I'm having a problem with my Sapphire HD3850. Everytime I turn on anti-aliasing, the game crashes (any game), even after changing the AA setting in the control center.

Does anyone know what is the problem?

yeah, I've tried that already. AA still cannot work.

I've never overlocked before and the card is still new.
Maybe its like what DevilMan said, the PSU cannot supply enough power.
I'm using a Gigabyte SuperB 460w PSU. All games work smoothly without any problems though.
Could this be the problem?

adaptive anti aliasing was disabled, everything is actually on default setting. I'll get Everest later and post the results.

So you're saying it is the psu? my card has always been on default clock speed.

I still can't figure out why I can't turn on anti-aliasing on my Sapphire 3850. Could it be because of my PSU (Gigabyte SuperB 460w)?

I've ran some tests on my computer:

stats : idle - load
Vcore : 1.10V - 1.31V
+12V : 12.16V - 12.03V
+5V : 4.97V - 5.00V
+3.3V : 3.26V - 3.26V
CPU : 42°C - 58°C
GPU : 45°C - 72°C
MB : 36°C - 36°C


Are the readings ok?

All games work smoothly without AA on (AA off in game & CCC settings).

I don't know what to do already, I guess I'll just have to wait until someone figure it out.

nope, it is ticked.

if I untick it then my PC will crash (black screen then normal then black screen then normal again and again), I'll need to click the discard botton for it to be ok again. As long as AA is on then it is not ok.

This post has been edited by Kameshikarin: Jan 10 2008, 04:14 PM

I've tried using 7.11 and 7.12

The Sapphire HD3850 256MB and 512MB version has different cooling. Which cooling method is better? The passive cooling or the heatsink fan one?