Lenovo THINKCENTRE 2491- Manuals

Chapter 1. About this manual This manual contains service and reference information for ThinkCentre® computer machine types listedon the front cover. This manual is intended only for trained servicers who are familiar with Lenovo®computer products. Note: Be sure to read and understand the Chapter 2 ...

Note: RoHS and non-RoHS FRU part numbers with the same fit and function are identified with unique FRU part numbers. Lenovo plans to transition to RoHS compliance well before the implementation date and expects its suppliersto be ready to support Lenovo's requirements and schedule in the EU. Product...

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...

Voltage-selection switch Some computers are equipped with a voltage-selection switch located near the power-cord connectionpoint on the computer. If your computer has a voltage-selection switch, ensure that you set the switch tomatch the voltage available at your electrical outlet. Setting the volta...

• French • German • Hebrew • Italian • Korean • Spanish DANGER Electrical current from power, telephone and communication cables is hazardous. To avoid a shock hazard: • Do not connect or disconnect any cables or perform installation, maintenance, or reconfigurationof this product during an electric...

≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) 1 2 PERIGO 10 ThinkCentre Hardware Maintenance Manual

• Não remova as tampas. A remoção das tampas de um produto a laser pode resultar em exposição prejudicial à radiação de laser. Não existem peças que podem ser consertadas no interior do dispositivo. • A utilização de controles ou ajustes ou a execução de procedimentos diferentes dos especificados aq...

1 2 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...

Connexion Déconnexion 1. Mettez les unités HORS TENSION. 2. Commencez par brancher tous les cordons sur les unités. 3. Branchez les câbles d'interface sur des connecteurs. 4. Branchez les cordons d'alimentation sur des prises. 5. Mettez les unités SOUS TENSION. 1. Mettez les unités HORS TENSION. 2. ...

• Die Verbindung zu den angeschlossenen Netzkabeln, Telekommunikationssystemen, Netzwerkenund Modems ist vor dem Öffnen des Gehäuses zu unterbrechen, sofern in den Installations- undKonfigurationsprozeduren keine anders lautenden Anweisungen enthalten sind. • Zum Installieren, Transportieren und Öff...

Laserstrahlung bei geöffneter Verkleidung. Nicht in den Strahl blicken. Keine Lupen oder Spiegelverwenden. Strahlungsbereich meiden. ≥18 kg (37 lbs) ≥32 kg (70.5 lbs) ≥55 kg (121.2 lbs) ACHTUNG: Arbeitsschutzrichtlinien beim Anheben der Maschine beachten. ACHTUNG: Mit dem Netzschalter an der Einheit...

• Se possibile, utilizzare solo una mano per collegare o scollegare i cavi di segnale. • Non accendere assolutamente apparecchiature in presenza di incendi, perdite d'acqua o dannostrutturale. • Scollegare i cavi di alimentazione, i sistemi di telecomunicazione, le reti e il modem prima diaprire i c...

• 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 procedimientos de instalación y configuración. • Conecte y desconecte los cables, como se describe...

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 (37 lbs) ≥32 ...

Chapter 3. General information This chapter provides general information that applies to all machine types supported by this manual. Lenovo Welcome The Lenovo Welcome program introduces you to some innovative built-in features of Lenovo and guides youthrough a few important setup tasks to help you m...

Note: The ThinkVantage Productivity Center program is only available on computers preinstalled with the Windows Vista operating system from Lenovo. To access the ThinkVantage Productivity Center program, click Start ➙ All Programs ➙ ThinkVantage ➙ Productivity Center . Additional information resourc...

Specifications This section lists the physical specifications for your computer. Dimensions Width: 275 mm (10.83 inches) Height: 79 mm (3.11 inches) Depth: 238 mm (9.37 inches) Weight Maximum configuration as shipped: 4.18 kg (9.22 lb) Environment • Air temperature: Operating: 10°C to 35°C (50°F to ...

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...

• If the LED is not illuminated (off), go to step 2 on page 34 2. Check the status of the power indicator LED on the AC/DC power adapter. • If the LED is illuminated (on), go to step 7 on page 34. • If the LED is not illuminated (off), go to the next step 3 on page 34. 3. Verify that the power cord ...

Chapter 5. Diagnostics Diagnostic programs are used to test hardware components of your computer. Diagnostic programs canalso report operating-system-controlled settings that interfere with the correct operation of your computer.You can use the preinstalled Lenovo ThinkVantage Toolbox program to dia...

Running the diagnostic program from a diagnostic disc This section provides instructions on how to run the diagnostic program from a diagnostic disc that youcreated. To run the diagnostic program from a diagnostic disc that you created, do the following: 1. Make sure the optical drive you want to us...

