Lenovo B71 80 Laptop User Guide

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Appendix A. CRU instructions
Customer Replaceable Units (CRUs) are parts that can be upgraded or 
replaced by the customer. If a CRU is determined to be defective during the 
warranty period, a replacement CRU will be provided to the customer. 
Customers are responsible for installing the self-service CRUs for this 
product. Customers also can install optional-service CRUs, which might 
require some technical skills or tools, or request that a technician install the 
optional-service CRU under the terms of the applicable warranty service 
type for your country or region.
CAUTION:
Set the built-in battery in Ship Mode before replacing a CRU or sending your 
computer for service.
1Turn off the computer and disconnect the AC power adapter.
2Press Fn + S + V.
3Press the Power button to verify if Ship Mode has been set.
Note:The illustrations in this manual might differ from the actual product. Please refer to 
the actual product.
Note:When set in Ship Mode, the battery does not supply power to the computer. To awake 
the battery from Ship Mode, connect the AC power adapter to your computer. 
						

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Replacing the hard disk drive - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
You can increase the storage capacity of your computer by replacing the hard 
disk drive with one of greater capacity. You can purchase a new hard disk 
drive from your reseller or Lenovo marketing representative.
The hard disk drive is very sensitive. Incorrect handling can cause damage 
and permanent loss of data on the hard disk. Before removing the hard disk 
drive, make a backup copy of all the information on the hard disk, and then 
turn the computer off. Never remove the hard disk drive while the system is 
operating or in sleep mode.
Notes:•Replace the hard disk drive only for upgrading or repair. The connectors and bay of the 
hard disk drive were not designed for frequent changes or drive swapping.
•The preinstalled software are not included on an optional hard disk drive.
•Make sure the computer is turned off and all the cables disconnected from the computer 
before you replace the hard disk drive.
•Make sure the computer display is closed to avoid being damaged.
Handling a hard disk drive
 Do not drop the drive or subject it to physical shock. Put the drive on a 
material, such as soft cloth, that absorbs any physical shock.
 Do not apply pressure to the cover of the drive.
 Do not touch the connector of the drive. 
						

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To replace the hard disk drive, do the following:
1Remove the screws  a, and then remove the bottom slot cover  b.
2 Remove the frame fixing screws  c.
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3Detach the hard disk drive connector shown by arrows  d and  e.
4  Take out the hard disk drive secured in a metal frame  6.
5 Remove the screws and detach the metal frame from the hard disk drive.
6 Attach the metal frame to a new hard  disk drive and tighten the screws.
7Reconnect the hard disk drive connector. Slide the new hard disk drive firmly 
into place, and then reinstall the frame fixing screws to secure the drive.
8Reinstall the bottom slot cover and tighten the screws. 
						

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Replacing the memory  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
You can increase the amount of memory in your computer by installing 
double data rate three synchronous dynamic random access memory 
(DDR3L SDRAM)-available as an option-in the memory slot of your 
computer. DDR3L SDRAM modules are available in various capacities.
To install a DDR3L SDRAM module, do the following:
1Touch a metal table or a grounded metal object to reduce any static 
electricity in your body, which could damage the DDR3L SDRAM. Do 
not touch the contact edge of the DDR3L SDRAM module.
2Remove the screws a, and then remove the bottom slot cover b.
Notes:•Use only the memory types supported by your computer. If you incorrectly install 
optional memory, or install an unsupported memory type, a warning beep will sound 
when you try to start the computer.
•Make sure the computer is turned off and all the cables disconnected from the computer 
before you replace the memory.
•Make sure the computer display is closed to avoid being damaged.
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3If two DDR3L SDRAM modules are already installed in the memory slot, 
remove one of them to make room for the new one by pulling out on the 
latches on both edges of the socket at the same time. Be sure to save the 
old DDR3L SDRAM for future use.
4Align the notch of the DDR3L SDRAM module with the protrusion of the 
socket and gently insert the new module at a 30-45° angle.
5Push the DDR3L SDRAM module down until the latches on both sides of 
the socket lock into its position.
6After aligning the attachment clips with their matching gaps, reinstall the 
bottom slot cover.
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To make sure that the DDR3L SDRAM module is installed correctly, do as 
follows:
1Press the Novo button to open the Novo button menu.
2Select the BIOS Setup. The System Memory item shows the total amount 
of memory installed in your computer. 
						

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Replacing the keyboard  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To replace the keyboard, do the following:
1Remove the screws a.
2Turn the computer over and open the display panel.
Notes:•Make sure the computer is turned off and all the cables disconnected from the computer 
before you replace the keyboard.
•Make sure the computer display is closed to avoid being damaged.
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3Pull to unsnap the keyboard in the direction as shown by the arrows b 
c.
4Lift up the keyboard d and detach the connector in the direction shown 
by the arrows e f.
5Reinstall the new keyboard and tighten the screws.
2
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Replacing the optical drive  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To replace the optical drive, do the following:
1Remove the keyboard. For details, see “Replacing the keyboard” on page 
34.
2Remove the screw shown in the illustration a. Gently pull the optical 
drive out from its cavity b.
3Insert a new optical drive and tighten the screw to secure the drive.
Notes:•Make sure the computer is turned off and all the cables disconnected from the computer 
before you replace the optical drive.
•Make sure the computer display is closed to avoid being damaged.
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