the chassis, then pivot the front bezel inwards until it snaps into position onthe left side. Figure 13. Reinstalling the front bezel What to do next: • To work with ano...

6. Slide the new hard disk drive into the hard disk drive bay and align the screw holes in the new hard disk drive with the corresponding holes in the drive bay. Then, install the four screws to secure thenew hard disk drive in place. Figure 15. Installing the hard disk drive 7. Connect one end of t...

1. Remove the four screws that secure the solid-state drive to the storage converter. Then, remove the drive from the converter as shown. Figure 16. Removing the solid-state drive from the storage converter 2. Take the new solid-state drive out of the static-protective package. 3. Position the solid...

Replacing the optical drive Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 2 “Safety information” on page 3. This section provides instructions on how to replace the optical drive. Note: The optical drive is only available in some models. To r...

6. Slide the new optical drive into the drive bay from the front and align the screw holes in the new optical drive with the corresponding holes in the drive bay. Then, install the three screws to secure the newoptical drive in place. Figure 19. Installing the optical drive 7. Connect one end of the...

5. Remove the screw that secures the slim card reader bracket and then remove the bracket from the chassis. Figure 20. Removing the slim card reader bracket 6. Remove the two screws that secure the card reader to the bracket. Then, slide the card reader as shown to remove it from the bracket. Note: ...

Figure 22. Installing the new slim card reader into the bracket 9. Route the cable of the new card reader through the corresponding hole for the card reader bracket in the front of the chassis. 10. Install the bracket into the chassis so that the hole in the bracket is aligned with the corresponding...

Replacing the front audio and USB assembly Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 2 “Safety information” on page 3. This section provides instructions on how to replace the front audio and USB assembly. To replace the front audio and U...

• To complete the installation or replacement, go to “Completing the parts replacement” on page 119. Replacing the power supply assembly Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 2 “Safety information” on page 3. This section provides ins...

4. Lay the computer on its side and remove the four screws at the rear of the chassis that secure the power supply assembly. Figure 25. Removing the screws for the power supply assembly 5. Slide the power supply assembly to the front of the computer and pivot it downwards to disengage it from the ch...

10. Secure the power supply assembly cables with the cable clips and ties in the chassis. 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 119. Replacing the syste...

7. Pull on the tips of the rubber mounts until the new system fan is secured in place. Figure 28. Installing the system fan 8. Connect the new system fan cable to the system fan connector on the system board. See “Locating parts on the system board” on page 71. What to do next: • To work with anothe...

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 119. Replacing the microprocessor Attention: Do not open your computer or attempt any repair before reading and un...

7. Lift the microprocessor straight up and out of the microprocessor socket. Figure 31. 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...

11. Lower the new microprocessor straight down into the microprocessor socket on the system board. Figure 32. Installing the microprocessor 12. Close the microprocessor retainer and lock it into position with the small handle to secure the new microprocessor in the socket. 13. Reinstall the heat sin...

• If you are replacing an old PCI card, grasp the old card that is currently installed, and gently pull it out of the slot. Figure 34. Removing a PCI card Notes: a. The card fits tightly into the card slot. If necessary, alternate moving each side of the card a small amount until it is removed from ...

7. Pivot the card latch to the closed position to secure the PCI card. Figure 35. Installing a PCI card Chapter 9 . Replacing FRUs (machine type: 10AR) 103

8. Reinstall the screw to secure the PCI card latch in place. Figure 36. Reinstalling the screw that secures the PCI card latch 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 replace...

3. Locate the battery. See “Locating parts on the system board” on page 71. 4. Remove any parts that might prevent your access to the battery. Depending on your computer model, you might need to remove the PCI Express x16 graphics card for easier access to the battery. See“Installing or replacing a ...

The following table provides information about the memory module installation rules that you shouldconsider when installing or removing a memory module. The “X” mark indicates the memory slot(s) intowhich the memory module(s) should be installed in different situations. The numbers 1, 2, 3, and 4 in...

• If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module. Figure 40. Opening the retaining clips 7. Position the new memory module over the memory slot. Make sure that the notch 1 on the memory module aligns correctly with ...

5. Carefully press the other side of the socket cover downwards until the socket cover snaps into place. Figure 44. Securing the socket cover 6. Carefully check the four corners of the socket cover to make sure that the cover is secured in the microprocessor socket. 7. Close the microprocessor retai...

Figure 45. Disconnecting the Bluetooth cable Note: The Bluetooth cable connects the Bluetooth connector on the Wi-Fi adapter card to the front USB connector on the system board to support the Bluetooth function. 4. At the rear of the computer, remove the screw that secures the PCI card latch. 5. Gra...

Note: The card fits tightly into the card slot. If necessary, alternate moving each side of the card a small amount until it is removed from the card slot. Removing the Wi-Fi card module To remove the Wi-Fi card module, do the following: 1. Remove the Wi-Fi adapter card from the computer, and then d...

Figure 49. Removing the Wi-Fi card module Installing the Wi-Fi units To install the Wi-Fi units, do the following: 1. Insert the Wi-Fi card module into the mini PCI Express slot, and then install the two screws to secure the Wi-Fi card module to the Wi-Fi adapter card. Chapter 9 . Replacing FRUs (ma...

