Mavericks GTX660 video not working

[agentas007118]

Hello, i have installed the OS X 10.9.1 and i got the headache from that problem.
the problem is that video not works.
here is the details..
https://www.youtube.com/watch?v=USUtgOxRmCQ

PC specs.
Gygabyte H77-DS3H
intel core i5 ivy bridge 3570K
Nvidia GTX660 2gb ram
8GB DDR3 Ram

OS X Mavericks 10.9.1

Anyone please help

 

[pizzamac]

Here is a list of things to try

1) You-Tube/Flash player can have problems if you allow hardware acceleration
(you can right click a video and turn off acceleration - you then need to restart your browser)

2) Change system definition (mac mini does not have a dedicated GPU) - (I use iMac 13.1)
3) Turn off the internal graphics in your bios if it is on
4) Problems with audio devices (USB error-conflict/No Audio devices present, etc...)

Others things:

- use the integrated graphics to see if the problem is related to your dedicated video card
- Ivy Bridge systems have a problem playing HD video (highly documented in this forum)
- if you do not have an usable audio device present(sound output), flash can crash
- If using a DSDT, make sure it is edited/patched correctly for you video card