Hi, I have a Macbook Pro "13 mid 2010. Upgraded my RAM (from 4 to 8), replaced my battery and placed a second hard drive a year ago. My Macbook was as new until a few days ago. It started crashing a few times. giving sometimes black screens, white screens, blue screens, green stripes all over.. I even saw a grey screen with a code running really quick before it disappeared again. It is now crashing immediately after start up when it tries to open applications. The screen goes black, then flashes and then sometimes, not always but most of the time it starts beeping continuously with a pause of 4 or 5 seconds in between every beep. I tried to reposition the RAM, I unscrewed the module to see if it was out of place, I tried 1 RAM card in both sloths and the other as well, in all cases my macbook shows the same symptoms. I also tried reset SCM. Since I clean installed my mac a few times I can't run a Apple Hardware Test and Safe Boot won't start also, tried a million times. Is this still only a RAM problem as I thought in the beginning? Can the module be broken? Is it also a software problem? Obviously my warranty is expired and I can' t afford a new laptop yet. Hope someone can help my clarify the issue.