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Mavericks: Native CPU / IGPU Power Management
Native Mavericks power management delivers the best combination of
processor and graphics performance and efficiency. The ingredients are
an installed processor specific power management ssdt, a compatible
system definition and the native power management kext. Native
Mavericks power management does not require specific BIOS settings or
anything more than one boot setting to load the power management ssdt.
Credit for the technique described to PikeRAlpha.
What changed between Mountain Lion and Mavericks power management? The
existing processor frequency/power state reporting tools (i.e.,
MSRDumper, HWMonitor) stopped reporting power states between idle and
max non turbo. This led to an incorrect conclusion that native
Mavericks power management was not working. A new tool, Intel Power
Gadget, shows Mavericks power management is working as designed.
To be clear, native Mavericks power management is not mandatory. The
consequences are not severe. Performance is similar, however, higher
temps (~10 C), more power (5-10 W) and sleep problems are likely.
Change Log
v1.1 - 4/4/14 - CPU PM/Core i3/5/7 xxx (1st Generation)/Core 2 and
earlier (below) v1.0 - 4/2/14: Initial Release
Requirements
OS X/10.9.2 or newer
Desktop/Laptop only
Server, see Guide: Asus X79 OS X Controlled SpeedStep
Stock Clock
Verify
OC, use ./ssdtPRGen.sh -f freq flag
Supported CPU/IGPU
Haswell/HD4600+ (Core i3/5/7 4xxx, 4th Generation)
Ivy Bridge/HD4000 (Core i3/5/7 3xxx, 3rd Generation)
Sandy Bridge/HD3000 (Core i3/5/7 2xxx, 2nd Generation)
Native Mavericks Power Management Recipe
System Definition - match processor generation/desktop or laptop
ssdt - custom to installed processor
kext - native IOPlatformPlugin.kext
Not considered
NullCPUPowerManagement.kext
Safe Mode boot (-x)
Discrete graphics