Lenovo M4350 Desktop- Manuals

About this manual This manual provides service and reference information for Lenovo ® desktop computers listed on the front cover. Chapter 6 “Symptom-to-FRU index” on page 55 and Chapter 9 “Additional service information” on page 105are not specific to any machine type and are applicable to all Leno...

Chapter 1. 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 A corrente elétrica proveniente de cabos de alimentação, de telefone e de comunicações é perigosa. 8 Lenovo M4350 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 2. General information This chapter provides general information that applies to all machine types supported by this manual. Specifications This section lists the specifications for your computer. Dimensions Width: 160.00 mm (6.30 inches) Height: 392.10 mm (15.44 inches) Depth: 378.50 mm (14...

Lenovo Support Web site Technical support information is available on the Lenovo Support Web site at:http://www.lenovo.com/support This Web site is updated with the latest support information such as the following: • Drivers and software • Diagnostic solutions • Product and service warranty • Produc...

Chapter 3. General checkout Attention The drives in the computer you are servicing might have been rearranged or the drive startup sequence mighthave been changed. Be extremely careful during write operations such as copying, saving, or formatting.Data or programs can be overwritten if you select an...

Chapter 4. Troubleshooting and diagnostics This chapter describes some basic troubleshooting and diagnostic programs. If your computer problem isnot described here, see “Lenovo Support Web site” on page 28 for additional troubleshooting resources. Basic troubleshooting The following table provides i...

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...

• Make sure that the program you are running is designed for use in the Microsoft Windows operating system. If the program is designed to run in DOS, the program does not use the Windows sound featureand must be configured to use SoundBlaster Pro or SoundBlaster emulation. • Verify that the audio de...

Action: If you have multiple CD or DVD drives installed (or a combination of CD and DVD drives), try insertingthe disc into the other drive. In some cases, only one of the drives is connected to the audio subsystem. If this does not correct the problem, follow the action for “A CD or DVD does not wo...

DVD movie will not play Symptom: DVD movie will not play. Actions: • Make sure that the disc surface is clean and not scratched. • Check the disc or package for regional coding. You might need to purchase a disc with coding for the region where you are using your computer. If these actions do not co...

• “The pointer on the screen does not move smoothly with the mouse” on page 38 • “The wireless keyboard does not work” on page 38 All or some keys on the keyboard do not work Symptom: All or some keys on the keyboard do not work. Actions: • Verify that the keyboard cable is securely connected to the...

• The batteries still retain their current. • The wireless Keyboard is located less than ten meters away from the transceiver. • The transceiver is fully installed. Action: If the Transceiver Communications LED is not on, reconnect the transceiver and the keyboard. Monitor problems Note: Many monito...

The image appears to be flickering Symptom: The image appears to be flickering. 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: Usi...

Option problems Use this information to diagnose problems with Lenovo hardware options that do not have their owntroubleshooting information. Select your symptom from the following list: • “An option that was just installed does not work” on page 43 • “An option that previously worked does not work ...

Note: Depending on the size of the hard disk drive and amount of data currently stored on the hard disk drive, the disk-defragmentation process might take up to several hours to complete. Insufficient memory Symptom: Insufficient memory In general, the more memory that is installed, the better the W...

Software problems Select your symptom from the following list: • “When using a sort feature, dates do not sort in the correct order” on page 46 • “Software does not work as expected” on page 46 When using a sort feature, dates do not sort in the correct order Symptom: When using a sort feature, date...

• Make sure the USB cable is securely connected to the USB connector and to the USB device. If the USB device has its own power cord, make sure it is attached to a properly grounded electrical outlet. • If the USB device has its own On/Off switch, make sure it is in the On position. • If the USB dev...

Chapter 5. 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 50. Erasing lost or forgotten passwords (clearing CMOS) This section provides instructions on how to erase lost or forgotten passwords, such as a user pa...