Test results Diagnostics test results produce the following error code format: Function Code Failure Type DeviceID Date ChkDigits Text • Function Code: Represents the feature or function within the PC. • Failure Type: Represents the type of error encountered. • DeviceID: Contains the component's uni...

Viewing the test log Errors reported by the diagnostic test will be displayed by the program as a failed test. To view details of a failure or to view a list of test results, use the following procedure from any test categoryscreen: 1. Press F3 to activate the log file. 2. Press F3 again to save the...

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...

Password considerations A password can be any combination of up to 64 alphabetic and numeric characters. For security reasons, itis recommended to use a strong password that cannot be easily compromised. To set a strong password,use the following guidelines: • Have at least eight characters in lengt...

Note: A password can be any combination of up to 64 alphabetic and numeric characters. For more information, see “Password considerations” on page 42. Erasing lost or forgotten passwords (clearing CMOS) This section provides instructions on how to erase lost or forgotten passwords, such as a user pa...

Exiting from the Setup Utility program After you finish viewing or changing settings, press Esc to return to the Setup Utility program main menu.You might have to press Esc several times. Do one of the following: • If you want to save the new settings, press F10 to save and exit the Setup Utility pr...

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...

Diagnostic Error Code FRU/Action 000-198-XXX BIOS test aborted 1. Make sure the component that is called out is connected and/or enabled. See Chapter 6 “Using theSetup Utility program” on page 41. 2. Flash the system and re-test. See “Updating (flashing) the BIOS from a disc” on page 180. 3. Go to “...

Diagnostic Error Code FRU/Action 305-000-XXX Monitor DDC Test Passed No action 305-250-XXX Monitor DDC self test failure 1. Run the Setup Utility program to enable DDC 2. Cable 3. Monitor 4. Video card 5. System board 415-000-XXX Modem Test Passed No action 415-XXX-XXX Modem error Remove the Modem a...

Error code POST error message Description/Action 1820 More than one external fingerprintreader is attached. Power off andremove all but the reader that youset up within your main operatingsystem. If more than one external fingerprintreader is connected to a computer,this error message will be displa...

Message/Symptom FRU/Action Incorrect memory size during POST 1. Run the Memory tests 2. Memory Module 3. System Board "Insert a Diskette" icon appears with a known-gooddiagnostics diskette in the first 3.5-inch diskette drive. 1. System Board 2. Diskette Drive Cable 3. Network Adapter Intens...

e. External Cache f. External Cache RAM g. Hard disk drive h. Diskette drive 3. Turn on the power and the computer to re-test the system. 4. Repeat steps 1 through 3 until you find the failing device or adapter cards. If all devices and adapter cards have been removed, and the problem continues, rep...

Chapter 8. Replacing FRUs This chapter provides step-by-step instructions for replacing major FRUs. Important Be sure to read and understand the Chapter 2 “Safety information” on page 3 before replacing any FRU.These precautions and guidelines will help you work safely. FRU replacements are to be do...

Locating connectors on the rear of your computer Figure 2 “Rear connector locations” on page 70 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 71 shows the locations of the various components in yourcomputer. To open the computer cover, see “Opening the computer cover” on page 72. Figure 3. Component locations 1 Optical drive 7 Microprocessor 2 Front bezel 8 Memory module 3 Hard di...

Figure 4. System board part locations 1 Thermal sensor connector 10 PS/2 keyboard and mouse connector 2 Memory slots (2) 11 Front USB connector 2 (for connecting additional USB devices) 3 Battery 12 Cover presence switch connector (Intrusion switch connector) 4 Microprocessor fan connector 13 PCI ca...

CAUTION: Turn off the computer and wait three to five minutes to let the computer cool before opening thecomputer cover. To open the computer cover, do the following: 1. Remove all media from the drives. Then, turn off all attached devices and the computer. 2. Disconnect all power cords from electri...

3. Remove the front bezel by releasing the two plastic tabs and pivoting the front bezel outward. Figure 6. Removing the front bezel 4. To reinstall the front bezel, align the plastic tabs on the bottom of the bezel with the corresponding holes in the chassis, and then pivot the front bezel inward u...

4. Open the retaining clips. If you are replacing an old memory module, open the retaining clips and remove the memory module being replaced as shown. Figure 7. Removing the memory module 5. Insert the notched end 2 of the new memory module into the slot 1 . Press the memory module firmly and pivot ...

10. Install the new PCI card into the PCI card slot. Make sure that the PCI card is firmly fixed in the slot and does not move easily. 11. Close the PCI card retainer. 12. Slide the system board to the rear of the chassis and then pivot the system board until it snaps into position. 13. Reconnect al...

