Recently a customer send in a MacBook Air Mid 2010 11" with inconstant start up problem. Some time it starts some time it doesn't.. (Probably 7 out of 10 times it doesn't). Once its started, its perfectly fine. When it doesn't start, it just gives 1 beep at start up (indicate no RAM installed). So this is what it shows when it started up. (see pictures) I suspect that one of the RAM chip is dead, its showing 1.75GB of RAM in System Profiler. My question is, is it possible to tell the system skip the faulty RAM and boot the system. Cuz i know all other RAM chips are fine, probably 1 or 2 is dead.