Contribute
Register

macOS Native CPU/IGPU Power Management

Joined
Aug 25, 2012
Messages
609
Motherboard
Gigabyte Z170X-UD5-TH
CPU
Intel i7 6700K
Graphics
MSI AMD RX480/8GB
Mac
MacBook Pro
Classic Mac
Performa, Power Mac, PowerBook
I updated my main working SSD to 10.14.4/Clover 4910 the other day. Now I can only boot when I have the nullcpu kext loaded. Of course, my CPU is then stuck on full speed according to the Intel Power Gadget app.

I have had proper CPU power management for years with a SSDT for an overclocked 6700k. This doesn't work anymore for some reason, and when I remove this SSDT and try
  • config.plist/ACPI/SSDT/Generate/PluginType=YES
I am stuck at the same point. BTW, I see mention of 1, true, yes for this parameter. Does this make a difference at all?

Is it safe to just use the current Clover Configurator for setting this or do I have to do this by hand(editing the config.plist withg TextWrangler)?

In short, nullcpu is suddenly mandatory for a succesful boot. Both methods mentioned in post #1 of this thread will not work on my system.

What am I missing?

Any ideas most welcome.
 
Joined
Oct 3, 2011
Messages
64
Motherboard
GA-H97-D3H
CPU
i5-4570
Graphics
HD4600, GIGABYTE Radeon RX 580 Gaming 8G
Mac
MacBook Pro
Mobile Phone
Android, iOS
Apology for the delay in replying
CPU PM is not working, I do not see the cause
Hi toleda,

I found out that I used the wrong frame buffer ID for the IGPU at the last post. For this reason, it came to the consistently high CPU frequency. I have now disabled the IGPU completely. After an hour AppleIntelInfo shows me all P-States. What do you mean, is PM working now? X86PlugPlugin is displayed in IORegistryExplorer. AppleLPC is also loaded.
 

Attachments

toleda

Moderator
Joined
May 20, 2010
Messages
24,301
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS

toleda

Moderator
Joined
May 20, 2010
Messages
24,301
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS

toleda

Moderator
Joined
May 20, 2010
Messages
24,301
Motherboard
Asus Maximus VII Impact
CPU
Core i7-4770K
Graphics
RX 560 + HD4600
Mac
iMac, MacBook Pro, Mac mini
Classic Mac
512K, LC, Power Mac
Mobile Phone
iOS
Now I can only boot when I have the nullcpu kext loaded
Boot problems are off topic. Native macOS boots without "nullcpu kext." Suggest a clean install or post to the appropriate Desktop Forum
 
Joined
Oct 3, 2011
Messages
64
Motherboard
GA-H97-D3H
CPU
i5-4570
Graphics
HD4600, GIGABYTE Radeon RX 580 Gaming 8G
Mac
MacBook Pro
Mobile Phone
Android, iOS
I have different Settings now than in Post 1016.
 
Joined
Nov 13, 2018
Messages
15
Motherboard
Asus Maximus VII Gene Z97-3503
CPU
i7-4790K
Graphics
RX 580
Mobile Phone
iOS
CPU PM is working

Not an audio problem
Configuration problem specific to your system, likely, USB
Yes I know that already, I have mentioned it twice in my posts.

Do you have any idea what might be causing USB usage to spike my CPU speeds?
I have a similar motherboard to yours.
 
Joined
Nov 13, 2018
Messages
15
Motherboard
Asus Maximus VII Gene Z97-3503
CPU
i7-4790K
Graphics
RX 580
Mobile Phone
iOS
Never experienced the problem, no suggestions.
Would you be so kind to share your config.plist with me? (Via pm if you don't want it publically available)

I just want to compare what you have against mine, since we share almost similar motherboards (Maximus series), and see if I have overlooked something there that might be causing this issue?
 
Top