How to clean physically RAM

Do yourself a favor and don't ever mix a liquid with a computer....not even if you think it is dry. Computers have two enemies...liquid and heat. Open the side of the case on your computer after you disconnect the power cord and press the power button for 10 seconds to bleed all power from the system. Get a couple of cans of compressed air, specifically designed for office equipment. Youcan get this at office supply, computer retail shops etc. Open all doors, case opening etc., that you can and start at the front of the case and blow the dust, hair and dirt out of the system. Make sure to blow out the dvd/cd drives, floppies etc., clear out any vents, grates and work your way back to the back of the system paying close attention to the heatsink of the processor. When you are done, button her up and fire her up....that's all you need to do. Good luck

hi
if your talking abot the ram connections try using a pencil eraser. That should remove any grime or dirt that may have gathered on the terminals!

Who on earth told you to clean the RAM? If it's dusty just blow on it but don't even consider doing anything else to it.