Retina Macbook Pro Freezes and Restarts Itself
I have an early 2013 15" Retina Macbook Pro (16Gb RAM, 512Gb SSD, dedicated graphics card) that has an occasional problem of freezing and then restarting itself. The problem seems to usually occur when I'm using Safari or some other application, but it is inconsistent. The computer will completely freeze, the trackback and both the keyboard are completely unresponsive, and the screen will stay frozen for about 15-20 seconds before the computer restarts itself. When the computer restarts, it turns back on normally and after logging in, all of my previously open windows and programs reopen automatically (I have this feature turned off however). When I look in Console, there are no panic logs and the computer seems to not register any sort of event that is causing this crash. It's been happening on and off for over a year now. It happened on both Yosemite and now El Capitan (running 10.11.1 currently). There are times where it will happen multiples times a month or the computer will go months without doing this. Not sure how to go about troubleshooting this problem. Any help would be appreciated!
MacBook Pro with Retina display, OS X El Capitan (10.11.1), 15" Early 2013 Model