The first 64-bit PC processor, in a class by itself, designed specifically for
cinematic computing, immersive gaming and amazing digital mediaStep 5:
Installing RAM
All modern RAM (memory) is keyed so it can only fit into the DIMM slots a
certain way. With modern motherboards, it should not matter which slot you use,
though if they are numbered in the manual or on the board, it is always a good
idea to go with slot one first. Hold the RAM module next to the slot so that the
indentation(s) on the green PCB line up with the bumps in the slot. (see pic
below).
Once you are certain of the orientation of your RAM, open the levers on either
side of the DIMM slot and push the RAM module straight down into the slot until
both levers snap closed on either side. This will require some force. If it does
not seem to be going in with a moderate amount of force, remove the module and
re-insert it, making sure that it is exactly lined up with the keyed points in
the slot.
Installed properly, the levers on the sides of the DIMM slots will be completely
closed and locked into small cutouts on the outer edges of the RAM module.