James Drake Posted November 8, 2011 Share Posted November 8, 2011 hi, if i'm going to use nullcpupowermanagement.kext then i may as well turn off the power management features in the bios? Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/ Share on other sites More sharing options...
James Drake Posted November 8, 2011 Author Share Posted November 8, 2011 anyone? what are the downsides to running nullcpu? Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768772 Share on other sites More sharing options...
Gringo Vermelho Posted November 8, 2011 Share Posted November 8, 2011 Unless you have good cooling, shortening of CPU life and possible overheating which can lead to thermal throttling kicking in, causing your CPU to automatically lower its clock speed. But why do you want to do that? You should try getting native power management working instead of disabling it. There are plenty of recipes out there. Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768779 Share on other sites More sharing options...
James Drake Posted November 8, 2011 Author Share Posted November 8, 2011 apparently i have to patch the appleintelcpupowermanagement.kext which makes updates harder. Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768794 Share on other sites More sharing options...
Gringo Vermelho Posted November 8, 2011 Share Posted November 8, 2011 Ahh.. must be a Sandy Bridge platform then. Have you seen this? http://www.insanelymac.com/forum/index.php?showtopic=253642 Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768798 Share on other sites More sharing options...
James Drake Posted November 8, 2011 Author Share Posted November 8, 2011 yes and also, this is besides the point. yes it would be cool to have 100% functionality. the question is if you ARE USING nullcpu, how should you set your BIOS? Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768800 Share on other sites More sharing options...
Gringo Vermelho Posted November 8, 2011 Share Posted November 8, 2011 It is not beside the point if there is a way you can have native power management working. Having it working is obviously preferred to having it disabled. If you're not using it, it doesn't matter how you set your BIOS. Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768836 Share on other sites More sharing options...
James Drake Posted November 8, 2011 Author Share Posted November 8, 2011 yeah, obviously having it working is preferred. can you help me do that? Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768845 Share on other sites More sharing options...
Gringo Vermelho Posted November 8, 2011 Share Posted November 8, 2011 I don't know...maybe. I don't have any Sandy Bridge experience, I don't know what the issues are. I have C-, P-states and sleep/wake working here but I have P45/ICH10R/Core 2 Duo. I haven't been able to get Hibernation working and I don't like to experiment with it as I already lost my whole installation once in a freak hibernate accident. Follow the link I posted above, the thread deals with native power management on a Sandy Bridge platform. General requirements for native power management: An Intel CPU that can run the vanilla kernel Power management features and ACPI 2.0, ACPI APIC enabled in the BIOS Chameleon 2.1 (or derivative) with GeneratePStates=y and GenerateCStates=y set in /Extra/org.chameleon.Boot.plist. "best match", complete model identifier DMI data in /Extra/smbios.plist. Use a model identifier from a Mac with the same or similar CPU microarchitecture. Use a Macbook identifer for a laptop, MacPro or iMac for a desktop. If you can find one with a similar Intel or Nvidia chipset and even on-board video, then that's a plus. AppleLPC.kext and AppleIntelCPUPowerManagement.kext must be loaded Sometimes DSDT patches to USB and other devices are required for S3 sleep/wake to work properly Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768849 Share on other sites More sharing options...
James Drake Posted November 8, 2011 Author Share Posted November 8, 2011 thanks for this! first i have to be able to actually boot into snow leopard though! Link to comment https://www.insanelymac.com/forum/topic/271796-nullcpupowermanagement-and-bios-settings/#findComment-1768851 Share on other sites More sharing options...
Recommended Posts