I tried 5.0.9, 5.1.1, 5.1.2, 5.1.3, 5.1.4 and alpha1, none of them worked for me and I don't use those flags, i run SL in 32-bit and all 4 CPU cores work.

so, rc5 is working for you ?

Haven't tried, where can I found?

so how r u starting your osx ?

Chameleon 2.0 RC4 r684

ok, keep in mind that upgrading to rc5 (anval is rc5 based) you can not simply update (by replacing the "boot" file only).

Ok, but when I installed 5.0.9, 5.1.1, 5.1.2, 5.1.3, not only replaced the boot file, installed boot0 and boot1h from your package :(

not sure if u did it right though ;)
you can try to install rc5 with this Unofficial Installer.
Then, and if everything worked fine. You can replace the boot file with mine.

So, i tried the RC5 693 installer, rebooted and resulted the same ACPI KP...
BTW, thank You for your time and patience. I wait for the official RC5 that maybe works, and I'll be back here :D

you most probably missed some kext work (probably on extra) related to ACPI. are you using fakesmc, nullcpupm...?

I have a retail install with these kexts:

• AppleUpstreamUserClientDisabler.kext
• AppleVIAATA.kext
• fakesmc.kext
• IOAHCIBlockStorageInjector.kext

All in the Extra folder

No NullCPUPowerManagement.kext or OpenHaltRestart.kext or SleepEnabler.kext

so what I would do is:
- copy those to a safe place
- proceed with the rc5 installer
- copy/replace those kexts with the ones just added by installer
- rebuild caches/mkexts
- replace DSDT if any
- see if Themes were added or do it manually from svn
- reboot
- if it booted ok, only then proceed to replacing "boot" file with the one from here

Ok, I renamed the Extra folder, installed the RC5 which created a new Extra folder. Copied my 4 kext to the new Extra folder, copied the Themes from the RC5 DMG file. Started Kext Utility.
I do not have DSDT. Reboot and the result is the same ACPI KP.

anybody else did try the pre-release ?
I 'd really appreciate your feedback before committing. Thanks

@diskeeper,
You need to get rc5 on your own :( sorry! but I don't know what kexts you would need. Do some research/tests. And let me know when ready ;)

Tried the custom rc5 installer, boots just fine.
copied the boot, same issue as before I'm afraid:)

did u tried booting with ForceFSB (in boot.plist) ? which value did u give it ?
what about 5.1.2 ?

hum since my processor and mobo doesn't specify a fsb(uses hypertransport instead) value i just blindly tried 266 but didn't help at all
Also tried 215, which is what my bdmsg has reported in the past but didn't work.

are there any other flags than
<key>ForceFSB</key>
<string>215</string>

I should add to get this working?

nope; but what about 5.1.2 ?

5.1.2 boots, major sound issues though

gimme a bdmesg, plz

Whoops, sorry here it is:

For 5.1.2
http://pastebin.com/FCxxrwWV

And for an earlier version that doesn't make my sound glitch:
http://pastebin.com/r1haReDL

thx! Can u tell which one was that ?

hum i couldn't find out which one i was using but i gave 5.0.9 a shoot and the audio works just fine with that as well:

here is the bdmesg:
http://pastebin.com/fXQ73x4E

hum with this this the sound actually works so well that I don't need cpus-3 anymore, all 4 cores work, I'm not sure about the load in logic but this seems very promising, I guess the culprit to my issues with the sound are incorrect fsb values?
I don't know if this will help other Phenom II users but 5.0.9 seems like the best one for my setup at this moment:)

Got my new Lacie Firewire 400 pci today, and it seems to behave a bit better..
But 5.1.2 has the same issues a i had with my built in fw, i guess its because it reports a fsbfreq of 215, forcing it down to 100 has no effect on this, it reports 215 in the bdmesg.
However, unlike my builtin fw, this works much better with pervious bootloaders as well so there is a difference.
For now I'll stick with 5.0.9 since its seems to be the latest release that behaves like it should on my "strange" phenom II.