Hi everyone! I've had this problem since May 2014. I already replaced one logic board and the problem is still there. Sometimes, mainly when I'm surfing the web, the MacBook suddenly freezes and only the mouse stays responsive, but I can't click or anything. Everything else in the system is totally frozen. After 15/20 seconds, the Mac slowly goes back to normal executing all the inputs I gave when it was frozen, and after a few minutes, it starts freezing again until I shut it down and reboot. I already reset the SMC and everything, reinstalled the OS at least 8 times (Mavericks, Yosemite, El Capitan) so it's not OS related. I managed to save 2 crash logs, which appeared one 10 seconds after the other. I'll upload them here. Should I take the Mac to the Genius Bar and get the second logic board replacement? I'm sick of this Mac, it's been at the Genius Bar 5 times in less than 2 years, and the main problem is still here. What could be the cause this time? Thank you!