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Lenovo G455 Laptop Lenovo G455/G555 UserGuide V1.0 - Page 42

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. 1 2 34

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	28
Wired connection	28
Wireless connection	29
Chapter 4. OneKey Rescue System	30
OneKey Rescue System	30
Chapter 5. Troubleshooting	31
Frequently asked questions	31
Troubleshooting	33
Chapter 6. Upgrading and replacing devices	37
Replacing the battery	37
Replacing the hard disk drive	38
Replacing memory	40
Removing the optical drive	42
Appendix A. Getting help and service	44
Getting help on the Web	44
Calling the customer support center	44
Getting help around the world	45
Lenovo warranty service telephone numbers	46
Appendix B. Use and care information	47
Caring your computer	47
Accessibility and comfort	50
Maintenance	51
Appendix C. Lenovo limited warranty	53
Warranty information	57
Appendix D. Customer replaceable units (CRUs)	60
Appendix E. Notices	61
Notices	61
ENERGY STAR model information	63
Wireless related information	64
Electronic emissions notices	66
WEEE and recycling statements	69
Turkish statement of compliance	69
EU WEEE statements	70
Japan recycling statements	70
Notice for users in the U.S.A.	71
Notice on deleting data from your hard disk	71
Appendix F. Lenovo regulatory notice	72
Lenovo regulatory notice	72
Appendix G. Features and specifications	111
Trademarks	112

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).