7. To install the new hard disk drive into the bracket, flex the bracket and align pin 1 , pin 2 , pin 3 , and pin 4 on the bracket with the corresponding holes in the hard disk drive. Do not touch the circuit board 5 on the bottom of the hard disk drive. Figure 12. Installing the hard disk drive in...

5. Press the blue release button and slide the optical drive out the front of the computer. Figure 13. Removing the optical drive 6. Install the optical drive retainer 1 on the side of the new optical drive. Figure 14. Installing the retainer on the optical drive 7. Slide the new optical drive into ...

Replacing the battery Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”in the ThinkCentre User Guide . To obtain a copy of the ThinkCentre User Guide , go to: http://www.lenovo.com/ThinkCentreUserGuides Your computer has a ...

7. Turn on the computer and all attached devices. 8. Use the Setup Utility program to set the date, time, and any passwords. See Chapter 6 “Using the Setup Utility program” on page 41. Replacing the heat sink Attention: Do not open your computer or attempt any repair before reading and understanding...

4. Follow this sequence to remove the four screws that secure the heat sink to the system board: a. Partially remove screw 1 , then fully remove screw 2 , and then fully remove screw 1 . b. Partially remove screw 3 , then fully remove screw 4 , and then fully remove screw 3 . Note: Carefully remove ...

b. Note the orientation of the microprocessor in the socket. You can either look for the small triangle 1 on one corner of the microprocessor or note the orientation of the notches 2 on the microprocessor. This is important when installing the new microprocessor on the system board. c. Touch only th...

16. Reconnect all cables that were disconnected from the system board. 17. Go to “Completing the parts replacement” on page 98. Replacing the system board Attention: Do not open your computer or attempt any repair before reading and understanding the “Important safety information”in the ThinkCentre ...

Figure 23. Installing the socket cover Note: Your microprocessor socket and cover might look slightly different from the illustration. 5. Carefully press the other side of the socket cover downwards until the socket cover snaps into place. Figure 24. Securing the socket cover 6. Carefully check the ...

To replace the system fan assembly, 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. Open the computer cover. See “Openin...

7. Pull and lift the system fan assembly out of the chassis. Figure 26. Removing the system fan assembly 8. When installing your new system fan assembly, use the new rubber mounts that come with the new system fan. 9. Install the two short rubber mounts in the new system fan assembly as shown. 10. I...

11. To install the new system fan assembly into the chassis, align the other two holes in the system fan assembly with the long rubber mounts in the chassis. Pull the rubber mounts through the holes in thesystem fan assembly until the system fan is in place. Figure 27. Installing the system fan asse...

5. Press the internal speaker lock latch 1 , slide the internal speaker downwards to remove it from the chassis. Figure 28. Removing the internal speaker 6. Position the new internal speaker into the metal clips 2 and push the internal speaker upwards until it is secured by the lock latch 1 . 7. Con...

7. Completely remove the front audio and USB assembly bracket from the chassis. 8. Remove the two screws that secure the front audio and USB assembly to its bracket and remove the failing front audio and USB assembly from the bracket. 9. Install a new front audio and USB assembly into the bracket an...

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. Disconnect the power cord from the electrical outlet. 3. Disconnect the ac power adapter f...

4. Press the metal clip 1 as shown and then lift the power adapter bracket up to remove it from the chassis. Figure 33. Removing the ac power adapter bracket 5. Slide the ac power adapter out of the bracket. 96 ThinkCentre Hardware Maintenance Manual

Completing the parts replacement After completing the installation or replacement for all parts, you need to close the computer cover andreconnect cables. Depending on the parts you installed or replaced, you might need to confirm the updatedinformation in the Setup Utility program. Refer to Chapter...

Chapter 9. FRU lists This chapter lists the information on the field replaceable units (FRUs). Attention: Be sure to read and understand all the safety information before replacing any FRUs. Note: In the following tables, a customer replaceable unit (CRU) is identified as either "1", "2&...

Item # FRUs FRU # CRU • MT 4168: A1G • MT 5067: A1G A3G • MT 7516: • MT 7519: Mechanical FRUs Mechanical FRUs FRU # CRU FRU, 4.8L Intel 65W thermal kit • MT 0266: all models • MT 0384: all models • MT 4168: all models • MT 5067: all models • MT 7516: all models • MT 7519: all models 03T7055 2 FRU, p...

Mechanical FRUs FRU # CRU FRU, system board tray assembly • MT 0266: all models • MT 0384: all models • MT 4168: all models • MT 5067: all models • MT 7516: all models • MT 7519: all models 45K6220 2 FRU, C2 switch assembly • MT 0266: all models • MT 0384: all models • MT 4168: all models • MT 5067:...

