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nVidia GeForce 8600M GT 256MB MXM upgrade problem

post #1 of 6
10/24/10 at 3:10pm
Thread Starter 
Hi

I have an Acer 5920g with a nVidia GeForce 8600M GT 256MB. Recently the GPU died (black screen at startup). So I bought another nVidia GeForce 8600M GT 512MB from eBay.

After installing the video card I am experiencing some strange problems. At random, every 10-60 seconds some graphic corruption appears on the screen for a fraction of second. Otherwise the video card works fine, it is recognized by Windows and does not crash my system.

The new video card was installed correctly and stays at about 80 C° when idle. I have the latest graphic driver, DirectX, Windows updates. I do not have any virus or malware.

If I unistall the drivers and use the generic Windows drivers I do not experience the corruption. But with the official nVidia drives I get the problem. I tried a clean reinstall with several version of the drivers but I get always the same problem.

Does anybody know any reason why I could get this problem?

Thanks in advance.
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post #2 of 6
10/24/10 at 3:14pm
Did you try the graphic driver from the ACER support site for your model?

cheers ...
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post #3 of 6
10/25/10 at 5:05pm
Quote:
Originally Posted by terrordar View Post
Hi

I have an Acer 5920g with a nVidia GeForce 8600M GT 256MB. Recently the GPU died (black screen at startup). So I bought another nVidia GeForce 8600M GT 512MB from eBay.

After installing the video card I am experiencing some strange problems. At random, every 10-60 seconds some graphic corruption appears on the screen for a fraction of second. Otherwise the video card works fine, it is recognized by Windows and does not crash my system.

The new video card was installed correctly and stays at about 80 C° when idle. I have the latest graphic driver, DirectX, Windows updates. I do not have any virus or malware.

If I unistall the drivers and use the generic Windows drivers I do not experience the corruption. But with the official nVidia drives I get the problem. I tried a clean reinstall with several version of the drivers but I get always the same problem.

Does anybody know any reason why I could get this problem?

Thanks in advance.
Was the new card 'brand new' or had it been used before...? There is an issue with nvidia mobile GPU's from the 6000 series to the 9000 series... You may find the 'generic' driver from M$ is older and sets the screen resolution differently than the later drivers...
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post #4 of 6
10/28/10 at 2:52pm
Thread Starter 
Hi again

I re-applied the thermal paste and now the temperature is 65C when idle and 80-85C when playing. The artifacts problem seems however indipendent from the temperature.

I experimented a bit with the drivers. Using the official Asus Nvidia drivers, the corruption problem disappears. Using the latest Nvidia drivers instead, the corruption still exist.

Is it normal that the latest drivers are not supported? Could I find some unofficial drivers somewhere?
The Asus drivers are quite old. If I use them instead of the latest ones, how much of performance loss should I expect?

@Mr T: the card was sold on eBay as brand new.
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post #5 of 6
10/28/10 at 2:59pm
Nice. I would stay with a driver version if it works fine. You don't always have to update GPU driver, newer does not mean better

cheers ...
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post #6 of 6
10/29/10 at 3:04pm
Quote:
Originally Posted by qhn View Post
Nice. I would stay with a driver version if it works fine. You don't always have to update GPU driver, newer does not mean better

cheers ...
I concur with that... Generally GPU driver updates aid compatibility with gaming and other graphics intensive programs.. Worthwhile updating DirectX too...
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