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•

Always On USB 3.0 connector

Used to connect a device that requires a USB 2.0 or USB 3.0 connection, such as a keyboard, a mouse, a
scanner, a printer, or a personal digital assistant (PDA). With the ac power adapter connected, you can
charge the automatically detected device even when the computer is in hibernation mode or turned off. If
the Always On USB connector function is not enabled, open the Power Manager program and enable the
function. To open the Power Manager program, see “Accessing a program on your computer” on page
38. To enable the Always On USB connector, refer to the help system of the Power Manager program.

•

Headset connector

Used to connect a headset or headphones to your computer.

•

Microphone connector

Used to connect a microphone to your computer. You can use the microphone to record audio or use
speech-recognition software.

•

Power button

Used to turn on your computer. You also can use the power button to turn off your computer only when
you cannot use any Microsoft

®

Windows

®

shutdown procedure to turn off your computer.

•

Storage drive activity indicator

When the indicator is on, the storage drives are in use.

•

USB 3.0 connector

Used to connect a device that requires a USB 2.0 or USB 3.0 connection, such as a keyboard, a mouse, a
scanner, a printer, or a PDA.

28

ThinkCentre M700 and M900 Hardware Maintenance Manual

Содержание ThinkCentre M700

Страница 1: ...ThinkCentre M700 and M900 Hardware Maintenance Manual Machine Types 10FL 10FM 10FR 10FS 10HY 10J0 10JM 10JN 10JQ 10JR 10JS and 10JT ...

Страница 2: ...fety information on page 1 and Appendix F Notices on page 155 Second Edition January 2016 Copyright Lenovo 2015 2016 LIMITED AND RESTRICTED RIGHTS NOTICE If data or software is delivered pursuant a General Services Administration GSA contract use reproduction or disclosure is subject to restrictions set forth in Contract No GS 35F 05925 ...

Страница 3: ...ormation 45 Using the external battery kit 46 Chapter 4 You and your computer 49 Arranging your workspace 49 Glare and lighting 49 Air circulation 49 Electrical outlet locations and cable lengths 49 Comfort 49 Accessibility information 50 Cleaning your computer 53 Maintenance 53 Basic maintenance tips 53 Good maintenance practices 54 Keeping your computer current 54 Moving your computer 55 Chapter...

Страница 4: ... the computer cover 108 Replacing the system fan 110 Replacing the internal speaker 112 Replacing the internal speaker holder 114 Replacing the heat sink 116 Replacing the microprocessor 117 Replacing the storage drive 119 Replacing a memory module 123 Replacing the coin cell battery 125 Replacing the Wi Fi card 126 Replacing the Wi Fi antennas 127 Replacing the system board 131 Completing the par...

Страница 5: ...Turkish RoHS 149 Ukraine RoHS 150 India RoHS 150 Appendix D China Energy Label 151 Appendix E ENERGY STAR model information 153 Appendix F Notices 155 Trademarks 156 Copyright Lenovo 2015 2016 iii ...

Страница 6: ...iv ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 7: ...oubleshoot problems Important This manual is intended only for trained service technicians who are familiar with Lenovo computers Use this manual along with the advanced diagnostic tests to troubleshoot problems effectively Before servicing a Lenovo computer be sure to read and understand Chapter 1 Read this first Important safety information on page 1 Copyright Lenovo 2015 2016 v ...

Страница 8: ...vi ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 9: ...can eventually result in overheating Ensure that all power cord connectors are securely and completely plugged into receptacles Do not use any power adapter that shows corrosion at the ac input pins or shows signs of overheating such as deformed plastic at the ac input or anywhere on the power adapter Do not use any power cords where the electrical contacts on either end show signs of corrosion or...

Страница 10: ...ce that is worn or defective Reinstall all covers correctly before returning the machine to the customer CAUTION Hazardous moving parts Keep fingers and other body parts away CAUTION Before you open the computer cover turn off the computer and wait several minutes until the computer is cool Electrical safety CAUTION Electrical current from power telephone and communication cables can be hazardous ...

Страница 11: ...robe leads and accessories for that tester Stand on suitable rubber mats obtained locally if necessary to insulate you from grounds such as metal floor strips and machine frames Observe the special safety precautions when you work with very high voltages these instructions are in the safety sections of maintenance information Use extreme care when measuring high voltages Regularly inspect and main...

Страница 12: ...to measure third wire ground continuity for 0 1 ohm or less between the external ground pin and frame ground b The power cord should be the appropriate type as specified in the parts listings c Insulation must not be frayed or worn 4 Remove the cover 5 Check for any obvious alterations Use good judgment as to the safety of any alterations 6 Check inside the unit for any obvious unsafe conditions s...

Страница 13: ... can use coax or connector outside shells on these systems Use the round ground prong of the ac plug on ac operated computers Grounding requirements Electrical grounding of the computer is required for operator safety and correct system function Proper grounding of the electrical outlet can be verified by a certified electrician Safety notices multi lingual translations The caution and danger safe...

Страница 14: ...an equivalent type battery recommended by the manufacturer If your system has a module containing a lithium battery replace it only with the same module type made by the same manufacturer The battery contains lithium and can explode if not properly used handled or disposed of Do not Throw or immerse into water Heat to more than 100 C 212 F Repair or disassemble Dispose of the battery as required b...

Страница 15: ...and the power switch on the power supply do not turn off the electrical current supplied to the device The device also might have more than one power cord To remove all electrical current from the device ensure that all power cords are disconnected from the power source 1 2 Chapter 1 Read this first Important safety information 7 ...

Страница 16: ...8 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 17: ...8 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb 1 2 PERIGO A corrente elétrica proveniente de cabos de alimentação de telefone e de comunicações é perigosa Chapter 1 Read this first Important safety information 9 ...

