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-   -   Windows 7 Graphics problem (http://www.mac-forums.com/forums/running-windows-anything-else-your-mac/207432-windows-7-graphics-problem.html)

lordog 07-06-2010 09:15 AM

Windows 7 Graphics problem
 
HI

I just bought a iMac and i installed windows 7 on the machine, this iMac is intel 2.66GHz with 4GB of ram. the graphic card is ATI radion HD 4850

When in windows 7 the video card keep on crashing, sometimes every few seconds. and it saids that the driver form the ATI family has crashed and successfully recovered.

I've tried downloading the latest bootcamp software, newest ATI driver. it's still happening. I hope someone can help me

Chef_eam 07-06-2010 10:10 AM

Did you install the regular ATI driver for the 4850, or the Radeon Mobility 4850 driver. The iMac requires the Mobility driver as it uses the 4850 chipset used in laptops. Installing the Mobility series driver should fix the graphics issues.

Here is the 64 bit driver
http://support.amd.com/us/gpudownloa...b_win7-64.aspx

And the 32 bit
http://support.amd.com/us/gpudownloa...b_win7-32.aspx

lordog 07-06-2010 11:30 AM

i installed the regular ATI driver, i'll try the mobility one, see if it works. thanks

Seems to be working fine, i'll update more as i go

chscag 07-06-2010 03:52 PM

Quote:

Did you install the regular ATI driver for the 4850, or the Radeon Mobility 4850 driver. The iMac requires the Mobility driver as it uses the 4850 chipset used in laptops. Installing the Mobility series driver should fix the graphics issues.
I have to wonder why Apple hasn't officially addressed this by a patch or update to Boot Camp? I've seen you help several folks with this and I also have helped folks - all with the same problem, the wrong driver is installed.

Anyway, I wanted to say a heads up to you for discovering it. Good work. :D

Regards.

Chef_eam 07-06-2010 04:03 PM

Quote:

Originally Posted by chscag (Post 1078842)
I have to wonder why Apple hasn't officially addressed this by a patch or update to Boot Camp? I've seen you help several folks with this and I also have helped folks - all with the same problem, the wrong driver is installed.

Anyway, I wanted to say a heads up to you for discovering it. Good work. :D

Regards.

I drove myself crazy for several hours trying to get the drivers installed in Vista. I was having the same issue of he video driver crashing. Then I remembered someone saying that the iMac was just a laptop with a huge screen, so I decided to try the Mobility drivers and it was an instant fix. I agree that Apple should address it with an update to Bootcamp so the correct drivers get installed. But, until they do, I will keep sending people in the right direction to solve this problem.

lordog 07-06-2010 11:38 PM

Thank you guys, i got the problem fixed, i almost think that i should return it and get a PC instead :Smirk:


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