Dolphin Crashes

[paraemuladores]

Hi there. I'm not sure wich forum this question belongs to, so I'll try here . I downloaded Dolphin, version 3.0 - 427 for 64 bit, and I'm using it with this hardware:
Core I7-2670QM 2.20 GHz
4 GB RAM
500 GB hard drive with 391 GB free
Video ATI Radeon HD 6490

I'm using Windows 7 Home Premium, 64 bit version.

I'm using this configuration in the emulator:









In video->General, it shows this:



But that it's not the Graphics card. Could it be related to this?:



This is what the device manager shows me related to the video board.
And also, the question of the post: I'm playing Mario Kart Wii, and the game crashes. The sound doesn't work very well, sometimes it's like it hangs, and then returns to normal, but after I start racing, the emulator crashes completely. I saw in a post that running it with compatibility mode with windows vista sp2 solved the problem, but in my case, it didn't. What can I do?