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Lenovo G450 Lenovo G450/G550 User Guide V1.0 - Page 43

Removing the optical drive, Total Memory

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Chapter 6. Upgrading and replacing devices Note: If only one DIMM is used on the computer you are servicing, the card must be installed in SLOT-0 ( a : lower slot), but not in SLOT-1 ( b : upper slot). b a To make sure that the SO-DIMM is installed correctly, do as follows: 1 Turn the computer on. 2 Hold F2 during startup. The BIOS Setup Utility screen opens. The Total Memory item shows the total amount of memory installed in your computer. Removing the optical drive To remove the optical drive, do the following: 1 Remove the Memory/Wireless module/CPU (central processing unit) compartment cover. 2 Remove the screw shown in the figure a. 3 Gently pull the optical drive out b. a b 35

Section	Page
Important safety information	6
Important safety information	6
Chapter 1. Getting to know your computer	9
Top view	9
Left-side view	12
Right-side view	13
Front view	14
Bottom view	15
Chapter 2. Learning the basics	17
First use	17
Using AC adapter and battery	19
Using the touchpad	20
Using the keyboard	21
Special keys and buttons	23
System status indicators	24
Securing your computer	25
Connecting external devices	26
Chapter 3. Using the computer network	29
Wired connection	29
Wireless connection	30
Chapter 4. OneKey rescue system	31
OneKey Rescue System	31
Chapter 5. Troubleshooting	32
Frequently asked questions	32
Troubleshooting	34
Chapter 6. Upgrading and replacing devices	38
Replacing the battery	38
Replacing the hard disk drive	39
Replacing memory	41
Removing the optical drive	43
Appendix A. Getting help and service	45
Getting help on the Web	45
Calling the customer support center	45
Getting help around the world	46
Lenovo warranty service telephone numbers	47
Appendix B. Use, and care information	48
Caring your computer	48
Accessibility and comfort	51
Maintenance	52
Appendix C. Lenovo limited warranty	54
Warranty information	58
Appendix D. Customer replaceable units (CRUs)	61
Appendix E. Notices	62
Notices	62
ENERGY STAR model information	64
Wireless related information	65
Electronic emissions notices	67
WEEE and recycling statements	70
Turkey EEE declaration of conformity	70
EU WEEE statements	70
Japan recycling statements	71
Notice for users in the U.S.A.	72
Notice on deleting data from your hard disk	72
Appendix F. Lenovo regulatory notice	73
Lenovo regulatory notice	73
Appendix G. Features and specifications	104
Trademarks	105

Match case Limit results 1 per page

Chapter 6. Upgrading and replacing devices

To make sure that the SO-DIMM is installed correctly, do as follows:

Turn the computer on.

Hold F2 during startup. The BIOS Setup Utility screen opens. The

Total Memory

item

shows the total amount of memory installed in your computer.

Removing the optical drive

- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -

To remove the optical drive, do the following:

Remove the Memory/Wireless module/CPU (central processing unit) compartment cover.

Remove the screw shown in the figure

Gently pull the optical drive out

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).