GA-X79S-UP5 mobo
BIOS F4u (the latest BIOS for my board, optimized defaults)
i7-3930K
GTX 680
OS X 10.11.4
All relevant drivers are updated.
This hardware set-up ran Mountain Lion and Mavericks without a hitch. Sleep worked poorly (monitors wouldn't reinitialize), however, power management and speed stepping worked as expected (many c and p states, throttling as needed).
Current El Capitan install works fine,
except speed stepping does
not work. CPU is stuck on whatever max frequency is set at boot.
I'm unable to unlock the board using the techniques described in this thread and in
this thread. Perhaps power management is a lost cause?
I'm also unable to create an ssdt using piker alpha's script
with the -c and -w flags. I get this error:
- Error: Invalid argument detected: -c (check ssdtPRGen.sh -h)
If I run it
without those flags, I also get these errors:
- Error: board-id [Mac-F42C88C8] not supported by Sandy Bridge – check SMBIOS data / use the -c option
- I'm unable to run the script with the -c option
- Continue? y
- Warning: 'system-type' may be set improperly (1 instead of 2)
At this point the script compiles and creates the ssdt.aml file. I rename it SSDT.aml, drop it into the Patched folder, reboot, and nothing changes.
If I try to change the system type from 3,1 to 6,1, monitors won't reinitialize at boot. Not the best scenario.
ioREG is attached.
Any help or advice is appreciated.