cpus=1 fix for AMD Athlon 64 x2 3800+ ?

[jsl]

I tkink you've got it right. I also have a Asus A8N-SLI Deluxe with 939 socket and I think (not sure at all, I don't remember ) I did installed Mav on it but never get to far with it. I gave up on this since it wasn't stable and also because I couldn' install Windows 8.1 due to an incompatibility with those 939 socket CPU's.

 

And Yes, I can confirm that the HP dc5750 is an Athlon 64 X2 3800 + AM2 socket based.

 

I'm really curious about your procedure for a 10.9.5 update

You must have a fully working 10.9.4 or 10.6.8 for the following procedures after update to 10.9.5:

1. Replace mach_kernel with the attached one (mach_kernel.zip)

2. Replace these kexts of the attached one (10.9.5_AMD.zip)

3. Repair permission by Disk Utility

4. Reboot for the first time with boot argument : mach_kernel npci=0x2000 -v UseKernelCache=N

5. Because I have renamed the patched kernel as mach_kernel, you can get fast boot later by UseKernelCache=Y

Good luck !

mach_kernel.zip

10.9.5_AMD.zip

[polyzargone]

Many thanks, it works !

Just had a KP soon after update completition while installing Security Update but I think it was kernel-related. I booted back with the deekay kernel and everything is fine so far. Since 10.9.5 is obviously the ultimate update for Mavericks, I'll wait till Yos AMD kernel is ready