I realize the ram is soldered, but is there any way to repair the RAM? I'm getting beeps on boot up indicating a RAM issue or is it easier just to replace the logic board? Would you do it? (i.e. is it cost effective)? Are the board from the 13" compatible? If not, what can I do with my computer? I'd like to wipe out the SSD- does it fit in a Mac Pro 6,1?