Lenovo IDEAPAD U150 User Manual page 70

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 (
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.
56
a
: lower slot), but not in SLOT-1 (
b
b : upper slot).
a