Nvidia GTX 560 poor performance

I have a PNY brand Nvidia GTX560 OC 1024mb graphics card (not Ti). I am currently working fairly well, with functioning sleep and QE/GL and resolution support. However graphics performance is not nearly as good as it should be. I have tried pre-made patched KEXT files, non of which worked, and some cause freezing or KP issues. I am currently using a patch which is stable, but is not enabling full acceleration.

From what I have read the Apple Graphics Power Management kext is the real key.

So can any point me to a real guide that not only tells me what I need to edit, but can actually explain what I am editing, and what the effects of changing the values really are. A guide that tells you what to do without telling you why you are doing it is next to useless, and in some cases can even guide you to screw up your system.

Here is what my machines profile is set to:

I am currently running just this one graphics card, an Intel i5 3.09 Ghz, 8 GB Corsair 1333 ram MB is a Gigabyte Z77X-UD5H
SMBios Mac Pro 3,1 (if I use other Mac Pro profiles, it will KP during boot)

and here is the info.plist file from my AGPM kext


If anyone here can either patch it correctly, or instruct me how to do so or link me to a page that properly explains how to do it, that would be wonderful. If you need more information about my setup, I would be happy to provide it if I missed anything.

I can't help but I'm interested in achieving full compatibility. I have the EVGA version of this card. It works fine for the most part, but I'm getting daily crashes with it now. Sometimes it freezes on the screensaver, so when I come back I have to reboot. I'm also getting the colored squares crash pretty frequently now. I read in an old thread something about extracting the GPU ROM and adding it to the extra folder, but you need Windows to do this and I don't have that.

I got the 560 to replace the 550Ti, which really wasn't working at all at the time. Now I'm wondering whether full compatibility is possible or if I should just get a 650 or 660 instead.

I've not managed to get wake from sleep to work properly on my set-up with either GPU, or with HD4000, so that's another issue, but I don't need it so am not bothered about that.

I do know the crashes are due to the AGPM being incorrect. Basically, when your machine is idle, or when it goes to sleep, it asks the card to run a power save state that it doesn't actually support. How to fix it? My issue is similar even though the results are different. Some of the "patched" kexts I have tried had the exact same effect, including the official nVidia ones.

It's a bit weird though because mine's also crashing when active. It did it just now. I clicked a link on the App Store and it froze. Also the colored squares crash is different again and that only happens when it's active.

KhanTyranitar said:

I am currently running just this one graphics card, an Intel i5 3.09 Ghz, 8 GB Corsair 1333 ram MB is a Gigabyte Z77X-UD5H
SMBios Mac Pro 3,1 (if I use other Mac Pro profiles, it will KP during boot)

Click to expand...

Try deleting your appletymcedriver from S/L/E ...that worked for me, currently running my hackpro as 5,1 !


Also I had this problem before, with my Asus 560Ti...I tried installing the new nvidia drivers and cuda drivers, but that acutally made it worse.
So I did a reinstall but skiped the nvidia drivers, just added the OpenCL patch the floats around the forum (not the one in multibeast),
and installed the MacPro 5,1 smbios.

Now it´s running perfectly fine ! ;-)

mrazster said:

Try deleting your appletymcedriver from S/L/E ...that worked for me, currently running my hackpro as 5,1 !


Also I had this problem before, with my Asus 560Ti...I tried installing the new nvidia drivers and cuda drivers, but that acutally made it worse.
So I did a reinstall but skiped the nvidia drivers, just added the OpenCL patch the floats around the forum (not the one in multibeast),
and installed the MacPro 5,1 smbios.

Now it´s running perfectly fine ! ;-)

Click to expand...

I'm going to try this next. For now I've changed the device id in /System/Library/Extensions/NVDAGF100Hal.kext/Contents/Info.plist to 1201 to see if that helps. So far it's been ok. Specifically this line:
I switched the '1240' to '1201' which is the correct device id for the 560, as shown in the System Profiler.

Hi friends
In 10.7.5 or in 10.8.xx most Nvidia cards get full resolution, I have an Asus GTX 560 and get full acceleration and support in 10.8.2 and i use the same onw with Lion get full support what happend you check or buy 10.7xx or 10.8.xx from app store and do a clean install.

http://www.tonymacx86.com/graphics/...me-let-us-discus-our-problems.html#post462564

I seem to have got rid of all problems except freezes. The screen freezes, although the mouse still moves. Keyboard works too. But I have to do a hard reset. I'm getting about two a day.

I tried the new Multibeast 5.1 NVIDIA drivers and it's still happening.

Fresh install time? Or change the 560 for a 650/660?

EDIT: Deleting AppleGraphicsPowerManagement.kext seems to have cured the freezes, with no impact on performance.

EDIT 2: Spoke too soon. It's still freezing, although less than before. Maybe it's a 10.8.2 problem.

EDIT 3: Rolled back NVIDIA drivers, edited AGPM to acknowledge GPU, switched off screensaver - I think freezes have stopped.