Страница 18: ...tivos 3 Conecte os cabos de sinal aos conectores 4 Conecte os cabos de alimentação às tomadas 5 LIGUE os dispositivos 1 DESLIGUE Tudo 2 Primeiramente remova os cabos de alimentação das tomadas 3 Remova os cabos de sinal dos conectores 4 Remova todos os cabos dos dispositivos CUIDADO Ao substituir a bateria de lítio utilize apenas uma bateria com Número de Peça 45C1566 ou um tipo de bateria equival...

Страница 19: ...te exposição direta ao feixe 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb CUIDADO Utilize procedimentos de segurança para levantar equipamentos CUIDADO O botão de controle de alimentação do dispositivo e o botão para ligar desligar da fonte de alimentação não desligam a corrente elétrica fornecida ao dispositivo O dispositivo também pode ter mais de um cabo de alimentação Para remover toda a corrente ...

Страница 20: ...12 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 21: ...1 2 Chapter 1 Read this first Important safety information 13 ...

Страница 22: ...1 2 14 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 23: ...roduit ou des périphériques qui lui sont raccordés reportez vous aux instructions ci dessous pour connecter et déconnecter les différents cordons 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 ...

Страница 24: ...tiennent une diode à laser intégrée de classe 3A ou 3B Prenez connaissance des informations suivantes Rayonnement laser lorsque le carter est ouvert Evitez toute expositiondirecte au rayon laser Evitez de regarder fixement le faisceau ou del observer à l aide d instruments optiques 18 kg 37 lb 32 kg 70 5 lb 55 kg 121 2 lb ATTENTION Soulevez la machine avec précaution ATTENTION L interrupteur de co...

Страница 25: ...ind Zum Installieren Transportieren und Öffnen der Abdeckungen des Computers oder der angeschlossenen Einheiten die Kabel gemäß der folgenden Tabelle anschließen und abziehen Zum Anschließen der Kabel gehen Sie wie folgt vor Zum Abziehen der Kabel gehen Sie wie folgt vor 1 Schalten Sie alle Einheiten AUS 2 Schließen Sie erst alle Kabel an die Einheiten an 3 Schließen Sie die Signalkabel an die Buc...

Страница 26: ...n verwendet kann gefährliche Laserstrahlung auftreten VORSICHT Einige Lasergeräte enthalten eine Laserdiode der Klasse 3A oder 3B Beachten Sie Folgendes Laserstrahlung bei geöffneter Verkleidung Nicht in den Strahl blicken Keine Lupen oder Spiegel verwenden Strahlungsbereich meiden 18 kg 32 kg 55 kg ACHTUNG Arbeitsschutzrichtlinien beim Anheben der Maschine beachten ACHTUNG Mit dem Netzschalter an...

Страница 27: ...1 2 Chapter 1 Read this first Important safety information 19 ...

Страница 28: ...1 2 20 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 29: ...i installazione spostamento o apertura dei coperchi di questo prodotto o delle unità collegate Per collegarsi Per scollegarsi 1 SPEGNERE le apparecchiature 2 Innanzitutto collegare tutti i cavi alle unità 3 Collegare i cavi di segnale ai connettori 4 Collegare i cavi di alimentazione alla presa 5 Accendere l unità 1 SPEGNERE le apparecchiature 2 Innanzitutto rimuovere i cavi di alimentazione dalla...

Страница 30: ...gono un diodo laser di Classe 3A o Classe 3B Tener presente quanto segue Aprendo l unità vengono emesse radiazioni laser Non fissare il fascio non guardarlo direttamente con strumenti ottici ed evitare l esposizione al fascio 18 kg 32 kg 55 kg ATTENZIONE Prestare attenzione nel sollevare l apparecchiatura ATTENZIONE Il pulsante di controllo dell alimentazione presente sull unità e l interruttore d...

Страница 31: ...Chapter 1 Read this first Important safety information 23 ...

Страница 32: ...antenimiento o reconfiguración de este producto durante una tormenta eléctrica Conecte todos los cables de alimentación a tomas de corriente debidamente cableadas y conectadas a tierra Cualquier equipo que se conecte a este producto también debe conectarse a tomas de corriente debidamente cableadas Siempre que sea posible utilice una sola mano para conectar o desconectar los cables de señal 24 Thi...

Страница 33: ...vos PRECAUCIÓN Cuando sustituya una batería de litio utilice solamente una batería número de pieza 45C1566 u otra de tipo equivalente recomendada por el fabricante Si su sistema dispone de un módulo que contiene una batería de litio reemplácelo sólo con el mismo tipo de módulo del mismo fabricante La batería contiene litio y puede explotar si no se utiliza manipula o desecha correctamente No debe ...

Страница 34: ...rocedimientos seguros al levantar el equipo PRECAUCIÓN El botón de control de alimentación del dispositivo y el interruptor de alimentación de la fuente de alimentación no desconectan la corriente eléctrica suministrada al dispositivo Además el dispositivo podría tener más de un cable de alimentación Para suprimir toda la corriente eléctrica del dispositivo asegúrese de que todos los cables de ali...

Страница 35: ...8 Hardware locations This section provides information about the locations of your computer hardware Note The computer hardware might look slightly different from the illustrations Front view Figure 1 Front view 1 Power button 2 Storage drive activity indicator 3 USB 3 0 connector 4 Microphone connector 5 Headset connector 6 Always On USB 3 0 connector Copyright Lenovo 2015 2016 27 ...

Страница 36: ...or refer to the help system of the Power Manager program Headset connector Used to connect a headset or headphones to your computer Microphone connector Used to connect a microphone to your computer You can use the microphone to record audio or use speech recognition software Power button Used to turn on your computer You also can use the power button to turn off your computer only when you cannot...

Страница 37: ...pports the smart power on feature that enables you to turn on the computer or wake it up from S4 hibernation mode by pressing Alt P on the keyboard You can enable or disable the smart power on feature from the Setup Utility program For detailed information see Enabling or disabling a device on page 63 ac power adapter connector Used to connect the ac power adapter to your computer for power supply...

