[help] EVGA gt 640 - graphic freeze - Driver problem

[JacoLoco]

Hello guys,
On my machine (the Hack that you find in the signature) occurred an error rather strange, while I was playing "Red crucible 2" and I was trying to answer a skype call, I experienced a kind of "freeze" of the mac.

Disoriented I rebooted the computer a few times, trying to figure out what it was and I discovered that while the PC continues to work and execute any command indicates the keyboard, there is no movement-change of the images on the screen. The screen freezes randomly, on the log in, a couple of minutes after, or before the log. (But never on the loading gray screen with the gray apple)

So I thought to correct the video driver with the OSX update taking it from 10.8.2 to 10.8.3 but without success. I tried to start ignoring cache, and finally i was able to start it (and relatively stable albeit with some strange flickering) in safe mode with -v -x

What can I do now to bring back my video card to its stability?
Thank you in advance.

 

[JacoLoco]

Up! Up! up!

 

[JacoLoco]

I have just update my multi_Beast to 5.3.0 and reset my graphicsenabler=no nothing changes----

 

[agrajag]

I have not had this happen to me since upgrading to 10.8.3- can you give that a try?

 

[JacoLoco]

what type of try...?

 

[JacoLoco]

Even the rebuid of the cache of the kext in the System/Library/Extensions path and in the Extra/Extensions didn't solve the problem.
I add my org.chameleon.Boot.plist maybe it can be usefull...View attachment org.chameleon.Boot.plist

 

[JacoLoco]

Just tried to fix my problem with Chameleon Wizard, i had set GraphicsEnabler=Yes and PCIRootUID=1
but nothing changes....

 

[trashcanus]

Here you go : http://www.tonymacx86.com/graphics/97939-low-performance-gtx-570-msi-10-8-3-a.html

It's all about sysdef. You should use iMac 13,2 since you have Ivy Bridge CPU, I think.