Lenovo B450 Laptop User Guide

							Appendix A. Getting help and service
57
If possible, be near your computer when you make your call in case the 
technical assistance representative needs to help you resolve a computer 
problem. Please ensure that you have downloaded the most current drivers 
and system updates, and recorded information before you call. When 
calling for technical assistance, please have the following information 
available:
 Machine Type and Model
 Serial number of your computer and your proof of purchase
 Description of the problem
 Hardware and software configuration information for your system
Note:For the latest list of customer support center telephone numbers and hours of 
operation, visit the Support Web site at http://consumersupport.lenovo.com. 
If the number for your country or region is not listed, contact your Lenovo 
reseller or Lenovo marketing representative. 
						

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Appendix A. Getting help and service
Getting help around the world  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
If you travel with your computer or relocate it to a country where your 
Lenovo machine type is sold, your computer might be eligible for 
International Warranty Service, which automatically entitles you to obtain 
warranty service throughout the warranty period. Service will be 
performed by service providers authorized to perform warranty service.
Service methods and procedures vary by country, and some services might 
not be available in all countries. Service centers in certain countries might 
not be able to service all models 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 where service is available, go to 
http://consumersupport.lenovo.com
.
Lenovo warranty service telephone numbers - - - - - - - - - - - - - 
Warranty Service Telephone Numbers
A list of warranty service telephone numbers is available at 
www.lenovo.com/support/phone. For the latest warranty service number 
in a country or region, please contact Lenovo, or your reseller in your 
country or region. 
						

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Appendix B. Use and care information
Caring for your computer  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Though your computer is designed to function reliably in normal work 
environments, you need to use common sense in handling it. By following 
these important tips, you will get the most use and enjoyment out of your 
computer.
„Be careful about where and how you work
 Do not eat or smoke over your keyboard. Particles that fall into your 
keyboard can cause damage.
 Store packing materials safely out of the reach of children to prevent the 
risk of suffocation from plastic bags.
 Keep your computer away from magnets, activated cellular phones, 
electrical appliances, or speakers (within 13 cm or 5 in).
 Avoid subjecting your computer to extreme temperatures (below 5°C/
41°F or above 35°C/95°F).
 Some appliances, such as certain portable desktop fans or air purifiers, 
can produce negative ions. If a computer is close to such an appliance, 
and is exposed for an extended time to air containing negative ions, it 
may become electrostatically charged. Such a charge may be discharged 
through your hands when you touch the keyboard or other parts of the 
computer, or through connectors on I/O devices connected to it. Even 
though this kind of electrostatic discharge (ESD) is the opposite of a  
						

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Appendix B. Use and care information
discharge from your body or clothing to the computer, it poses the same 
risk of a computer malfunction.
Your computer is designed and manufactured to minimize any effects of 
electrostatic charge. An electrostatic charge above a certain limit, 
however, can increase the risk of ESD. Therefore, when using the 
computer close to an appliance that can produce negative ions, give 
special attention to the following:
-  Avoid directly exposing your computer to the air from an appliance
that can produce negative ions.
-  Keep your computer and peripherals as far as possible from such an
appliance.
-  Wherever possible, ground your computer to facilitate safe 
electrostatic discharge.
„Notice of static-electricity
When you handle options or CRUs, or perform any work inside the 
computer, take the following precautions to avoid static-electricity 
damage:
-  Limit your movement. Movement can cause static electricity to build
up around you.
- Always handle components carefully. Handle adapters, memory
modules, and other circuit boards by the edges. Never touch exposed
circuitry.
-  Prevent others from touching components. 
						

							Appendix B. Use and care information
61
-  When you install a static-sensitive option or CRU, touch the static-
protective package containing the part to a metal expansion-slot cover
or other unpainted metal surface on the computer for at least two
seconds. This reduces static electricity in the package and your body.
-  Whenever possible, remove the static-sensitive part from the static-
protective packaging and install the part without setting it down.
When this is not possible, place the static-protective packaging on a
smooth, level surface and place the part on it.
-  Do not place the part on the computer cover or other metal surface.
„Be gentle with your computer
 Avoid placing any objects (including paper) between the display and the 
keyboard or under the keyboard.
 Do not drop, bump, scratch, twist, hit, vibrate, push, or place heavy 
objects on your computer, display, or external devices.
 Avoid turning the display beyond 150°.
„Carry your computer properly
 Before moving your computer, be sure to remove any media, turn off 
attached devices, and disconnect cords and cables.
 Be sure your computer is in sleep or hibernation mode, or turned off, 
before moving it. This will prevent damage to the hard disk drive and 
data loss. 
						

