Hello Guys, So I tried in a couple of days here made a Lenovo y580 hack. A few months ago I successfully instal El Captain and one day I try fix the keyboard and discovered that motherboard broke the keyboard connection, and replace it in a eBay. Since this I install Sierra and have some success some deception on my HD4000. I don't know specifically what problems its. I make de DSDT patch and use the config from the installer. I read about but has some limitation in understand all the process...sorry.
The computer works but when I use more CPUs or GPU its crash with a color lines. In my log has a lot of: memory high watermark and exceeding limit of 50% cpu. Also I found "acpi-device" = "IOACPIPlatformDevice is not serializable". I don't know what happen in Finder that I can't change the viewer preferences to see in different organization (date, size, etc). I download the Sierra from Apple 3 times and make fresh installation more than 3 times.
I hope that someone can help-me please.
My files its in attachment.