All I can tell you is ever thing slows down with On-Demand Clock Modulation enabled to Auto.
I can confirm it does by my FPS in game.
Intel(R) Processor ID Utility reports each CPU running at Core Speed @ 1.65 GHz and System Bus both @ 440 MHz with it enabled.
With it disabled Core Speeds each @ 3.0 GHz and Both System Bus at 800 MHz.
CPU-Z only shows one CPU and the results are always the same with it enabled or disabled.
This is what I have enabled in BOIS right now but I tried every different variance. Same results.
Boot Failure Guard – Enabled
Spread Spectrum – Disabled
Enhanced Halt State – Enabled
CPU Thermal Throttling – Enabled
No-Execute Memory Protection – Disabled
Intel Speedstep Tech – Enabled
On-Demand Clock Modulation – Disabled.
American Megatrends Inc.
Version: P1.00 “updated to p1.30” Made no difference.