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Z690 Chipset Motherboards and Alder Lake CPU

MatiCohen said:
Interesting, what if @CaseySJ tried the following
6P, enable HT only on 2 cores
4E
total 12 threads. lol

Did anyone notice a breakthrough in the Russian forums? I guess vit and others are more active there
Click to expand...
Just tried this experiment:
  • BIOS --> Hyper-Threading --> Auto (this enables per-core HT)
  • Note that Per Core HT Disable Settings are backwards:
    • To enable HT on a particular core, we set Core X HT Disable to Disabled
    • To disable HT on a particular core, we set Core X HT Disable to Enabled
211117162735.jpg
211117163753.jpg

  • Result: x86_validate_topology() 10 threads but 12 registered from MADT.
Bottom Line:
  • No combination of P-core, E-core, and HT settings will solve this problem. Topology check in macOS is fairly robust.
 
Last edited:
CaseySJ said:
Just tried this experiment:
  • BIOS --> Hyper-Threading --> Auto (this enables per-core HT)
  • Note that Per Core HT Disable Settingsare backwards:
    • To enable HT on a particular core, we set Core X HT Disable to Disabled
    • To disable HT on a particular core, we set Core X HT Disable to Enabled
View attachment 534802 View attachment 534805
  • Result: x86_validate_topology() 10 threads but 12 registered from MADT.
Bottom Line:
  • No combination of P-core, E-core, and HT settings will solve this problem. Topology check in macOS is fairly robust.
Click to expand...

@MatiCohen mean 4 HT disabled instead of 2 HT ... OK, Enabled to be disabled :crazy:
 
etorix said:
EFI folder v. 0.5​

I have amended the standard OpenCore 0.7.5 EFI folder for Alder Lake with the feedback of the last days.
...
Click to expand...
Thanks for keeping this up to date! We'll soon have a number of folks with all sorts of Z690 motherboards, so this is a good place for them to start.
 
Many pages ago, just before the experimentation with CPUfriend began, there was speculation that the use of iMacPro1,1 SMBIOS achieved high Geekbench scores by causing the CPU to run at full power.

Is that also how CPUfriend with the iMacPro1,1 vectors achieves high scores?

Thanks.
 
faithie999 said:
Many pages ago, just before the experimentation with CPUfriend began, there was speculation that the use of iMacPro1,1 SMBIOS achieved high Geekbench scores by causing the CPU to run at full power.

Is that also how CPUfriend with the iMacPro1,1 vectors achieves high scores?

Thanks.
Click to expand...
By using frequency vectors from iMacPro1,1 we enable Alder Lake to run at high speed when necessary and throttle down when idle. Frequencies don't stay high continuously, which would be inefficient and a waste of energy. Benchmarks show very good results, which validates the argument in favor of using CPUFriend.

CPUFriend is highly recommended for any CPU that is not natively supported by macOS.
 
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CaseySJ said:
By using frequency vectors from iMacPro1,1 we enable Alder Lake to run at high speed when necessary and throttle down when idle. Frequencies don't stay high continuous, which would be inefficient and a waste of energy.

CPUFriend is highly recommended for any CPU that is not natively supported by macOS.
Click to expand...
Thanks.
 
Are you all using SSDT-PLUG-ALT for Alder Lake?
 
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