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ThinkCentre User Guide
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2756D7U
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Troubleshooting
Specs
Install
FAQ
Password
Wireless LAN problem
Maintenance
Solving recovery problems
Accessibility and comfort
Connector Description
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ThinkCentre User Guide
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Contents
ThinkCentre User Guide
Third Edition May Copyright Lenovo
Contents
Recovery information
Appendix A. Notices 131
Iv ThinkCentre User Guide
Service and upgrades
Important safety information
Static electricity prevention
Power cords and power adapters
Extension cords and related devices
External devices
Plugs and outlets
Heat and product ventilation
Modem safety information
Operating environment
Cleaning and maintenance
Power supply statement
Laser compliance statement
ThinkCentre User Guide
Features
Product overview
System management features
Security features
Input/Output I/O features
Power supply
Expansion
Preinstalled software programs
Preinstalled operating system
Software overview
Specifications
Software provided by Lenovo
Lenovo Welcome
Product Recovery
Lenovo ThinkVantage Tools
Fingerprint Software
ThinkVantage Rescue and Recovery
ThinkVantage Password Manager
ThinkVantage Power Manager
ThinkVantage System Update
Locations
Lenovo Solution Center
Adobe Reader Antivirus software
View Manager
Front connector, control, and indicator locations
Locating connectors on the rear of your computer
Connector Description
That use a DisplayPort connector
Locating components
Locating parts on the system board
System board part locations
System board part locations
Locating internal drives
Drive bay locations
Machine type and model label
Machine type and model label
Using the keyboard
Using your computer
Frequently asked questions
Using Windows shortcut keys
Using the wheel mouse
Using the blue ThinkVantage button
Using a fingerprint reader
Adjusting audio
Using CDs and DVDs
Setting the volume from the desktop
Setting the volume from Control Panel
Adding the volume icon to the taskbar
Playing a CD or DVD
Handling and storing CD and DVD media
Recording a CD or DVD
Using your computer
ThinkCentre User Guide
Arranging your workspace
Accessibility and comfort
You and your computer
Comfort
Air circulation
Glare and lighting
Electrical outlets and cable lengths
Registering your computer
Voltage-selection switch
Moving your computer to another country or region
Replacement power cords
Security features
Security
Installing a padlock
Locking the computer cover
Installing a cable lock
Attaching a cable lock
Bios passwords
Using passwords
Attaching an integrated cable lock
Using and understanding firewalls
Windows passwords
Configuring the fingerprint reader
Protecting data against viruses
ThinkCentre User Guide
Installing external options
Installing or replacing hardware
Installing or replacing hardware
Handling static-sensitive devices
Removing the computer cover
Removing the computer cover
Installing or replacing a PCI card
Removing and reinstalling the front bezel
What to do next
Opening the PCI card latch
Removing a PCI card
Installing or replacing a memory module
Installing a PCI card
Udimm Dimm
Installing or replacing the optical drive
Opening the retaining clips
Removing the optical drive
Installing or replacing the card reader
Installing the optical drive
Installing the card reader
Removing the card reader retainer
Installing the card reader
Replacing the card reader
Removing the card reader
Replacing the battery
Replacing the power supply assembly
Removing the old battery
ThinkCentre User Guide
Replacing the heat sink and fan assembly
Removing the screws for the power supply assembly
Removing the heat sink and fan assembly
Replacing the microprocessor
Accessing the microprocessor
Installing the microprocessor
Installing the solid state drive
Installing the solid state drive into the storage converter
Installing or replacing the mSATA solid state drive
Installing the mSATA solid state drive
ThinkCentre User Guide
Installing the mSATA solid state drive
Replacing the mSATA solid state drive
Removing the mSATA solid state drive storage converter
Removing the mSATA solid state drive
What to do next
Replacing the primary hard disk drive
Removing the primary hard disk drive
Installing the hard disk drive into the bracket
Replacing the secondary hard disk drive
Removing the secondary hard disk drive
Installing the secondary hard disk drive
Replacing the front fan assembly
Removing the front fan assembly
Replacing the rear fan assembly
Installing the front fan assembly
Removing the rear fan assembly
Replacing the front audio and USB assembly
Installing the rear fan assembly
Replacing the internal speaker
Removing the old internal speaker
Installing a new internal speaker
Replacing the thermal sensor
Pull the entire thermal sensor out of the chassis
Replacing the cover presence switch
Installing the new thermal sensor
Removing the cover presence switch
Replacing the WiFi units
