9.2.0 speedstep kernel and new smbios for pc_efi

U can find new universal speedstep kernel in #10.5 topic in irc network.

Thx apple for releasing sources.

also, here u can get new smbios for pc_efi, it adds more memory informatio to profiler

(on 10.5.2), AppleSMBios-27,

if that one doesn’t work for u, try iGuru’s smbios :


  1. gff
    February 14th, 2008 | 3:22 pm

    Just recently installed iatkos leopard and updated to 10.5.2 ok how do I install this. Noob question I know!

  2. lastExile
    February 14th, 2008 | 3:42 pm

    Thanks ! 🙂

    Download it and google for kext helper

  3. kingtut
    February 14th, 2008 | 5:43 pm

    Intel 945G mobo w/ GMA950 and Pentuim D 950 Working Super Fast. First upgraded pc_efi to boot_v8.
    Did 10.5.2 upgrade, then new 9.2 TOH kernel, then Leopard 1.0 Graphics Update (dmg installed fine as is). I use unmodified AppleSMBios.
    GeekBench 64bit score (228) 8% faster than old kernel.
    Graphic Update has made the cursor and UI very snappy!
    Netkas; Thank you, Thank you!!

  4. roisoft
    February 14th, 2008 | 5:55 pm

    Hi netkas!

    With this Applesmbios my memory report on system profiler fails,

    10.5.2 (vanilla)efi strigs for Audio-Grafx-Network(efi 8)
    C2D E6850
    4 Gb Ram 800 (Geil)
    7600 gt

  5. February 14th, 2008 | 6:08 pm

    @netkas, System Profiler is giving me this error on Memory section:
    There was an error while gathering this information.

  6. stormlight
    February 14th, 2008 | 6:08 pm

    anyone know if this new smbios adresses some of the application crashes the previous one caused?

    like logmein ,mozy ,and others?

  7. Mark
    February 14th, 2008 | 6:13 pm

    kext helper only seems to install kext files!!!

    This is a kernel. Can I just do

    sudo cp ~/mach_92 /mach_kernel

    and repair permissions?

    Do I need the kalyway 10.5.2 combo update before doing this or can I use this kernel with 10.5.1?

  8. cebep
    February 14th, 2008 | 6:16 pm

    i have too

    “@netkas, System Profiler is giving me this error on Memory section:
    There was an error while gathering this information.”

  9. hambone
    February 14th, 2008 | 6:50 pm

    netkas will this work on nforce mobo?

  10. netkas
    February 14th, 2008 | 7:09 pm

    it has fix for nforce mobos.

  11. Mark
    February 14th, 2008 | 7:20 pm

    Can I used this new kernel (10.5.2) with a 10.5.1 install (without installing the Kalyway 10.5.2 combo) ?

  12. frantisheq
    February 14th, 2008 | 7:41 pm

    System Profiler – Memory
    There was an error while gathering this information.

    i’m on new speedstep kernel

  13. Matteo
    February 14th, 2008 | 8:15 pm

    hi, this applesmbios doesn’t work for me..
    i’ve a HP DV6580el laptop pc…
    it has an error gathering information of my pc, so in system profiler it shows that was an error…
    i sure this issue will fixed…

  14. XyZ
    February 14th, 2008 | 8:19 pm

    All of you with “System Profiler – Memory
    There was an error while gathering this information.”
    You need System Profiler patch, search for that pkg on yours leo custom dvd, like XxX distro(i dunno if i can post here link with that patch) and replace only files for System Profiler.
    Then all is ok, still no support for DDR3 memorry 🙁
    Thanks again netkas, i think i need to make a thank you boot… 😀

  15. Matteo
    February 14th, 2008 | 8:31 pm

    thanks, but if i put my old applesmbios system profiler works well…!
    it’s not a problem of system profiler…

  16. Matteo
    February 14th, 2008 | 8:31 pm

    sorry, that help was for memory…

  17. roisoft
    February 14th, 2008 | 9:04 pm

    What System profiler pacth? The Colonel patch?

  18. Me
    February 14th, 2008 | 9:04 pm

    XyZ, are you talking about the Colonel’s System Profiler Patch? His blog comes up about it in Google, but unfortunately, the link to the file is dead. I think it’s on TPB though. I’m not on my hack right now, but if someone could check it out and report back that would be awesome.

  19. XyZ
    February 14th, 2008 | 9:07 pm

    I dunno who made it…but is working!
    I just take it from XxX dvd, then extract with Pacifist only System Profiler files and replace that files.

  20. frantisheq
    February 14th, 2008 | 9:39 pm

    can someone pls upload this System Profiler patch to

  21. Carlos
    February 15th, 2008 | 12:53 am

    This AppleSMBIOS.kext doen’t work on my hackintosh, instead this I use the previous AppleSMBIOS from Tiger 10.4.10, and works very good.


  22. hambone
    February 15th, 2008 | 1:26 am

    Thanks Netkas.. WORKS FINE ON NFOCE MOBO, is there a software to monitor the clock speed?

  23. kamui
    February 15th, 2008 | 9:30 am

    Thanks netkas, but something about this smbios seems to break logmein and mozy from working. These apps work with the 10.5.2 original. This also happened in 10.5.1. Maybe it’s the serial or something that these apps dont like.

  24. edmond
    February 15th, 2008 | 11:21 am


    It seems that your Leopard graphics update was successful.
    I also has a mobo with GMA950 (Asrock 945gz)
    However, the graphics update change the display resolution to 1024×768.
    I cannot change the resolution now. Did I miss something?