Страница 38: ...Padlock loop For information see Locking the computer cover on page 57 Security lock slot For information see Attaching a Kensington style cable lock on page 59 USB 3 0 connector Used to connect a device that requires a USB 2 0 or USB 3 0 connection such as a keyboard a mouse a scanner a printer or a PDA Wi Fi antenna slot Used to install the rear Wi Fi antenna cable connector that is available on...

Страница 39: ...i card 14 2 5 inch storage drive 15 Coin cell battery 16 Storage drive bracket 17 M 2 storage drive 18 System board 19 Rear Wi Fi antenna 20 VESA mount bracket 21 External optical drive 22 External box external battery box external optical drive box or I O box Note A 90 watt ac power adapter is required to ensure that the I O box operates properly A 90 watt ac power adapter is shipped with your co...

Страница 40: ... which FRUs are also self service CRUs or optional service CRUs 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 Other self service CRUs depending on product design might include memory modules adapter cards hard disk drives and optical drives 32 ThinkCentre M700 and ...

Страница 41: ...er holder No No 8 Internal speaker Yes No 9 Microprocessor No No 10 Heat sink No No 11 Front Wi Fi antenna No No 12 System fan No Yes 13 Chassis No No 14 Wi Fi card No Yes 15 Coin cell battery No Yes 16 M 2 storage drive No Yes 17 Storage drive bracket No Yes 18 2 5 inch storage drive No Yes 19 Rear Wi Fi antenna No No 20 System board No No 21 VESA mount bracket Yes No 22 External optical drive Ye...

Страница 42: ...m board 1 Memory slot 2 M 2 Wi Fi card slot 3 Coin cell battery 4 M 2 storage drive slot 5 SATA 3 0 storage drive connector 6 System fan connector 7 Optional serial connector 8 Optional display connector 9 Cover presence switch connector Intrusion switch connector 10 Thermal sensor 11 Microprocessor socket 12 Internal speaker connector 13 Memory slot 34 ThinkCentre M700 and M900 Hardware Maintenan...

Страница 43: ...puter features introduced in this section apply to various models Information about your computer To view basic information such as microprocessor and memory information about your computer do the following 1 Click the Start button to open the Start menu 2 Depending on your Windows version do one of the following For Windows 7 Right click Computer and then click Properties For Windows 10 Click Set...

Страница 44: ...er supports up to two storage drives hard disk drives hybrid drives or solid state drives To view the amount of storage drive space do the following 1 Depending on your Windows version do one of the following For Windows 7 Click the Start button to open the Start menu Right click Computer and then click Manage For Windows 10 Right click the Start button to open the Start context menu 2 Click Disk ...

Страница 45: ...ling or disabling the ICE Thermal Alert feature on page 65 Intel Standard Manageability Intel Standard Manageability is hardware and firmware based technology that makes computers easier and less expensive for businesses to monitor maintain update upgrade and repair Intel Active Management Technology AMT available on some models Intel Active Management Technology is hardware and firmware based tec...

Страница 46: ...40 F to 60 C 140 F Storage without package From 10 C 14 F to 60 C 140 F Humidity Operating 20 80 non condensing Storage 20 90 non condensing Altitude Operating From 15 2 m 50 ft to 3048 m 10 000 ft Storage From 15 2 m 50 ft to 10 668 m 35 000 ft Electrical input Input voltage From 100 V ac to 240 V ac Input frequency 50 60 Hz Programs This section provides information about the programs on your co...

Страница 47: ... a program on your computer on page 38 2 View the program icons using Tiles 3 Follow the instructions under greyed out icons to locate the icon for the desired program Then double click the icon to install the program An introduction to Lenovo programs This section provides information about the major Lenovo programs available on your operating system Note Depending on your computer model some of ...

Страница 48: ... Lenovo ID and access all supported Lenovo programs and web portals with single sign on For Windows 7 and Windows 10 Lenovo Bluetooth Lock The Lenovo Bluetooth Lock program enables you to use a Bluetooth device such as your smartphone as a proximity based unit for locking or unlocking your computer automatically By detecting the distance between your computer and the predefined Bluetooth device th...

Страница 49: ...t displayed in the Windows notification area add the icon to the notification area See Adding an icon to the Windows notification area on page 41 2 Follow the instructions on the screen to adjust the volume Click the speaker icon to mute the audio Adding an icon to the Windows notification area To add an icon to the Windows notification area do the following 1 Click the arrow next to the notificat...

Страница 50: ...sc Do not drop or bend the disc Playing and removing a disc To play a disc do the following 1 With the computer on press the eject close button on the front of the optical drive The tray slides out of the drive 2 Insert a disc into the tray Some optical drive has a snap hub in the center of the tray If your drive has a snap hub support the tray with one hand and then push center of the disc until ...

Страница 51: ...Media Player See Accessing a program on your computer on page 38 3 Follow the instructions on the screen Burn a disc from an ISO file 1 Insert a recordable disc into the optical drive that supports recording 2 Double click the ISO file 3 Follow the instructions on the screen Recording a disc using preinstalled programs To record a disc using preinstalled programs do the following 1 Insert a record...

Страница 52: ...oth enabled device within a distance of about 10 m 32 8 ft Note The Bluetooth feature is supported only on some models To connect to a Bluetooth enabled device do the following 1 Ensure that the Bluetooth feature on your computer is working and the Bluetooth enabled device is located within a distance of about 10 m 32 8 ft from your computer 2 Click the Bluetooth icon in the Windows notification a...

Страница 53: ...connectors on the I O box cannot be enabled or disabled individually To enable or disable any of the connectors on the I O box enable or disable the USB connectors 3 and 4 on the rear of the computer The I O box enables you to wake up the computer from S3 standby mode through operations on devices connected to the I O box connectors External battery box This section provides the following informat...

