How can I clean a RAM slot?

Yes it is possible to clean RAM slots. To clear of debris use canned air as previously mentioned. Before doing any of the following, unplug it, press the power button for 30 seconds and let it sit for an hour or more for the capacitors to dissipate their charge. For corrosion and/or residue, the first thing I would try would be to put the RAM stick, moistened with 95% or better rubbing alcohol in the slot and take it in - out of the slot a few times and then clean the contacts on the RAM stick. I don't know if they are even available or not, vcr head cleaner sticks with chamois tips & 95% or better rubbing alcohol would be one of the best things. Since it has never been used it may have some residue or corrosion. You might get stuck using a fine emery board with lite in - out strokes. If you go side to side you risk bending the reader pins. That is one of the methods I use to clean the game reader pins on the DS family of game systems, if they are being real stubborn.