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Lenovo B550 Lenovo B550 User Guide V1.0 - Page 39

Removing the optical drive, BIOS Setup Utility, 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/CPU (Central processing unit)/Mini PCI Express Card slot compartment cover. 2 Remove the screw shown in the illustration a. 3 Gently pull the optical drive out b. a b 31

Section	Page
Important safety information	6
Important safety information	6
Chapter 1. Getting to know your computer	9
Top view	9
Left-side view	11
Right-side view	12
Front view	13
Bottom view	14
Chapter 2. Learning the basics	15
First use	15
Using AC adapter and battery	17
Using the touchpad	18
Using the keyboard	19
Special button	21
System status indicators	22
Securing your computer	23
Connecting external devices	24
Chapter 3. Using the Internet	25
Wired connection	25
Wireless connection	26
Chapter 4. OneKey Rescue system	27
OneKey Rescue system	27
Chapter 5. Troubleshooting	28
Frequently asked questions	28
Troubleshooting	30
Chapter 6. Upgrading and replacing devices	34
Replacing the battery	34
Replacing the hard disk drive	35
Replacing memory	37
Removing the optical drive	39
Appendix A. Getting help and service	41
Getting help on the Web	41
Calling the customer support center	41
Getting help around the world	42
Lenovo warranty service telephone numbers	43
Appendix B. Use, and care information	44
Caring for your computer	44
Accessibility and comfort	47
Maintenance	48
Appendix C. Lenovo limited warranty	50
Warranty information	55
Appendix D. Customer replaceable units (CRUs)	58
Appendix E. Notices	59
Notices	59
ENERGY STAR model information	61
Wireless related information	62
TV tuner 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. Features and specifications	72
Trademarks	73

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/CPU (Central processing unit)/Mini PCI Express Card slot

compartment cover.

Remove the screw shown in the illustration

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).