Страница 54: ...ery may become unusable and might be disabled Batteries supplied by Lenovo for use with your product have been tested for compatibility and should only be replaced with approved parts A battery pack other than the one specified by Lenovo or a disassembled or modified battery pack is not covered by the warranty Lenovo does not support batteries that are not genuine Lenovo made or authorized Lenovo ...

Страница 55: ...onnected Red indicator flashes Battery usage reaches 500 times maximum guaranteed Red indicator always on Battery failing or incorrectly installed Additional instructions In the case of an ac power failure if the computer is connected to a sufficiently charged external battery the computer will turn to be powered by the external battery and enter hibernation state After the computer enters hiberna...

Страница 56: ...48 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 57: ...mpossible to avoid reflections or to adjust the lighting an antiglare filter placed over the screen might be helpful However these filters might affect the clarity of the image on the screen try them only after you have exhausted other methods of reducing glare Air circulation Your computer produces heat The computer has a fan that pulls in fresh air and forces out hot air through the air vents Bl...

Страница 58: ...nformation Lenovo is committed to providing users who have hearing vision and mobility limitations with greater access to information and technology This section provides information about the ways these users can get the most out of their computer experience You also can get the most up to date accessibility information from the following Web site http www lenovo com accessibility Keyboard shortc...

Страница 59: ...rd displays a visual keyboard with all the standard keys High Contrast High Contrast is a feature that heightens the color contrast of some text and images on your screen As a result those items are more distinct and easier to identify Personalized keyboard Adjust keyboard settings to make your keyboard easier to use For example you can use your keyboard to control the pointer and type certain key...

Страница 60: ...ht prevent some items from fitting on the screen Customizable item size You can make the items on your screen easier to read by changing the item size To change the item size temporarily use the Magnifier tool in Ease of Access Center See Ease of Access Center on page 51 To change the item size permanently do the following Change the size of all the items on your screen 1 Right click a blank area ...

Страница 61: ... It is a good practice to clean your computer periodically to protect the surfaces and ensure trouble free operation Use only mild cleaning solutions and a damp cloth to clean the painted surfaces of the computer Dust buildup compounds problems associated with glare so remember to clean the screen periodically Wipe the screen surface gently with a soft dry cloth or blow on the screen to remove gri...

Страница 62: ...File History Follow the instructions on the screen Create a recovery medium as early as possible You can use the recovery medium to recover your operating system even if Windows fails to start up To create a recovery medium do one of the following For Windows 7 Open the Create Recovery Media program See Accessing a program on your computer on page 38 For more information about creating a recovery ...

Страница 63: ...ntrol Panel using Large icons or Small icons and then click Windows Update For Windows 10 Click Settings Update security Windows Update 3 Follow the instructions on the screen Moving your computer Before moving your computer take the following precautions 1 Back up your data on the storage drive See Good maintenance practices on page 54 2 Remove any media from the drives and turn off all connected...

Страница 64: ...56 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 65: ...e 60 Protecting data against viruses on page 60 Computrace Agent software embedded in firmware on page 61 Trusted Platform Module TPM on page 61 Locking your computer This section provides information about locking your computer with the locking devices to keep your computer safe Locking the computer cover Locking the computer cover helps prevent unauthorized people from gaining access to the insi...

Страница 66: ...Figure 8 Installing a padlock 58 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 67: ...tings in the Setup Utility program To view and change security settings in the Setup Utility program do the following 1 Start the Setup Utility program See Starting the Setup Utility program on page 63 2 Select Security 3 Follow the instructions on the right side of the screen to view and change security settings You can refer to Using the Setup Utility program on page 63 to get basic information ...

Страница 68: ... and understanding firewalls A firewall can be hardware software or a combination of both depending on the level of security required Firewalls work on a set of rules to determine which inbound and outbound connections are authorized If your computer is preinstalled with a firewall program it helps protect against computer Internet security threats unauthorized access intrusions and Internet attac...

Страница 69: ...etects if changes have been made on the computer such as hardware software or the computer call in location You might have to purchase a subscription to activate the Computrace Agent software Trusted Platform Module TPM TPM is a secure cryptoprocessor that can store cryptographic keys that protect information stored in your computer Chapter 5 Security 61 ...

Страница 70: ...62 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 71: ...ow the instructions on the right side of the screen The keys used to perform various tasks are displayed at the bottom of the screen Enabling or disabling a device This section provides information about how to enable or disable user access to hardware devices such as USB connectors or storage drives To enable or disable a device do the following 1 Start the Setup Utility program See Starting the ...

Страница 72: ... page 63 Enable the After Power Loss feature to make your computer wake up when the power supply resumes after a sudden loss of electricity 1 Start the Setup Utility program See Starting the Setup Utility program on page 63 2 Select Power After Power Loss and press Enter 3 Select Power On and press Enter 4 Exit the Setup Utility program See Exiting the Setup Utility program on page 67 Changing ICE...

Страница 73: ...y program See Exiting the Setup Utility program on page 67 To bypass the error message and log in to the operating system do one of the following Press the F2 key Note For some keyboards you might need to press Fn F2 to bypass the error message Start and then exit the Setup Utility program See Starting the Setup Utility program on page 63 and Exiting the Setup Utility program on page 67 Using the ...

Страница 74: ...trator password to change any configuration settings Hard disk password Setting a hard disk password prevents unauthorized access to the data on the storage drive When a hard disk password is set you are prompted to enter a valid password each time you try to access the storage drive Notes After you set a hard disk password your data on the storage drive is protected even if the storage drive is r...

Страница 75: ...p 4 Follow the instructions on the right side of the screen to change the startup device sequence 5 Exit the Setup Utility program See Exiting the Setup Utility program on page 67 Selecting a temporary startup device Note Not all discs and storage drives are bootable To select a temporary startup device do the following 1 Depending on the type of the storage device do one of the following If the s...

