Macbook pro systematically freezes during final cut pro playback
Hi
I have a 2015 retina MPB maxed out. 1tb SSD, 16Gb RAM, AMD radeon R9 M390X.
When i edit projects in Final Cut, after a few moments the fans start to run at max speed. If i keep on playing the project, the computer freezes. Not the app, the computer. I can't do anything, no force close FC, nothing. I have to shut down the machine by keeping pushed the on/off switch. This happens every time i try do edit a project.
The funny thing is that the same project opened in my older machine, a 2012 retina MBP, runs fine. It's a little bit laggy, but that's it. Sam thing on my brother's 13" retina MBP.
My newest RMBP should be faster, but i can't use it.
I tried everything: re downloading the app, creating a partition with only FC installed, running projects in my internal hard drive. Nothing works.
Every time i open a project and play it, just play it, it's a matter of time before the machine freezes completely.
I brought it to an Apple assistance center and they replaced the motherboard. Nothing changed.
I really hope someone can give a me hint about what is happening. This is extremely frustrating since i use this machine for work, as i am a video editor.
Thanks
MacBook Pro (Retina, 15-inch, Mid 2015), OS X El Capitan (10.11.4)