Hi, I'm trying to help my GF who is facing this problem with her DELL Inspiron 3520 laptop. Her screen is completely black when she opens the laptop and after a while 3 beeps sound...and then again and again. Now, I've read that this could be a RAM problem...other sites says you need to replace the Motherboard, others like this one: http/blog.parts-people.com/2014/06/27/dell-inspiron-3520-beep-codes-diagnostic-indicators/ ..Show a bit more complex problems (For me at least). So far, we've tried her unplugging it, removing the battery and holding down the startup key for up to even 60 secs and the trying to open it again, nothing. We've also tried and have removed the RAM and placed it back again after making sure there is no dust or anything, nothing. So...what are we supposed to even do now?