Страница 76: ...rdware device or device driver you might be informed to update the BIOS You can update the BIOS from your operating system or a flash update disc supported only on some models To update the BIOS do the following 1 Go to http www lenovo com drivers 2 Download the flash BIOS update driver for the operating system version or the ISO image version used to create a flash update disc Then download the i...

Страница 77: ... not resolve your problem continue with the next step 3 Go to Troubleshooting on page 69 and follow the instructions for the type of problem you are experiencing If these troubleshooting instructions do not resolve your problem continue with the next step 4 Run the diagnostic program See Diagnostics on page 77 If the diagnostic program does not resolve your problem continue with the next step 5 Re...

Страница 78: ...ea See Adding an icon to the Windows notification area on page 41 Some models have a front audio panel you can use to adjust volume If you have a front audio panel ensure that the volume is not set too low Ensure that your external speakers and headphones if used are connected to the correct audio connector on the computer Most speaker cables are color coded to match the connector Note When extern...

Страница 79: ...ected to the drive Unable to use a bootable recovery medium such as the Product Recovery CD to start your computer Solution Ensure that the CD or DVD drive is in the startup sequence before the storage drive Refer to Selecting a temporary startup device on page 67 for information on viewing and changing the startup sequence Note that on some models the startup sequence is permanently set and canno...

Страница 80: ...ur SCSI documentation Storage drive problems Select your symptom from the following list Some or all storage drives missing from the Setup Utility program on page 72 No Operating System Found message or the system not starting up from the correct storage drive on page 72 Some or all storage drives missing from the Setup Utility program Symptom Some or all storage drives missing from the Setup Util...

Страница 81: ...ring Center Change adapter settings 3 Right click the Ethernet LAN adapter icon and click Enable Update or reinstall the Ethernet LAN driver See Keeping your computer current on page 54 Install all networking software that is necessary for your network environment Check with your LAN administrator for the necessary networking software Set the same duplex for the switch port and the adapter If you ...

Страница 82: ...arting the Setup Utility program on page 63 Then follow the instructions on the screen Turn on the Bluetooth radios 1 Depending on your Windows version do one of the following For Windows 7 Click the Start button to open the Start menu Right click Computer and then click Properties For Windows 10 Right click the Start button to open the Start context menu 2 Click Device Manager Type the administra...

Страница 83: ...s PC 4 Right click your C drive and then click Properties 5 Click the Tools tab 6 Depending on your Windows version do one of the following For Windows 7 Click Defragment now For Windows 10 Click Optimize Select the desired drive and then click Optimize 7 Follow the instructions on the screen Insufficient free storage drive space Solutions Free up storage drive space Clean out your Inbox Sent Item...

Страница 84: ...with the serial device for more information If you added one serial connector adapter install the adapter correctly USB device problems This section provides solutions to USB device related problems My USB device cannot be accessed Solutions Connect the USB cable from the USB connector to the USB device If the USB device has its own power cord connect the power cord to a grounded electrical outlet...

Страница 85: ... to http www lenovo com diags for the diagnostics information for your computer The diagnostic program is used to test hardware components of your computer The diagnostic program also can report operating system controlled settings that interfere with the correct operation of your computer Lenovo Solution Center The Lenovo Solution Center program is the diagnostic program preinstalled on your comp...

Страница 86: ... recovery environment might start automatically Follow the instructions on the screen to choose the appropriate recovery solution Turn on or restart your computer Then repeatedly press and release the F8 key until the Advanced Boot Options window opens Select Repair Your Computer press Enter and follow the instructions on the screen to choose the appropriate recovery solution Note For some keyboar...

Страница 87: ...ttings 1 Click the Start button to open the Start menu 2 Click Settings Update security Recovery 3 Choose the appropriate recovery solution by following the instructions on the screen Use System Restore to restore system files and settings to an earlier point 1 Right click the Start button to open the Start context menu 2 Click Control Panel View Control Panel using Large icons or Small icons and ...

Страница 88: ... your computer comes with the recovery USB key follow the instructions shipped with the USB key If your computer does not come with the recovery USB key contact the Lenovo Customer Support Center to order a recovery USB key See Calling for service on page 138 80 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 89: ...ion 4 Power on all external devices 5 Power on the computer Look for displayed error codes Listen for beep codes Look for readable instructions or a main menu on the display If you did not receive the correct response go to step 6 If you do receive the correct response go to step 7 6 Look at the following conditions and follow the instructions If you hear beep codes during POST go to Beep symptoms...

Страница 90: ...ists error symptoms and possible causes The most likely cause is listed first Always begin with Service checkout on page 81 This index can also be used to help you decide which FRUs to have available when servicing a computer If you are unable to correct the problem using this index go to Undetermined problems on page 86 Notes The Symptom to FRU index is not specific to any machine type and are ap...

Страница 91: ...ymptoms are tones or a series of tones separated by pauses intervals without sound during POST The following table describes the beep symptoms Beep symptom FRU Action 2 short beeps CMOS setting error Common error code see the detail failure information in POST error codes on page 83 3 short and 1 long beeps DRAM memory error Perform the following actions in order 1 Make sure the memory module s ar...

Страница 92: ...eader are attached Power off and remove all but the reader that you set up within your main operating system If more than one external fingerprint reader are connected to a computer this error message will be displayed Remove all of the fingerprint keyboards except the one compatible with the fingerprint application on your computer 1962 No operating system found Press any key to repeat boot seque...

Страница 93: ...stem Board 2 Primary Hard Disk Drive 3 Hard Disk Drive Cable Incorrect memory size during POST 1 Run the Memory tests 2 Memory Module 3 System Board Insert a Diskette icon appears with a known good diagnostics diskette in the first 3 5 inch diskette drive 1 System Board 2 Diskette Drive Cable 3 Network Adapter Intensity or color varies from left to right of characters and color bars 1 Display 2 Vi...

