I did just that, and it works perfectly fine for me. i still get (since the upgrade to 10.5.5) my amd cpu listed as core 2 duo in about this mac, but this really is a non- issue. the good thing is that the system is working just fine.

EDIT 1: Well, i just found a big problem: my usb stick is no longer detected. worked great in 10.5.5. anyone has any ideas of what to do about it?

EDIT 2: ok, i found out how to get it to see the usb stick: i have to delete the extensions cache: sudo rm -R /system/library/extensions/caches

problem is i have to do this everytime i restart my computer. i know it's possible to do this automatically, but i did not have to do this on 10.5.5.

is there something that can be done about this?

Install System.kext v9.5.0 as it must be the same version as kernel.
Be noted that System.kext 9.5.0 is included in Voodoo kernel package.

+++

Only problem I have with Leopard v10.5.6 on my AMD machine is System Profiler. It won't show comp info. Anyone has 10.5.5 version of AppleSMBIOS.kext? It's needed to fix this? Please someone drop me a PM if you have a minute to send it to me (working AppleSMBIOS.kext). Once I get it I'll edit this message to remove request. Thanks in advance.

i installed system.kext 9.5 with kext instalelr and it's ok now. also installed applesmbios.kext from 10.5.5 and system profiler works now.

here are system.kext 9.5 and applesmbios from 10.5.5 in case anyone needs them

http://drop.io/6o3tek9

Thanks lemn ;-)

this is a "feature" of the vodoo kernel to increase compatibility

I'm still having problems with the graphics on 10.5.6 update. Already tried every possible installers with no success (NVinject, NVDarwin, EFI String).

Please. Does anyone know of a solution?

-Install 9f23installer.pkg
http://www.fileqube.com/shared/kIJhBN99908
-Run EFI Studio and add your card
http://www.mediafire.com/?xl19omzld9j
-Reboot

What is the issue you were having with graphics?

I'll second Hara Taiki's request for more information. If you could post your system specs in your signature we could help you better. Also, list version specific names instead of a general statement. Thanks.

mouse freeze
 

i have 9f23installer.pkg and EFI Studio but not able to install without mouse function.Can some guide me how to install it..is there any terminal instruction that i can do..

i did replaced ApplePS2Controller.kext and AppleACPIController.kext for keyboard and mouse.both works but mouse freezes.
i replaced GeForce *.* and NVinject.kext for video but no joy..i am able get in to desktop only in safe mode.mouse seems to be okay for few min after waking up pc from sleep.


badly need some help ..

Note : i am getting an error loading failed com.orByte.driver.pcGenUSBEHCI in yellow color font..