MacBook Pro owners are attempting to determine whether or not their systems have revised logic boards, which Apple is providing for units that exhibit various issues -- processor whine, excessive heat, sudden shutdowns -- on a case-by-case basis. Many MacBook Pros which have revised logic boards (indicated by Apple in repair notes included with updated systems) lack a serial number identifier in the 'Hardware Overview' pane of Apple System Profiler. Baixar Bleach Legendado Rmvb Completo. Pandora Sims 2 Love Bed. MacFixIt reader Stephen Fleming writes: 'I've had the logic board replaced (endless kernel panics) and have the 'MBP' string. But the easiest way to prove that it's been replaced is that the serial number has been erased. See attached screen shot.