Страница 94: ...allel connector device failure adapter connector 1 External Device Self Test OK 2 External Device 3 Cable 4 Alternate Adapter 5 System Board Some or all keys on the keyboard do not work 1 Keyboard 2 Keyboard Cable 3 System Board Undetermined problems This section provides instructions on how to find out the failing devices or adapters 1 Power off the computer 2 Remove or disconnect the following c...

Страница 95: ...puter without setting the part down When this is not possible place the static protective package that the part came in on a smooth level surface and place the part on the package Do not place the part on the computer cover or other metal surface Installing or replacing hardware This section provides instructions on how to install or replace hardware for your computer You can expand the capabiliti...

Страница 96: ...e 1 To replace the ac power adapter 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 If the ac power adapter bracket is available remove the ac power adapter bracket See Replacing the ac power adapter bracket on page 106 3 Disc...

Страница 97: ...page 106 Replacing the vertical stand Attention Do not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 Notes The vertical stand comes in two sizes a smaller size for computers with no external box and a larger size for computers with an external optical drive box installed Refer to the figure that matche...

Страница 98: ...VESA mount bracket on page 91 To replace the vertical stand 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 Lift the computer to remove it from the vertical stand Figure 12 Removing the computer from the vertical stand 90 Thin...

Страница 99: ...information on page 1 Note If your computer comes with a VESA mount bracket do not install a dust shield To replace the VESA mount bracket 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 If the ac power adapter bracket is avai...

Страница 100: ...omputer Figure 14 Removing the VESA mount bracket screws 4 Slide the computer from the front of the VESA mount bracket to remove the VESA mount bracket from the computer Figure 15 Removing the VESA mount bracket 92 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 101: ...er adapter bracket on page 106 Replacing the external optical drive Attention Do not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the external optical 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...

Страница 102: ...d the computer 3 Remove the screw that secures the external optical drive box on the VESA mount bracket and then slide the external optical drive box as shown to remove it from the VESA mount bracket Figure 18 Removing the external optical drive box 94 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 103: ...ternal optical drive from the external optical drive box Figure 19 Removing the external optical drive from the external optical drive box 5 Remove the two screws that secure the external optical drive metal plate and then remove the metal plate from the external optical drive Figure 20 Removing the external optical drive metal plate Chapter 9 Installing or replacing hardware 95 ...

Страница 104: ... to secure the metal plate on the new external optical drive Figure 21 Installing the external optical drive metal plate 7 Slide the new external optical drive into the external optical drive box until it snaps into position Figure 22 Installing the external optical drive into the external optical drive box 96 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 105: ...8 Install the screw to secure the external optical drive in the external optical drive box Figure 23 Installing the external optical drive screw Chapter 9 Installing or replacing hardware 97 ...

Страница 106: ...ve box with the two screws on the VESA mount bracket and then slide the external optical drive box as shown to install it on the VESA mount bracket Figure 24 Installing the external optical drive box 98 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 107: ...ion on page 1 Note A 90 watt ac power adapter is required to ensure that the I O box operates properly A 90 watt ac power adapter is shipped with your computer or can be ordered separately You are not recommended to use the I O box that is offered with a ThinkCentre M53 M73 M83 or M93 p computer To replace the I O box do the following 1 Remove all media from the drives and turn off all attached de...

Страница 108: ...w that secures the I O box on the VESA mount bracket and then slide the I O box as shown to remove it from the VESA mount bracket Figure 26 Removing the I O box 100 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 109: ...oles in the new I O box with the two screws on the VESA mount bracket and then slide the I O box as shown to install it on the VESA mount bracket Figure 27 Installing the I O box Chapter 9 Installing or replacing hardware 101 ...

Страница 110: ...ore reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the external battery box 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 Disconnect the external battery box cable f...

Страница 111: ...VESA mount bracket Figure 29 Removing the external battery box 4 Slide the release button on the external battery box as shown and use a screwdriver to slide the battery forward at the same time Then remove the battery from the external battery box Figure 30 Removing the battery from the external battery box Chapter 9 Installing or replacing hardware 103 ...

Страница 112: ... Slide the new battery into the external battery box until it snaps into position Figure 31 Installing the battery into the external battery box 104 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 113: ...al battery box with the two screws on the VESA mount bracket and then slide the external battery box as shown to install it on the VESA mount bracket Figure 32 Installing the external battery box Chapter 9 Installing or replacing hardware 105 ...

Страница 114: ...before reading and understanding the Chapter 1 Read this first Important safety information on page 1 Note The ac power adapter bracket is installed on the Video Electronics Standards Association VESA mount bracket To replace the ac power adapter bracket 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 elect...

Страница 115: ...r bracket 4 Slide the ac power adapter into the new ac power adapter bracket Ensure that the ac power adapter is secured by the bracket 5 Align the two tabs on the ac power adapter bracket with the slots in the VESA mount bracket Then slide the ac power adapter bracket as shown to install it on the VESA mount bracket Figure 35 Installing the ac power adapter bracket Chapter 9 Installing or replaci...

Страница 116: ...y media from the drives and turn off all connected devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer 2 Hold the sides of your computer and gently lay it down so that the computer cover is facing up 3 Unlock any locking device that secures the computer cover 4 If your computer is installed with a dust shield...

Страница 117: ...5 Remove the screw that secures the computer cover Figure 37 Removing the computer cover screw Chapter 9 Installing or replacing hardware 109 ...

Страница 118: ...repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the system fan do the following 1 Remove any media from the drives and turn off all connected 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...

Страница 119: ... three screws that secure the system fan and then remove the system fan as shown Figure 40 Removing the system fan 5 Position the new system fan as shown and align the three screw holes in the system fan with the corresponding screw holes in the heat sink Figure 41 Installing the system fan Chapter 9 Installing or replacing hardware 111 ...

