Replacing Dual Core CPU with Quad Core

[OSX86@an43]

I recently purchased a a new quad core CPU to replace the Dual Core CPU that i have been building all of my machines out of (using the Boot132 method). I was pretty sure that just swapping out the CPU would cause a kernel panic (which it did of course), but I am now looking for a way to swap the CPU out without having to reinstall the OS and all of the software that i have.

 

I am currently thinking that building a bootable OSX DVD with all of the tools I used to build the original system may be the way to go. Here is what I was thinking:

 

Replace the CPU with the Quad Core, Boot off of the Boot132, swap for the bootable OSX DVD, remove the DSDT file, and other files I had to create/update originally, recreate those files and settings since there is now a new CPU in the box, then reboot.

 

I am not sure if it will work, but I am hoping... Anyone have any other ideas or experience in upgrading their Hackintosh CPU as I am getting ready to attempt?

 

Thanks all!

[Beerkex'd]

I think you're on the right track, maybe you need to redump your DSDT with the Quad Core CPU installed. Then make the same modifications to the new DSDT.

 

You can extract the DSDT table with Everest Corporate Edition under Windows, or use a Linux live CD.

 

Did you reset CMOS after installing the new CPU?

 

Check your BIOS settings - sometimes installing a new CPU will revert some settings back to the defaults. Or new settings will appear because your old CPU didn't support them. I got a new C-State setting when upgrading from P4 651 to C2D E8500.

 

Generally you can enable all CPU features except the CPU ID Limit setting - this should be left off.

 

But if you upgraded from a dual core CPU and that was working fine, you could probably still boot with a CPUS=2 kernel flag. But then you will not be able to extract a clean DSDT under OS X - whatever utility you use will just extract your patched one.