Mnahum,
>> Finally the issue 2 is still here ... if I start chrome or some applications the Mac suddenly become crazy , the CPU become really hot (neat 100°C) and the FAN turn as it's maximum speed.
I did not experience the issue on MBP retina (Mid 2012 model), could you let us know your steps?
if possible, a video/mov is preferred.
Best Regards,
changhai