Страница 120: ... not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the internal speaker do the following 1 Remove any media from the drives and turn off all connected devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to the computer...

Страница 121: ...of the internal speaker holder Figure 43 Removing the internal speaker 5 Insert the new internal speaker into the internal speaker holder until the new internal speaker snaps into position and is secured by the two tabs Figure 44 Installing the internal speaker Chapter 9 Installing or replacing hardware 113 ...

Страница 122: ...t on page 133 Replacing the internal speaker holder Attention Do not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the internal speaker holder do the following 1 Remove any media from the drives and turn off all connected devices and the computer Then disconnect all power cords from electric...

Страница 123: ...er until it snaps into position Figure 47 Installing the internal speaker holder 6 Install the internal speaker See Replacing the internal speaker on page 112 7 Connect the cable of the new internal speaker to the internal speaker connector on the system board See Parts on the system board on page 34 What to do next To work with another piece of hardware go to the appropriate section To complete t...

Страница 124: ... system fan See Replacing the system fan on page 110 4 Remove the internal speaker See Replacing the internal speaker on page 112 5 Remove the internal speaker holder See Replacing the internal speaker holder on page 114 6 Loosen the four screws that secure the heat sink to the system board in the following sequence and then lift out the heat sink to remove it from the system board a Partially rem...

Страница 125: ...o the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 133 Replacing the microprocessor Attention Do not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 CAUTION The heat sink and microprocessor might be very hot Before you open the computer co...

Страница 126: ...or 9 Lift the microprocessor straight up and out of the microprocessor socket Notes Your microprocessor and socket might look different from the one illustrated Touch only the edges of the microprocessor Do not touch the gold contacts on the bottom Do not drop anything onto the microprocessor socket while it is exposed The socket pins must be kept as clean as possible Figure 51 Removing the microp...

Страница 127: ... in the socket 14 Install the heat sink See Replacing the heat sink on page 116 15 Install the internal speaker holder See Replacing the internal speaker holder on page 114 16 Install the internal speaker See Replacing the internal speaker on page 112 17 Install the system fan See Replacing the system fan on page 110 18 Reconnect all cables that were disconnected from the system board What to do n...

Страница 128: ... 3 If your computer is installed with a front Wi Fi antenna disconnect the front Wi Fi antenna cable from the Wi Fi card 4 Remove the screw that secures the storage drive bracket Slide the storage drive bracket as shown and then lift the storage drive bracket to remove it from the computer Figure 53 Removing the storage drive bracket 5 Slide the 2 5 inch storage drive as shown and then lift the 2 ...

Страница 129: ...ition the storage drive bracket on the system board so that the three slots on the storage drive bracket align with the corresponding standoffs on the system board Slide the storage drive bracket as shown until the screw hole in the storage drive bracket aligns with the corresponding mounting stud on the system board and the 2 5 inch storage drive is installed on the SATA 3 0 connector on the syst...

Страница 130: ... drive when reading this section If your computer comes with the smaller M 2 storage drive you will not be able to replace it with a larger M 2 storage drive To replace the M 2 storage drive do the following 1 Remove any media from the drives and turn off all connected devices and the computer Then disconnect all power cords from electrical outlets and disconnect all cables that are connected to t...

Страница 131: ...Plug the plastic fastener to secure the M 2 storage drive to the system board Figure 61 Installing the M 2 storage drive screw 9 Install the storage drive bracket See Replacing the 2 5 inch storage drive on page 120 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 133 Repl...

Страница 132: ... system board on page 34 5 Open the retaining clips and gently pull the memory module out of the memory slot Figure 62 Removing the memory module 6 Insert the notched end 2 of the new memory module into the slot 1 Press the memory module firmly and pivot the memory module until it snaps into place Make sure that the memory module is secured in the slot and does not move easily Figure 63 Installing...

Страница 133: ...de for information about replacing and disposing of the coin cell battery To replace the coin cell battery do the following 1 Remove any media from the drives and turn off all connected 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 108 ...

Страница 134: ...cations of Wi Fi antenna connectors might vary To replace the Wi Fi card do the following 1 Remove any media from the drives and turn off all connected 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 108 3 Remove the storage drive bracket...

Страница 135: ...iece of hardware go to the appropriate section To complete the installation or replacement go to Completing the parts replacement on page 133 Replacing the Wi Fi antennas Attention Do not open your computer or attempt any repair before reading and understanding the Chapter 1 Read this first Important safety information on page 1 To replace the Wi Fi antennas refer to the following topics Replacing...

Страница 136: ...Fi card 4 Unstick the front Wi Fi antenna from the hard disk drive bracket Figure 70 Removing the front Wi Fi antenna 5 Peel off the paper that protects the stickers on bottom of the new front Wi Fi antenna Figure 71 Peeling off the paper that protects the sticker 128 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 137: ...ure 72 Sticking the front Wi Fi antenna 7 Route the front Wi Fi antenna cable as shown and then connect it to the Wi Fi card Figure 73 Installing the front Wi Fi antenna cable 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 133 Chapter 9 Installing or replacing hardware 1...

Страница 138: ...Wi Fi antenna so that it can be more easily twisted 3 Hold the thicker end of the rear Wi Fi antenna and unscrew the Wi Fi antenna from the rear of the computer Figure 74 Removing the rear Wi Fi antenna 4 Screw the new rear Wi Fi antenna to the rear Wi Fi antenna cable connector attached on the rear of the computer 5 Adjust the angle of the rear antenna to lower the risk of breaking the antenna by...

Страница 139: ...ords 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 108 3 Remove the system fan See Replacing the system fan on page 110 4 Remove the internal speaker See Replacing the internal speaker on page 112 5 Remove the internal speaker holder See Replacing the internal speaker holder on page 114 6 Rem...

