System powers off on Video Playback

[martinherrmann]

Problem:
Randomly the Systems goes power off completely when i play Videos. Specially on Safari etc.
I have 10.8.4 running without other issues. Sleep working just fine.

I was using the native Drivers for my GTX 650 and installed the new Cuda + Webdriver for it.
On both (native Drivers and Nvidia Drivers) the Problem stayed.

I have to unplug the Power Supply to be able to start the System.

also my Safari crashed just 2 times while writing this Post.

Specs:
GA-H77-DS3H - GTX 650 1Gb - 8Gb Ram - i7 3770K

 

[martinherrmann]

23.06.13 15:38:43,950 WindowServer[88]: MPAccessSurfaceForDisplayDevice: Set up page flip mode on display 0x745e7284 device: 0x10fa6eb90  isBackBuffered: 1 numComp: 3 numDisp: 3
23.06.13 15:38:44,305 WindowServer[88]: Display 0x745e7284 released by conn 0x1418b
23.06.13 15:39:45,068 Safari[146]: CGContextClipToRect: invalid context 0x0
23.06.13 15:39:47,915 Google Chrome[503]: stat on /Users/mhn/Library/Application Support/Google/Chrome/Default/Bookmarks: No such file or directory
23.06.13 15:39:47,000 kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=505[ksadmin] clearing CS_VALID
23.06.13 15:39:48,000 kernel[0]: CODE SIGNING: cs_invalid_page(0x1000): p=508[ksadmin] clearing CS_VALID
23.06.13 15:43:16,726 Safari[146]: CGContextClipToRect: invalid context 0x0

this was the last thing before it shut down.

 

[martinherrmann]

okay after installing iMac 13.2 smbios, new HDAEnabler and the newest Chameleon i got this after another shut off which came way later than before:

23.06.13 19:06:19,553 PluginProcess[323]: AVF error: AGPMGetManagedPortForAccelerator returned 0x4 for VP4
23.06.13 19:06:19,553 PluginProcess[323]: AVF error: fail to create QT accelerator

 

[martinherrmann]

Alright i got a new info

the Problem is still there but i figured out it only happens when i watch videos in browsers.
i tried to turn on/off webgl without any effect. I did downgrade Safari and no effect either. It happens in all Browsers like Firefox, Safari, Chrome. i honestly crying for help since its the only thing that forces me to switch to windows.

H e l p

 

[martinherrmann]

seems like i fixed it by editing the power management using these Threads:

#1: http://www.tonymacx86.com/ssdt/86906-ssdt-generation-script-ivybridge-pm.html
#2: http://www.tonymacx86.com/mountain-...tive-ivy-bridge-cpu-gpu-power-management.html
#3: http://adamroe.me/blag/2013/04/ivy-bridge-power-management/

i use an ssdt for my CPU now, added the MacPro5.1 to the power management, edited the gpu power management and now it seems to working fine.