Problem with Sapphire x1600

  • Thread starter Thread starter Giacomo
  • Start date Start date
New to Radeon and the first you do is trying to crank it up with ATiTool.
:-)

Are you overclocking the card? Or attempting to run the 3D clocks in 2D?
 
Giacomo said:
The card works great, apart from an unpleasant problem: in images where
the color changes quickly, there are strange bands of dots, like here:

http://img286.imageshack.us/img286/7909/dotspo8.png

Can someone please help to solve the issue? I'm new to radeon, maybe I'm
missing something.

Thanks a lot.
Click to expand...

It seems more like the image itself has a problem. Can you replicate such
dots in other settings?
 
First said:
New to Radeon and the first you do is trying to crank it up with ATiTool.
:-)

Are you overclocking the card? Or attempting to run the 3D clocks in 2D?
Click to expand...
Well, not really. I was trying to underclock it...
The dots appear expecially in moving images, like 3D apps or movies.
Static images are usually good, but not always. I tried all drivers up
to 6.10, all possible settings with Catalyst Control Center. I also
tried to change resolution/refresh rate. I tried analog and not DVI
connection. Thinking of flushing a new BIOS (any suggestion ?), or
perhaps coming back to my old nvidia 6600...
 
Giacomo said:
Well, not really. I was trying to underclock it...
The dots appear expecially in moving images, like 3D apps or movies.
Static images are usually good, but not always. I tried all drivers up
to 6.10, all possible settings with Catalyst Control Center. I also
tried to change resolution/refresh rate. I tried analog and not DVI
connection. Thinking of flushing a new BIOS (any suggestion ?), or
perhaps coming back to my old nvidia 6600...
Click to expand...
Just forgot to mention some other info: AGP 8x, mobo A7V8X-X with latest
4x1 drivers, xp pro sp2.
 
I wonder if you accidentally set the card to run its 3D clock speeds in 2D,
which will lead to artifacts and instability, because the core and memory
voltage is lower in 2D.

When you first ran ATiTool, did it bring up a dialog box to disable the
2D/3D switchover?
 
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