• Enabling the after power loss feature The after power loss feature enables your computer to wake up when the power supply resumes after asudden loss of electricity. To enable the after power loss feature, do the following: 1. Start the Setup Utility program. See “Starting the Setup Utility program...

Chapter 6. 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 3 “General checkout” on page 29. 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 5 “Using the Setup Utilityprogram” on page 49. 2. Start the Setup Utility prog...

Miscellaneous error messages Message/Symptom FRU/Action Changing display colors Display/Monitor Computer will not power-off. See “Hard disk drive boot error” on page 55. 1. Power Switch 2. System Board 3. Riser card, if installed Computer will not RPL from server 1. Ensure that network is in startup...

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...

Locating connectors on the rear of your computer Figure 2 “Rear connector locations” on page 62 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....

Connector Description Ethernet connector Used to attach an Ethernet cable for a local area network (LAN). Note: To operate the computer within FCC Class B limits, use a Category 5 Ethernet cable. Microphone connector Used to attach a microphone to your computer when you want to record sound or ifyou...

Locating parts on the system board Figure 4 “System board part locations” on page 66 shows the locations of the parts on the system board. Figure 4. System board part locations 1 4-pin power connector 11 Front USB connector 1 (for connecting USB ports on the front bezel) 2 Microprocessor 12 Clear CM...

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 8. Replacing FRUs Important: Before you replace any FRU, be sure to read and understand Chapter 1 “Safety information” on page 1. These precautions and guidelines will help you work safely. FRU replacements are to be done only by trained service technicians. This chapter provides instruction...

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

To remove and reinstall the front bezel, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See “Removing the computer cover” on page 69. 3. Remove the front bezel by releasing the three plastic tabs on the left side and p...

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 8. Reinstalling the front bezel 5. To complete the installation or r...

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 connector on the system board. See “Locating parts on the system board” on page 66.Then, locate an available five-wire power connector and connect it to the rear of the new hard disk ...

6. From inside the chassis, pivot the retaining clip 1 that secures the plastic holder of the thermal sensor inward and then push the clip outward to release the clip. Then disengage the plastic holder holdingthe thermal sensor from the chassis. Figure 12. Removing the thermal sensor 7. Pull the ent...

8. Insert the connector and cable of the new thermal sensor into the hole 1 in the chassis. Then align the two tabs on the plastic holder holding the thermal sensor with the two holes 1 and 2 in the chassis, and push the plastic holder until it snaps into position. Figure 13. Installing the new ther...

5. Disconnect the front audio and USB assembly cables from the system board. See “Locating parts on the system board” on page 66. Note: Make sure you note the locations of the cables when you disconnect the cables from the system board. 6. Remove the screw that secures the front audio and USB assemb...

6. Connect one end of the signal cable to the rear of the new optical drive and the other end to an available SATA connector on the system board. See “Locating parts on the system board” on page 66. Then,locate an available five-wire power connector and connect it to the rear of the new optical driv...

Hazardous voltage, current, and energy levels are present inside any component that has this labelattached. There are no serviceable parts inside these components. If you suspect a problem withone of these parts, contact a service technician. To replace the power supply assembly, do the following: 1...

11. To complete the installation or replacement, go to “Completing the parts replacement” on page 103. Replacing the system fan Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Safetyinformation” on page 1. This section provides instructions ...

Figure 20. 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 66. 9. To complete the installation or replacement, go to “Completing the parts replacement” on page 103. Installing or replacing...

• 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 22. 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 t...

7. Pivot the card latch to the closed position to secure the PCI card. Figure 23. Installing a PCI card 8. Reinstall the screw to secure the PCI card latch in place. 9. To complete the installation or replacement, go to “Completing the parts replacement” on page 103. Replacing the battery Attention:...

4. Remove the old battery. Figure 24. Removing the old battery 5. Install a new battery. Figure 25. Installing a new battery 6. Reinstall the computer cover and connect the cables. See “Completing the parts replacement” on page 103. Note: When the computer is turned on for the first time after repla...