Removing the WiFi adapter card
Disconnecting the Bluetooth cable
Opening the PCI card latch
Removing the WiFi card module
Removing the WiFi adapter card
Installing the WiFi units
Removing the screws that secure the WiFi card module
Installing the WiFi card module
Installing the WiFi antenna cables
Installing the rear WiFi antenna
Installing or removing the rear WiFi antenna
Removing the rear WiFi antenna
Installing or removing the front WiFi antenna
Installing the front WiFi antenna
Connect the front antenna cable to the WiFi card module
Removing the front WiFi antenna
Replacing the keyboard or mouse
Completing the parts replacement
Connecting the USB keyboard or mouse
Reinstalling the computer cover
Obtaining device drivers
ThinkCentre User Guide
Creating and using recovery media
Recovery information
Creating recovery media
Performing backup and recovery operations
Using recovery media
Performing a backup operation
Using the Rescue and Recovery workspace
Performing a recovery operation
Click the Restore your system from a backup icon
Using a rescue medium
Creating and using a rescue medium
Creating a rescue medium
Reinstalling preinstalled applications
Reinstalling preinstalled applications and device drivers
Reinstalling preinstalled device drivers
Reinstalling device drivers
Reinstalling software programs
Solving recovery problems
Recovery information
ThinkCentre User Guide
Starting the Setup Utility program
Using the Setup Utility program
Viewing and changing settings
Administrator Password
Password considerations
Power-On Password
Hard Disk Password
Erasing lost or forgotten passwords clearing Cmos
Enabling or disabling a device
Selecting a temporary startup device
Enabling ErP compliance mode
Selecting a startup device
Selecting or changing the startup device sequence
Disabled
ICE performance mode
ICE thermal alert
Exiting the Setup Utility program
Updating system programs
Using system programs
Updating flashing the Bios from a disc
103
Recovering from a POST/BIOS update failure
Updating flashing the Bios from your operating system
Click Download Drivers & Software Click Use Quick Path
Getting the latest device drivers for your computer
Preventing problems
Keeping your computer current
Updating your operating system
Using System Update
Basics
Keyboard
Cleaning your computer
Computer
Optical mouse
Cleaning a glass-screen surface
Good maintenance practices
Moving your computer
Basic troubleshooting
Troubleshooting and diagnostics
109
Troubleshooting procedure
Troubleshooting
Audio problems
No audio in Windows
Sound comes from one external speaker only
CD problems
No audio in DOS applications or games
CD or DVD does not work
DVD problems
Black screen instead of DVD video
Playback is very slow or choppy
DVD movie will not play
No audio or intermittent audio while playing DVD movie
Invalid disc or no disc found message
All or some keys on the keyboard do not work
Intermittent problems
Keyboard, mouse, or pointing device problems
Mouse or pointing device does not work
Pointer on the screen does not move smoothly with the mouse
Monitor problems
Wireless keyboard does not work
Fingerprint reader does not work
Wrong characters appear on the screen
Image appears to be flickering
Image is discolored
Networking problems
Ethernet problems
Your computer cannot connect to the network
Click Start Control Panel Click Hardware and Sound
Wake on LAN feature is not working
Adapter stops working for no apparent reason
Bluetooth problems
Wireless LAN problem
Wireless WAN problem
Sound does not come from the Bluetooth headphone
An option that was just installed does not work
Option problems
An option that previously worked does not work now
Insufficient free hard disk drive space
Performance and lockup problems
Excessive number of fragmented files
Insufficient memory
Printer problems
Serial port problems
Click Defragment Now, then click Continue
Software problems
Software does not work as expected
USB problems
Lenovo Solution Center
ThinkCentre User Guide
Getting information, help, and service
Calling for service
Help and service
Using the documentation and diagnostic program
Lenovo Support Web site
Using other services
Purchasing additional services
ThinkCentre User Guide
Appendix A. Notices
131
Trademarks
Electronic emissions notices
Appendix B. Regulatory information
Export classification notice
Federal Communications Commission Declaration of Conformity
ThinkCentre User Guide
Additional regulatory information
ThinkCentre User Guide
Recycling information
Appendix C. Weee and recycling information
Important information for the European Directive 2002/96/EC
137
Battery recycling information for Taiwan
Recycling information for Brazil
Battery recycling information for the European Union
ThinkCentre User Guide
Appendix D. Ek Bilgiler
141
ThinkCentre User Guide
Garanti Hizmetinin Alınabileceği Merkezler
Appendix E. Servis istasyonlari
143
Antalya
Erzİncan
Iğdir
İzmİr
Muğla
Şanliurfa
ThinkCentre User Guide
Index
151
Rescue and Recovery workspace
153
ThinkCentre User Guide
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