Mice FRU # CRU Lenovo enhanced optical USB mouse • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 45J4889 1 Optical wheel mouse PS/2 • MT 0266: B6M B7U B7F B7S B7M B8U B8F B8S B8M A1H A1V A2H A2V A3A A3T A4A A4T B4S B4D B4Y B5S B5D B5Y C8G C9G C2J C3J C4J C5J C6J C7J B9GC1G A5G A6G ...

Power Cords Power Cords FRU # CRU Line Cord - US • MT 0266: B7U B7F B7S B8U B8F B8S A3A A3T A4A A4T B4S B4D B5S B5D D1U D1F D1S D3U D3F D3S • MT 0384: • MT 4168: • MT 5067: A2U A2F A2S A2L A2D A1U A1F A1S A1L A1D A1A A1T A3U A3F A3S A3L A3D A3A A3T • MT 7516: A3A A3T A4A A4T B4S B4D C5U C5F C5S • MT...

Power Cords FRU # CRU Line Cord - Israel • MT 0266: C8G C9G B9G C1G A5G A6G A7G A8G A9G B1G B2G B3G D2G • MT 0384: A9G A7G A8G A1G A2G A3G A4G A5G A6G • MT 4168: A1G • MT 5067: A1A A3A • MT 7516: B7G A5G A6G A7G A8G A9G B1G B2G B3G • MT 7519: A2G A3G A4G A5G A6G 41R3237 1 Line Cord - Austria, Belgiu...

Windows 7 Home Basic 32 Recovery CD Windows 7 Home Basic 32 FRU # CRU Arabic • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0883 1 Brazilian Portuguese • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0884 1 Chinese-simplified • MT 0266: • MT 0384: • MT 4168...

Windows 7 Home Basic 32 FRU # CRU Spanish • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0888 1 Serbian-Latin • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0889 1 Turkish • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0890 1 English ...

Windows 7 Home Premium 64 FRU # CRU • MT 4168: • MT 5067: • MT 7516: • MT 7519: Windows 7 Home Premium 32 Recovery CD Windows 7 Home Premium 32 FRU # CRU Brazilian Portuguese • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0919 1 Chinese-Simplified • MT 0266: • MT 0384: • MT 416...

Windows XP Professional 32 Recovery CD Windows XP Professional 32 FRU # CRU Japanese • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0501 1 English • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0502 1 Brazil Portuguese • MT 0266: • MT 0384: • MT 4168: • MT...

Windows XP Professional 32 FRU # CRU Swedish • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0735 1 Turkish • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T0736 1 Windows 7 Professional 64 Recovery CD Windows 7 Professional 64 FRU # CRU Arabic • MT 0266: D2G...

Windows 7 Professional 64 FRU # CRU C&L EMEA (NL/FR/GR/IT/EN) • MT 0266: D2G • MT 0384: • MT 4168: • MT 5067: A3G • MT 7516: • MT 7519: A2G A3G 03T0917 1 C&L Croatian (EN/SL/CR) • MT 0266: D2G • MT 0384: • MT 4168: • MT 5067: A3G • MT 7516: • MT 7519: A2G A3G 03T0918 1 Windows XP Professiona...

Windows XP Professional Generic FRU # CRU Korean • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03W7489 1 Dutch • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03W7490 1 Portuguese • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03W7493 1 Window...

Windows Vista Home Basic 32 Recovery CD Windows Vista Home Basic 32 FRU # CRU India English • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T1313 1 French • MT 0266: • MT 0384: • MT 4168: • MT 5067: • MT 7516: • MT 7519: 03T1314 1 Japanese • MT 0266: • MT 0384: • MT 4168: • MT 50...

Chapter 10. 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 • Secure Managed Client (some models) Hardware-contr...

3. Levels 1 and 2 Support To update (flash) the BIOS, see “Updating (flashing) the BIOS from a disc” on page 180. Updating (flashing) the BIOS from a disc This section provides instructions on how to update (flash) the BIOS from a disc. Note: You can download a self-starting bootable disc image (kno...

Recovering from a POST/BIOS update failure If the power to your computer is interrupted while the POST and BIOS is being updated, your computermight not restart correctly. If this happens, perform the following procedure to recover from the POST andBIOS update failure. This procedure is commonly cal...

Index A Administrator, password 42 B battery, replacing 80 boot-block recovery 181 C cables, connecting 98 changing password 42 startup device sequence 44 CMOS, clearing 43 components, internal 71 computer cover opening 73 connectors rear 70 connectors, controls, indicators front 69 considerations, ...