Страница 140: ...Parts on the system board on page 34 16 Install the Wi Fi card See Replacing the Wi Fi card on page 126 17 Install the memory modules See Replacing a memory module on page 123 18 Install the M 2 storage drive See Replacing the M 2 storage drive on page 122 19 Install the storage drive bracket See Replacing the 2 5 inch storage drive on page 120 20 Install the heat sink See Replacing the heat sink ...

Страница 141: ...e installation or replacement for all parts reinstall the computer cover and reconnect cables Depending on the parts you installed or replaced you might need to confirm the updated information in the Setup Utility program Refer to Using the Setup Utility program on page 63 To reinstall the computer cover and reconnect cables to your computer do the following 1 Ensure that all components have been ...

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Страница 143: ...dust shield align the edges of the dust shield with the edges of the computer cover Then press the dust shield inward until it snaps into position Figure 79 Installing the dust shield Note If your computer comes with a dust shield do not install a VESA mount bracket 6 Place the computer in an upright position Chapter 9 Installing or replacing hardware 135 ...

Страница 144: ...s to the corresponding connectors on the computer See Hardware locations on page 27 9 Update your configuration See Using the Setup Utility program on page 63 10 If a newly installed hardware component does not work normally update the device driver See Keeping your computer current on page 54 136 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 145: ...arranty The Safety Warranty and Setup Guide provided with your computer contains important safety information product warranty terms initial setup procedure and legal notices Ensure that you read and understand all safety information in the Safety Warranty and Setup Guide before using your computer In addition read and understand Chapter 1 Read this first Important safety information on page 1 bef...

Страница 146: ... country or region is not provided contact your Lenovo reseller or Lenovo marketing representative The following services are available during the warranty period Problem determination Trained service personnel are available to assist you with determining a hardware problem and deciding what action is necessary to fix the problem Hardware repair If the problem is caused by hardware under warranty ...

Страница 147: ...dels of a particular machine type In some countries fees and restrictions might apply at the time of service To determine whether your computer is eligible for International Warranty Service and to view a list of the countries or regions where service is available go to http www lenovo com support For technical assistance with the installation of or questions related to Service Packs for your prei...

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Страница 149: ...s cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures Reorient or relocate the receiving antenna Increase the separation between the equipment and receiver Connect the equipment into an outlet on a circuit different from that to whic...

Страница 150: ...allieren und zu betreiben Des Weiteren dürfen auch nur von der Lenovo empfohlene Kabel angeschlossen werden Lenovo übernimmt keine Verantwortung für die Einhaltung der Schutzanforderungen wenn das Produkt ohne Zustimmung der Lenovo verändert bzw wenn Erweiterungskomponenten von Fremdherstellern ohne Empfehlung der Lenovo gesteckt eingebaut werden Deutschland Einhaltung des Gesetzes über die elektr...

Страница 151: ...ation Advertencia En Mexico la operación de este equipo estásujeta a las siguientes dos condiciones 1 es posible que este equipo o dispositivo no cause interferencia perjudicial y 2 este equipo o dispositivo debe aceptar cualquier interferencia incluyendo la que pueda causar su operación no deseada Additional regulatory information For additional regulatory information refer to the Regulatory Noti...

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Страница 153: ...e the collection framework available to them for the return recycle and recovery of WEEE and to minimize any potential effects of EEE on the environment and human health due to the presence of hazardous substances For additional WEEE information go to http www lenovo com recycling Recycling information for Japan Collecting and recycling a disused Lenovo computer or monitor If you are a company emp...

Страница 154: ...osal of a lithium battery must comply with local ordinances and regulations Recycling information for Brazil Declarações de Reciclagem no Brasil Descarte de um Produto Lenovo Fora de Uso Equipamentos elétricos e eletrônicos não devem ser descartados em lixo comum mas enviados à pontos de coleta autorizados pelo fabricante do produto para que sejam encaminhados e processados por empresas especializ...

Страница 155: ...o indicate that they are to be collected separately and recycled at end of life The label on the battery may also include a chemical symbol for the metal concerned in the battery Pb for lead Hg for mercury and Cd for cadmium Users of batteries and accumulators must not dispose of batteries and accumulators as unsorted municipal waste but use the collection framework available to customers for the ...

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Страница 157: ...ction of the use of certain hazardous substances in electrical and electronic equipment RoHS recast or RoHS 2 For more information about Lenovo worldwide compliance on RoHS go to http www lenovo com social_responsibility us en RoHS_Communication pdf China RoHS Turkish RoHS The Lenovo product meets the requirements of the Republic of Turkey Directive on the Restriction of the Use of Certain Hazardo...

Страница 158: ...Ukraine RoHS India RoHS RoHS compliant as per E Waste Management Handling Rules 2011 150 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

Страница 159: ...Appendix D China Energy Label Copyright Lenovo 2015 2016 151 ...

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Страница 161: ...nt and the reduction of greenhouse gas emissions For more information about ENERGY STAR go to http www energystar gov Lenovo encourages you to make efficient use of energy an integral part of your day to day operations To help in this endeavor set the following power management features to take effect when your computer has been inactive for a specified duration Table 1 ENERGY STAR power managemen...

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Страница 163: ...ublication Lenovo may make improvements and or changes in the product s and or the program s described in this publication at any time without notice The products described in this document are not intended for use in implantation or other life support applications where malfunction may result in injury or death to persons The information contained in this document does not affect or change Lenovo...

Страница 164: ...e Microsoft Windows and Windows Media are trademarks of the Microsoft group of companies Intel is a trademark of Intel Corporation in the U S and or other countries DisplayPort and VESA are trademarks of the Video Electronics Standards Association Other company product or service names may be trademarks or service marks of others 156 ThinkCentre M700 and M900 Hardware Maintenance Manual ...

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