Appendix A. CRU instructions
Note: If only one DDR3 SDRAM is used on the computer you are servicing, the card must be installed in 
: lower slot), but not in 
: upper slot).
b
a
To make sure that the DDR3 SDRAM is installed correctly, do as follows:
1Turn the computer on.
2Hold Fn + F2 during startup. The BIOS setup utility screen opens. The System Memory item shows the total amount of memory installed in your computer.
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