Lenovo B450 Laptop User Guide

Chapter 6. Upgrading and replacing devices
47
9Put the hard disk drive gently into the hard disk drive bay with the tab 
facing upwards and the connectors facing each other; then push it 
firmly into space.
0Reinstall the compartment cover.
AReinstall the screws.
BReinstall the battery pack.
CTurn the computer over again. Connect the AC adapter and the cables 
to the computer again. 

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Chapter 6. Upgrading and replacing devices
Replacing memory  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
You can increase the amount of memory in your computer by replacing a
double data rate (DDR2) small outline dual inline memory module (SO-
DIMM) - available as an option - in the memory slot of your computer. SO-
DIMMs are available in various capacities.
 To install an SO-DIMM, do the following: 
1Touch a metal table or a grounded metal object to...

Chapter 6. Upgrading and replacing devices
49
5Remove the Hard disk drive/Memory compartment cover. 

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Chapter 6. Upgrading and replacing devices
6Press outwards on the latches on both edges of the socket at the same 
time, remove the SO-DIMM. Be sure to save the old SO-DIMM for 
future use.
7Insert the notched end of the DIMM into the socket.
Press the DIMM firmly, and pivot it until it snaps into place. Make sure
that it is firmly fixed in the slot and does not move easily.
8Reinstall the compartment cover.
9Reinstall the battery.
0Turn the computer over, and reconnect the AC adapter and the cables...

Chapter 6. Upgrading and replacing devices
51
To make sure that the SO-DIMM is installed correctly, do as follows: 
1Turn the computer on. 
2Hold F2 during startup. The BIOS Setup Utility screen opens. The
System Memory item shows the total amount of memory installed in
your computer. 
Note:If only one DIMM is used on the computer you are servicing, the card must be 
installed in SLOT-0 ( : lower slot), but not in SLOT-1 ( : upper slot).
ab
b
a 

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Chapter 6. Upgrading and replacing devices
Removing the optical drive  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To remove the optical drive, do the following:
1Remove the screw shown in the figure  .
2Gently pull the optical drive out  .



a
b 

Chapter 6. Upgrading and replacing devices
53
The following table provides a list of CRUs (Customer Replaceable Units) 
for your computer, and informs you of where to find replacement 
instructions.
Setup Poster User Guide
Self-service CRUs
AC adapter O
Power cord for AC 
adapterO
Battery O O
Bottom access doors O
Hard disk drive O
Memory O
Optical drive O 

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Appendix A. Getting help and service
If you need help, service, technical assistance, or just want more 
information about Lenovo computers, you will find a wide variety of 
sources available from Lenovo to assist you. This section contains 
information about where to go for additional information about Lenovo 
computers, what to do if you experience a problem with your computer, 
and whom to call for service should it be necessary.
Microsoft Service Packs are the latest software source for Windows...

Appendix A. Getting help and service
55
Getting help on the Web  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
The Lenovo Web site on the World Wide Web has up-to-date information 
about Lenovo computers and support. The address for the Lenovo home 
page is http://consumersupport.lenovo.com
.
You can find support information for your Lenovo computer at 
http://consumersupport.lenovo.com
. Research this Web site to learn how 
to solve...

56
Appendix A. Getting help and service
 Engineering change management - Occasionally, there might be changes 
that are required after a product has been sold. Lenovo or your reseller, if 
authorized by Lenovo, will make selected Engineering Changes (ECs) 
available that apply to your hardware.
The following items are not covered:
 Replacement or use of parts not manufactured for or by Lenovo or non 
warranted parts
 Identification of software problem sources
 Configuration of BIOS as part of an...