  25. Kapuran
    February 15th, 2008 | 1:27 pm

    9.2.0 speedstep kernel make a panic by using VMWare Fusion build 72241 (Guest WinXP). 🙁
    Kalyway 10.5.1 + efi8 + 10.5.2up

  26. Stellarola
    February 15th, 2008 | 3:05 pm

    Ditto on the no info on memory in my system profiler. I’m sure glad it displays as a Mac Pro though! 😀

  27. FavleX
    February 15th, 2008 | 3:20 pm

    the speed kernel 9.2 load at the beginning but I can’t get the login …

  28. February 15th, 2008 | 4:10 pm

    […] out netkas site for the new kernel. As well as some fixes for us PC_EFI folks. If you have problems getting the new […]

  29. bibop
    February 15th, 2008 | 4:20 pm

    Hmm, With Vmware fusion latest, kernel panic at start of VM.
    Kalyway 10.5.1 + efi8 + 10.5.2up
    Works good with Vanilla kernel.
    Sleep not working anymore.

  30. minsong79
    February 15th, 2008 | 6:57 pm

    Hi.. Thanks for all of your hard works~

    I just have few questions…

    I currently have kalyway 10.5.1 with speedstep 9.1 kernel. When I update my system to 10.5.2 using Kalyway’s update package, ACPICPUThrottle.kext always fails to load, which means no more

    The kext file wouldn’t load, even when I use the speedstep 9.2 kernel with the new SMBIOS file.

    Is there anyway to get the speedstep work properly with 10.5.2 ? I really need speedstep. I just cannot stand the fan noise when my system is running at its full speed.


  31. habib
    February 15th, 2008 | 8:08 pm

    SMBIOS and the kernel work on AMD great! thnx a lot!

  32. Harland Sanders
    February 16th, 2008 | 3:44 am

    loginwindow still crashes when trying to do About This Mac on my Celeron. 🙁

  33. Nebuluz
    February 16th, 2008 | 6:10 am

    9.2 Speedstep kernal seems to work fine.

    But the new AppleSMBIOS 1.0.13, doesnt show memory right and also crashes the DVD player somehow.

  34. ihosc
    February 16th, 2008 | 9:04 am

    The new AppleSMBIOS is working alright, except that my processor in about this mac show “3GHz Unknown”. Why can’t it reads my C2D E8400?

  35. Carlos
    February 16th, 2008 | 9:24 am

    Hello Mr. Netkas,
    Which kext is responsible for the cpu fan?
    After the 10.5.2 update, the cpu fan works continously without making pauses. Do you know what can I do?
    I have a core2duo 2,0ghz, 965 intel mobo hackbook

  36. kingtut
    February 16th, 2008 | 3:29 pm

    @edmond …also

    GMA950 to set resolution use terminal text editor pico to modify adding and as in example.

    sudo pico /Library/Preferences/SystemConfiguration/

    Kernel Flags
    “Graphics Mode”=”1280x1024x32@75”

    Repair disk permissions.

  37. kingtut
    February 16th, 2008 | 3:49 pm


    The syntax came out wrong in the GMA950 post.
    See post #14

  38. edmond
    February 17th, 2008 | 9:37 am


    Thanks for your information.
    It worked with 1280×1024.
    However if I set it to 1440×900, the resolution changed to 1024×768.
    It seems there’s still problem with the driver at higher resolution.
    I think I need to wait for a better driver.
    Thanks anyway.

  39. cebep
    February 17th, 2008 | 3:43 pm

    iGuru AppleSMBIOS work 🙂

  40. blueta
    February 17th, 2008 | 4:52 pm

    hi! what’s the speedstep kernel improve over the vanilla kernel?

  41. kbg
    February 17th, 2008 | 5:28 pm

    Does this Speedstep kernel “Universal” include No-hpet? I’m using your no-hpet kernel on 10.5.1 about to update with Kalaway’s 10.5.2 update, but am reluctant to update the kernel until I know it supports my processor (P4, SSE3, EM64T). Any Suggestions for the update? or Should I leave well-enough alone? I’ve been running Leopard without flaw for sometime. Thanks, Camxso

  42. muitommy
    February 18th, 2008 | 6:49 am

    this kernel include nforce fix, so it’s nohpet …
    i think try a new kernel does not hurt,
    you even need to replace the existing kernel,
    but just put it in root and type the kernel name when boot

  43. Dorin
    February 18th, 2008 | 12:28 pm

    To sad that shutdown is still not working .. it is a problem from quite a long time

  44. Mark
    February 18th, 2008 | 5:08 pm

    10.5.2 speedstep works fine on SSE2. However I get a kernel panic when booting my laptop on battery, last line of panic says something like:

    “BSD Process name corresponding to current thread: fsck”

    laptop works find on A/C power.

    Netkas anyidea?


  45. antst
    February 18th, 2008 | 7:15 pm

    No wake after sleep with this kernel.
    Vanilla 9.2 kernel wakes my system without any problems, but with this speedstep kernel it hangs.

  46. February 19th, 2008 | 12:33 am

    great work again, netkas!
    I tried this kernel and it works, even with 10.5.0.
    The only thing bad is that after the update I lost laptop ps2 keyboard and mouse. I’m using the first SMBIOS kext. Is there a difference that may help btw the 2 kexts above?

  47. scannerfm77
    February 19th, 2008 | 6:20 pm

    After install the kernel and kext, my monitor won’t wake up after sleep.

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