Lenovo G50 User Manual

							Appendix A. CRU instructions
35
To  r e p l a c e  the hard disk drive, do the following:
1Turn off the computer. Disconnect the AC power adapter and all cables 
from the computer.
2Close the computer display and turn the computer over.
3Remove the battery pack.
4Remove the Optical drive/Hard disk drive/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover.
a. Remove the screws that secure the compartment cover .
b.Remove the compartment cover .
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
a
b
2
2
1
1 
						

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Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
5Remove the frame fixing screws  .
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
1
1
1
2
2
c
333 
						

							Appendix A. CRU instructions
37
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
6Pull the hard disk drive tab in the direction shown by arrow  .
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
333
d
4 
						

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Appendix A. CRU instructions
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
7Ta k e  out the hard disk drive secured in a metal frame  .
Lenovo G40-30/G40-45/G40-70/G40-70m/G40-80/Z40-70/Z40-75
4
e
5 
						

							Appendix A. CRU instructions
39
Lenovo G50-30/G50-45/G50-70/G50-70m/G50-80/G50-80 Touch/
Z50-70/Z50-75
8Remove the screws and detach the metal frame from the hard disk drive.
9Attach the metal frame to a new hard disk drive and tighten the screws.
0Put 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.
AReinstall the frame fixing screws.
BAfter aligning the attachment clips with their matching gaps, reinstall the
compartment cover.
CReinstall and tighten the screws.
DReinstall the battery pack.
ETurn the computer over again. 
FConnect the AC power adapter and the cables to the computer.
5 
						

							40
Appendix A. CRU instructions
Replacing memory - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
You can increase the amount of memory in your computer by installing 
double-data-rate three synchronous dynamic random access memory (DDR3 
SDRAM)-available as an option-in the memory slot of your computer. DDR3 
SDRAM is available in various capacities.
 To  install DDR3 SDRAM, do the following: 
1Touch a metal table or a grounded metal object to reduce any static 
electricity in your body, which could damage the DDR3 SDRAM. Do not 
touch the contact edge of the DDR3 SDRAM. 
2Turn off the computer. Disconnect the AC power adapter and all cables 
from the computer.
3Close the computer display and turn the computer over. 
4Remove the battery pack.
5Remove the Optical drive/Hard disk drive/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover.
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.
•Select models of the computer may have only one memory slot. Refer to the actual product. 
However, the procedure for replacing the memory is the same as l
isted below.  
						

							Appendix A. CRU instructions
41
6Remove the DDR3 SDRAM by pressing out on the latches on both edges 
of the socket at the same time. Be sure to save the old DDR3 SDRAM for 
future use.
7Align the notch of the DDR3 SDRAM with the protrusion of the socket 
and gently insert the DDR3 SDRAM into the socket at a 30-45° angle.
8Push the DDR3 SDRAM inward toward the socket until the latches on 
both edges of the socket are pushed into the closed position.
9After aligning the attachment clips with their matching gaps, reinstall the 
compartment cover.
0Reinstall and tighten the screws.
AReinstall the battery pack.
BTurn the computer over again. 
1
12
1
2 
						

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Appendix A. CRU instructions
CConnect the AC power adapter and the cables to the computer.
To  m a k e  sure that the DDR3 SDRAM is installed correctly, do as follows: 
1Shut down the computer.
2Press the Novo button and then select BIOS Setup. The BIOS setup 
utility screen opens. The System Memory item shows the total amount of 
memory installed in your computer. 
Notes:
•When replacing the memory is completed, you need to restart the computer after the first 
reboot.
•If only one DDR3 SDRAM module is used on the computer you are servicing, it must be 
installed in SLOT-1 ( ), but not in SLOT-2 ( ).
a
b 
						

							Appendix A. CRU instructions
43
Replacing the wireless LAN card  - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 
To  r e p l a c e  the wireless LAN card, do the following:
1Turn off the computer. Disconnect the AC power adapter and all cables 
from the computer.
2Close the computer display and turn the computer over.
3Remove the battery pack.
4Remove the Optical drive/Hard disk drive/Memory/Central processing 
unit/Mini PCI Express Card slot compartment cover.
5Disconnect the two wireless LAN cables (one black, one grey) .
Note: The wireless LAN card in select models may have only one cable (black).
a
1 
						

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Appendix A. CRU instructions
6Remove the screw that secures the wireless LAN card  .
7Ta k e  out the wireless LAN card  .
8Install the new wireless LAN card.
9Reinstall and tighten the screw.
b
2
c
3