5. Remove any parts that might prevent your access to the memory slots. Depending on your computer model, you might need to remove the PCI Express x16 graphics card for easier access to the memoryslots. See “Installing or replacing a PCI card” on page 82. 6. Depending on whether you are installing o...

7. Position the new memory module over the memory slot. Make sure that the notch 1 on the memory module aligns correctly with the slot key 2 on the system board. Push the memory module straight down into the slot until the retaining clips close. Figure 28. Installing a memory module 8. Reinstall the...

Replacing the microprocessor Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Safetyinformation” on page 1. This section provides instructions on how to replace the microprocessor. CAUTION: The heat sink and microprocessor might be very hot. ...

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 triangle 1 on one corner of the microprocessor or note the orientation of the ...

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

The failing system board must be returned with a microprocessor socket cover to protect the pins duringshipping and handling. To install the microprocessor socket cover, do the following: 1. Release the lever securing the microprocessor retainer and open the retainer to access the microprocessor. 2....

3. If your computer comes with a WiFi card module that supports the Bluetooth function, disconnect the Bluetooth cable from the WiFi adapter card. Figure 35. Disconnecting the Bluetooth cable Note: The Bluetooth cable connects the Bluetooth connector on the WiFi adapter card to the front USB connect...

5. Grasp the WiFi adapter card that is currently installed and gently pull it out of the slot. Figure 36. Removing the WiFi adapter card 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. Removin...

2. Remove the two screws that secure the WiFi card module to the WiFi adapter card. Figure 38. Removing the screws that secure the WiFi card module 3. Pull the WiFi card module out of the mini PCI Express slot to remove it from the WiFi adapter card. Figure 39. Removing the WiFi card module Installi...

1. Insert the WiFi card module into the mini PCI Express slot, and then install the two screws to secure the WiFi card module to the WiFi adapter card. Figure 40. Installing the WiFi card module 98 Lenovo M4350 Hardware Maintenance Manual

2. Connect the front antenna cable and rear antenna cable to the WiFi card module. Figure 41. Installing the WiFi antenna cables 3. Install the WiFi adapter card into the PCI Express x1 slot on the system board. See “Locating parts on the system board” on page 66. 4. If the installed WiFi card modul...

• To complete the installation or replacement, go to “Completing the parts replacement” on page 103. Installing or removing the rear WiFi antenna Attention: Do not open your computer or attempt any repair before reading and understanding the Chapter 1 “Safetyinformation” on page 1. This section prov...

3. Hold the thicker end of the rear WiFi antenna and unscrew the WiFi antenna from the rear of the computer. Figure 44. Removing the rear WiFi 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 “Compl...

Figure 45. 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 46. Installing the front WiFi antenna 6. Connect the front antenna cable to the WiFi card module. What t...

• To complete the installation or replacement, go to “Completing the parts replacement” on page 103. Removing the front WiFi antenna To remove the front WiFi antenna, do the following: 1. Turn off the computer and disconnect all power cords from electrical outlets. 2. Remove the computer cover. See ...

3. If you have removed the front bezel, reinstall it. See “Removing and reinstalling the front bezel” on page 70. 4. Position the computer cover on the chassis so that the rail guides on the bottom of the computer cover engage the rails on the chassis. Then, push the cover to the front of the comput...

Chapter 9. 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 Hardware-controlled passwords Use the Setup Utility p...

Updating (flashing) the BIOS from your operating system Note: Because Lenovo makes constant improvements to its Web sites, the Web page contents are subject to change without notice, including the contents referenced in the following procedure. To update (flash) the BIOS from your operating system, ...

14. Turn on the computer to restart the operating system. 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...

Index A Administrator, password 50 audio line-in connector 62 audio line-out connector 62 B basic troubleshooting 31 battery, replacing 85 BIOS settings, changing 53 Boot-block Recovery 107 C changing password 50 startup device sequence 52 CMOS, clearing 51 computer cover removing 69 computer cover,...