Figure 50. Installing the Wi-Fi card module 2. Connect the front antenna cable and rear antenna cable to the Wi-Fi card module. Figure 51. Installing the Wi-Fi antenna cables 3. Install the Wi-Fi adapter card into the PCI Express x1 slot on the system board. See “Locating parts on the system board” ...

Figure 52. Installing the Wi-Fi adapter card 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 119. Installing or removing the rear Wi-Fi antenna Attention: Do not ...

Figure 53. Installing the rear Wi-Fi antenna 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 119. Removing the rear Wi-Fi antenna To remove the rear Wi-Fi antenna...

Figure 54. Removing the rear Wi-Fi antenna 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 119. Installing or removing the front Wi-Fi antenna Attention: Do not o...

Figure 55. Peeling off the paper that protects the stickers 5. Stick the front antenna to the front panel as shown. Then insert the front antenna cable through the hole in the front panel. Figure 56. Installing the front Wi-Fi antenna 6. Connect the front antenna cable to the Wi-Fi card module. What...

• To complete the installation or replacement, go to “Completing the parts replacement” on page 119. Removing the front Wi-Fi antenna To remove the front Wi-Fi antenna, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all powe...

2. Make sure that the cables are routed correctly before reinstalling the computer cover. Keep cables clear of the hinges and sides of the computer chassis to avoid interference with reinstalling the computercover. 3. If you have removed the front bezel, reinstall it. 4. Position the computer cover ...

To remove and reinstall the front bezel, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Remove the computer cover. See ...

Accessing the system board components and drives Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 2 “Safety information” on page 3. This section provides instructions on how to access the system board components and drives. To access the system ...

This section provides instructions on how to replace the hard disk drive. To replace the hard disk drive, do the following: 1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that ...

Figure 68. Removing the hard disk drive 6. Disconnect the signal cable and the power cable from the hard disk drive to completely remove the hard disk drive from the chassis. 7. Connect one end of the signal cable to the rear of the new hard disk drive and the other end to an available SATA connecto...

Figure 69. Installing the hard disk drive 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 165. Replacing the solid-state drive Attention: Do not open your compute...

1. Remove all media from the drives and turn off all attached devices and the computer. Then, disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer. 2. Remove the computer cover. See “Removing the computer cover” on page 122. 3. Remove the fr...

9. Slide the new solid-state drive into the solid-state drive bracket as shown until the four holes in the drive are aligned with the corresponding holes in the bracket. Then, install the four screws to secure thenew solid-state drive to the bracket. Figure 74. Installing the solid-state drive into ...

Figure 78. Installing the system fan 10. Connect the new system fan cable to the system fan connector on the system board. See “Locating parts on the system board” on page 78. 11. Reinstall the heat sink fan duct. See “Replacing the heat sink and fan assembly” on page 125. 12. Reinstall the hard dis...

5. Disconnect the signal cable and the power cable from the optical drive. 6. Hold the optical drive and remove the two screws that secure the optical drive. Figure 79. Removing the screws that secure the optical drive 7. Press the drive bay assembly clip 1 inward and pivot the drive bay assembly do...

Figure 86. Installing the new slim card reader into the bracket 9. Route the cable of the new card reader through the corresponding hole for the card reader bracket in the front of the chassis. 10. Install the bracket into the chassis so that the hole in the bracket is aligned with the corresponding...

Figure 89. Removing the heat sink fan duct 5. Disconnect the power supply assembly cables from all drives and from the 14-pin power connector and 4-pin power connector on the system board. See “Locating parts on the system board” on page 78. Note: You might also need to release the power supply asse...

c. Touch only the edges of the microprocessor. Do not touch the gold contacts on the bottom. d. Do not drop anything onto the microprocessor socket while it is exposed. The socket pins must be kept as clean as possible. 8. Make sure that the small handle is in the raised position and the microproces...

Figure 100. Removing a memory module • If you are installing a memory module, open the retaining clips of the memory slot into which you want to install the memory module. Figure 101. Opening the retaining clips 7. Position the new memory module over the memory slot. Make sure that the notch 1 on th...

Figure 103. Removing the eight screws that secure the system board 9. Lift the system board out of the chassis. 10. Remove the microprocessor from the failing system board and install it on the new system board. See “Replacing the microprocessor” on page 146. 11. Install the new system board into th...

Figure 119. Reinstalling the computer cover 6. If there is a padlock available, lock the computer cover. 7. If there is a Kensington-style cable lock available, lock the computer. 8. Reconnect the external cables and power cords to the computer. See “Locating connectors on the rear of your computer”...

Chapter 11. Additional service information This chapter provides additional information that the service representative might find helpful. Security features Security features in this section include the following: • Passwords • Vital Product Data • Management Information Format (MIF) Hardware contr...

Power management Power management reduces the power consumption of certain components of the computer such as thesystem power supply, processor, hard disk drives, and some monitors. Advanced configuration and power interface (ACPI) BIOS Being an ACPI BIOS system, the operating system is allowed to c...

Index A accessing system board components 124 administrator, password 56 audio line-in connector 69, 76 audio line-out connector 69, 76 B basic troubleshooting 35 battery, replacing 104, 150 BIOS settings, changing 60 boot-block recovery 169 C changing password 56 startup device sequence 58 cleaning...