Lenovo THINKCENTRE 2491- User Manual

Lenovo THINKCENTRE 2491

Lenovo THINKCENTRE 2491– User Manual, read for free online in PDF format. We hope this helps you resolve any issues you may have. If you have further questions, please contact us through the contact form.

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Table of Contents:

  • Page 4 – Note
  • Page 5 – Contents; iii
  • Page 6 – iv
  • Page 7 – Chapter 1. About this manual; information in this manual.; Important safety information
  • Page 8 – distribution center at the time of order.
  • Page 9 – Chapter 2. Safety information; General safety; that you think are too heavy for you.; Electrical safety
  • Page 11 – Consider these conditions and the safety hazards they present:
  • Page 13 – To Connect; • Throw or immerse into water
  • Page 16 – PERIGO
  • Page 18 – pode resultar em exposição prejudicial à radiação.; Utilize procedimentos de segurança para levantar equipamentos.
  • Page 22 – DANGER; Pour éviter tout risque de choc électrique :
  • Page 23 – l'exposer à des températures supérieures à 100°C,
  • Page 25 – • mit Wasser in Berührung bringen.; VORSICHT
  • Page 26 – Arbeitsschutzrichtlinien beim Anheben der Maschine beachten.
  • Page 29 – Gettare o immergere la batteria nell'acqua
  • Page 33 – Arrojarla al agua o sumergirla en ella
  • Page 34 – Adopte procedimientos seguros al levantar el equipo.
  • Page 35 – Chapter 3. General information; Lenovo Welcome; Start; Program name; Lenovo ThinkVantage Toolbox
  • Page 36 – Additional information resources
  • Page 37 – Specifications; Dimensions
  • Page 39 – Chapter 4. General checkout; Attention; did not; Checking for power problems
  • Page 40 – Problem determination tips
  • Page 43 – Chapter 5. Diagnostics; See “PC-Doctor for DOS” on page 37 for detailed information.; . Follow the instructions; Creating a diagnostic disc; To create a diagnostic disc, do the following:
  • Page 44 – Run Normal Test
  • Page 45 – UTILITY
  • Page 46 – Viewing the test log
  • Page 47 – Chapter 6. Using the Setup Utility program; Starting the Setup Utility program; Save Changes and Exit; Viewing and changing settings
  • Page 48 – Security
  • Page 49 – USB Setup; External SATA Port; Disable; Devices
  • Page 51 – Exiting from the Setup Utility program; • If you do not want to save the settings, select; Exit
  • Page 53 – Hard disk drive boot error; Error; Diagnostic error codes; In the following index,
  • Page 55 – Diagnostic Error Code
  • Page 69 – Beep symptoms; Beep Symptom; POST error codes
  • Page 71 – Miscellaneous error messages
  • Page 72 – Undetermined problems; If you encounter undetermined problems, do the following:
  • Page 73 – f. External Cache RAM
  • Page 75 – Chapter 8. Replacing FRUs; Important; Locations
  • Page 76 – Locating connectors on the rear of your computer
  • Page 77 – Locating components; Locating parts on the system board
  • Page 78 – Opening the computer cover
  • Page 79 – Removing and reinstalling the front bezel
  • Page 80 – Go to “Completing the parts replacement” on page 98.; Installing or replacing a memory module; To install or replace a memory module, do the following:
  • Page 81 – Installing or replacing the PCI card
  • Page 83 – Replacing the hard disk drive; To replace the hard disk drive, do the following:
  • Page 84 – Replacing the optical drive
  • Page 85 – Install the optical drive retainer; Go to “Completing the parts replacement” on page 98.
  • Page 86 – Replacing the battery; ThinkCentre Safety and Warranty Guide
  • Page 87 – Replacing the heat sink; To replace the heat sink, do the following:
  • Page 88 – Replacing the microprocessor
  • Page 91 – microprocessor in the socket.
  • Page 92 – Go to “Completing the parts replacement” on page 98.; Replacing the system board; To replace the system board, do the following:
  • Page 94 – microprocessor socket.; Replacing the system fan assembly
  • Page 95 – Place the system board on a clean and flat surface.
  • Page 96 – Pull and lift the system fan assembly out of the chassis.
  • Page 97 – Go to “Completing the parts replacement” on page 98.; Replacing the internal speaker; To replace the internal speaker, do the following:
  • Page 98 – Replacing the front audio and USB assembly
  • Page 100 – Replacing the ac power adapter
  • Page 101 – Replacing the ac power adapter bracket
  • Page 102 – Press the metal clip; Slide the ac power adapter out of the bracket.
  • Page 104 – Completing the parts replacement; If there is an integrated cable lock available, lock the computer.
  • Page 105 – CRU; means that the part is an Optional-service CRU.
  • Page 114 – Mechanical FRUs
  • Page 119 – Keyboard and Mouse; Keyboard - Preferred Pro USB Keyboard
  • Page 153 – Adapters and miscellaneous FRUs
  • Page 155 – Power Cords
  • Page 162 – Recovery discs; Windows 7 Professional 32
  • Page 168 – Windows 7 Home Basic 32 Recovery CD; Windows 7 Home Basic 32
  • Page 169 – Windows 7 Home Premium 64 Recovery CD; Windows 7 Home Premium 64
  • Page 170 – Windows 7 Home Premium 32 Recovery CD; Windows 7 Home Premium 32
  • Page 173 – Windows XP Professional 32 Recovery CD; Windows XP Professional 32
  • Page 176 – Windows 7 Professional 64 Recovery CD; Windows 7 Professional 64
  • Page 181 – Windows XP Professional Generic Recovery CD; Windows XP Professional Generic
  • Page 182 – Windows Vista Business 32 Recovery CD; Windows Vista Business 32
  • Page 183 – Windows Vista Home Basic 32 Recovery CD; Windows Vista Home Basic 32
  • Page 185 – Chapter 10. Additional service information; BIOS Revision Level
  • Page 186 – Updating (flashing) the BIOS from your operating system; the screen after the download begins.
  • Page 187 – RTC resume
  • Page 191 – Index
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ThinkCentre
Hardware Maintenance Manual

Machine Types: 0266, 0384, 2491, 4168, 5027, 5067, 7516, and 7519

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Summary

Page 4 - Note

Note Before using this information and the product it supports, be sure to read and understand the Chapter 2“Safety information” on page 3 and Appendix A “Notices” on page 183. Fourth Edition (August 2011) © Copyright Lenovo 2011. LIMITED AND RESTRICTED RIGHTS NOTICE: If data or software are deliver...

Page 5 - Contents; iii

Contents Chapter 1. About this manual . . . . . . 1 Important safety information . . . . . . . . . . 1 Important information about replacing RoHScompliant FRUs . . . . . . . . . . . . . . . 1 Chapter 2. Safety information . . . . . . 3 General safety . . . . . . . . . . . . . . . . 3 Electrical safe...

Page 6 - iv

Adapters and miscellaneous FRUs . . . . . . . 147 Power Cords . . . . . . . . . . . . . . . 149 Recovery discs . . . . . . . . . . . . . . 156 Windows 7 Professional 32 Recovery CD . . 156 Windows 7 Home Basic 32 Recovery CD . . 162 Windows 7 Home Premium 64 RecoveryCD . . . . . . . . . . . . . . . ...

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