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Appendix B. Use and care information
 When picking up your open computer, hold it by the bottom. Do not 
pick up or hold your computer by the display.
 Use a quality carrying case that provides adequate cushion and 
protection. Do not pack your computer in a tightly packed suitcase or 
bag.
„For outdoor use
 Backup your critical data before you take your computer outdoors.
 Ensure that the battery is full.
 Be sure to turn off the power and close the LCD well.
 When you leave the computer in your car, place it on the back seat to 
avoid being insolated.
 Carry the AC adapter and power cord with the computer.
„Handle storage media and drives properly
 If your computer comes with an optical drive, do not touch the surface of 
a disc or the lens on the tray.
 Wait until you hear the CD or DVD click into the center pivot of an 
optical drive before closing the tray.
 When installing your hard disk, follow the instructions shipped with 
your hardware, and apply pressure only where needed on the device. 
						

							Appendix B. Use and care information
63 „Data safety
 Do not delete unknown files or change the name of files or directories 
that were not created by you; otherwise, your computer software might 
fail to work.
 Be aware that accessing network resources can leave your computer 
vulnerable to computer viruses, hackers, spyware, and other malicious 
activities that might damage your computer, software, or data.
 It is your responsibility to ensure that you have adequate protection in 
the form of firewalls, antivirus software, and anti-spyware software and 
keep this software up to date.
„Take care in setting passwords
 Remember your passwords. If you forget a supervisor or hard disk 
password, Lenovo authorized service providers will not reset it, and you 
might have to replace your system board or hard disk drive.
„Other important tips
 Do not put the battery pack in trash that is disposed of in landfills. When 
disposing of the battery, comply with local ordinances or regulations and 
your companys safety standards.
 Your computer might have both an Ethernet connector and a modem 
connector. If so, be sure to connect your communication cable to the 
correct one, so your connector is not damaged. 
						

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Appendix B. Use and care information
 Register your Lenovo products with Lenovo (refer to the Web page: 
http://consumersupport.lenovo.com
). This can help authorities return 
your computer to you if it is lost or stolen. Registering your computer 
also enables Lenovo to notify you about possible technical information 
and upgrades.
 Only an authorized Lenovo repair technician should disassemble and 
repair your computer.
 Do not modify or tape the latches to keep the display open or closed.
 Take care not to turn your computer over while the AC adapter is 
plugged in. This could break the adapter plug.
 Turn off your computer if you are replacing a device, or else verify that 
the device is warm- or hot-swappable.
 Before you install any of the following devices, touch a metal table or a 
grounded metal object. This action reduces any static electricity from 
your body. The static electricity could damage the device.
-  Memory Card, such as SD Card, Memory Stick, MultiMediaCard, and
Memory Stick Pro card.
- Memory module
 When transferring data to or from a Flash Media Card, such as an SD 
card, do not put your computer in sleep or hibernation mode before the 
data transfer is complete. To do so might cause damage to your data. 
						

							Appendix B. Use and care information
65
Accessibility and comfort - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
„Ergonomic information 
Working in the virtual office may mean adapting to frequent changes in 
your environment. Following some simple rules will make things easier 
and bring you the maximum benefits of your computer. Keeping in mind 
such basics as good lighting and proper seating, for example, can help you 
improve your performance and achieve greater comfort.
Note:This example shows someone in a conventional setting. Even if you work in a 
casual, less conventional setting, many of the tips in this section still apply. 
Develop good habits, and they will serve you well.
 Head and neck in upright
A suitable brightness
avoid glare or reflection
Type softly
Support the forearms
Flat on the floor Good back support 
and seat height
Parallel to the floor 
						

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Appendix B. Use and care information
„What if you are traveling? 
It may not be possible to observe the best ergonomic practices when you 
are using your computer while on the move or in a casual setting. 
Regardless of the setting, try to observe as many of the tips as possible. 
Sitting properly and using adequate lighting, for example, will help you 
maintain desirable levels of comfort and performance.
„Questions about vision? 
Your computer ’s visual display screen is designed to meet the highest 
standards and to provide you with clear, crisp images and large, bright 
displays that are easy to see, yet easy on the eyes. Of course, any 
concentrated and sustained visual activity can be tiring. If you have 
questions on eye fatigue or visual discomfort, consult a vision care 
specialist for advice.