Mac OS X on x86 Hardware 2008–2024 Technical Archive
InfiniteMac OSx86 › Leopard 10.5 › CPU speed in "About This Mac" is incorrect; is this problema…
9,593 reads · 2009-05-18
Report Leopard 10.5 Voodoo / XNU Kernel Gigabyte G31M / P35

CPU speed in "About This Mac" is incorrect; is this problematic

My Hack is reporting an incorrect CPU speed to the "About This Mac" screen under 10.5.7. My system has a Core 2 Duo e8500 running at stock, non-OC. My Mobo is a Gigabyte EP35-DS3P, and I'm currently running iPC 10.5.7 (upgraded through…

Primary Author
@DrBanzai Published 2009-05-18
Collection
Leopard 10.5
Archival Footprint
9,593 historical reads · 1 curated field notes (from 3 dispatches) · 2009-05-18
Credited Voices (2)
@DrBanzai (2)@SaCleoCheater

My Hack is reporting an incorrect CPU speed to the "About This Mac" screen under 10.5.7. My system has a Core 2 Duo e8500 running at stock, non-OC. My Mobo is a Gigabyte EP35-DS3P, and I'm currently running iPC 10.5.7 (upgraded through 10.5.7 combo update). Vanilla kernel.

Originally, the CPU was not recognized at all. However, I ran the OSX86Tools Autodetect CPU function, and the CPU speed was detected (incorrectly) as a "4Gz Intel Core 2 Duo e8500". The system is stable and running without problems... I'm wondering if the incorrect value that the system is reporting is indicative of a larger problem that I am unaware of.

Any help or advice would be greatly appreciated. Thanks!

Author Updates & Technical Revisions

Follow-up dispatches by @DrBanzai

Author Update #1 @DrBanzai 2009-05-18

That fixed the problem for me; my CPU speed is now reported correctly. What exactly did you do to get the CPU detected properly? And would this replacement kext fix other systems with modern Intel CPUs or is this specific to the Core 2 Duo e8500?

Synthesized Community Field Notes

1 technical responses curated from 3 original dispatches

Field Note #1 @SaCleoCheater 2009-05-18 ↳ Re: @DrBanzai
@DrBanzaiMy Hack is reporting an incorrect CPU speed to the "About This Mac" screen under 10.5.7. My system has a Core 2 Duo e8500 running at stock, non-OC. My Mobo is a Gigabyte EP35-DS3P, and I'm currently running iPC 10.5.7 (upgraded through 10.5.7 combo update). Vanilla kernel. Originally, the CPU was not recognized at all. However, I ran…

Yeah I am having the same problem, showing up as 4.1 GHz ATM.

UPDATE: Solved the problem with a SMBIOS edit.

DL:
rapid share.com/files/234477772/AppleSMBIOS.kext.zip

Sources & Contributor Provenance (2 credited usernames · Thread #2917)
UsernameDossier ContributionDispatchesActive Window
@DrBanzaiPrimary Author22009-05-18
@SaCleoCheaterContributor12009-05-18