Lenovo ThinkPad Edge E420 User Manual page 112

5. If the two SO-DIMMs are already in the memory slots, press out on the latches on both edges of the
socket at the same time
sure to save it for future use.
6. Find the notch on the contact edge side of the SO-DIMM you are installing.
Attention: To avoid damaging the SO-DIMM, do not touch its contact edge.
7. With the notched end of the SO-DIMM toward the contact edge side of the socket, insert the SO-DIMM
1
into the socket at an angle of about 20 degrees; then press it in firmly
Note: If you install a memory module in only one of the two memory slots, install it in the bottom slot.
8. Pivot the SO-DIMM downward until it snaps into place.
9. Make sure that the SO-DIMM is firmly fixed in the slot and cannot be moved easily.
94
User Guide
1 , and then remove an SO-DIMM 2 to make room for the new one. Be
2
.