Lenovo Z40-75 - Manual (Page 44)

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Appendix A. CRU instructions
C Connect the AC power adapter and the cables to the computer.
To make sure that the DDR3 SDRAM is installed correctly, do as follows:
1 Shut down the computer.
2 Press 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.
Note: 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