RAM (Random Access Memories) problem (Beeping)

When you turn on your PC or your laptop it "beep" one time to let you know that the test was successful and it can continue to the OS (Operating System). Sometimes the beeping wont stop, is not a constant beeping is something like this: "beep, beep, beep" (if the beeping is constant then that means that there's a key on the keyboard that is stuck).  Continuing with the post; if the computer make you a beeping sound like I said before, then that means that theres is a problem with the RAM. What you could do to know if the RAM is good or not is to take it out cleaning it with an eraser (the one that you use to erase the pencil mark in a notebook) and put it back. If work, great if not then the RAM is bad. You have Two or more RAM in the computer then try putting one in one slot if do not work try with the other slot and the other RAM. sometimes there is only one RAM that is damage but the computer need the two to work so that is why is beeping (the computer can work with one RAM only even if you have two) you can get out the damage RAM and put the good one. Before you do something with the "bad" RAM make sure to check the "good" RAM in the other RAM slot to see if work. Sometimes the RAM Slot is the one that is damage; and the computer is fixed. Thanks. Any question ask in the comment box.