Sapphire HD4850 Bios Modded, Core upper Limit to 850Mhz in CCC!

[Factotum]

Actually after more usage, it's no longer idling at 160Mhz 2D mode, it's back to 500Mhz for some reason even when I'm not doing UVD decoding. Any idea? Driver bug or what? I'm using the newest 8.7 Cats.

see up, i have 160MHz in 2D

[HKPolice]

see up, i have 160MHz in 2D

Yes, I see 160Mhz after my first reboot of freshly installed drivers. But if I reboot again, it goes back to 500Mhz!!

[HKPolice]

Ok I've figured it out. If you overclock too much and VPU recovery kicks in, it changes your CCC profile so that 2D clock gets switched to the 'medium' 500Mhz setting and your 3D voltage is also LOWERED by about 0.02v.

I was at around 1.17v with this bios in 3D before, after VPU recover + 500Mhz 2D switch, it dropped down to 1.15v.

Always delete the CCC profile files after a VPU recovery!!!

Stupid ATi drivers

[Caped Crusader]

Ok I've figured it out. If you overclock too much and VPU recovery kicks in, it changes your CCC profile so that 2D clock gets switched to the 'medium' 500Mhz setting and your 3D voltage is also LOWERED by about 0.02v.

I was at around 1.17v with this bios in 3D before, after VPU recover + 500Mhz 2D switch, it dropped down to 1.15v.

Always delete the CCC profile files after a VPU recovery!!!

Stupid ATi drivers

Hey, this happened to me yesterday! I was playing Space Siege with 730/1100Mhz just fine, then I went to play some other game (I think it was GRID...) and bang! VPU recovery error and tray notification!
After that, I couldn't play any other game (even Space Siege which was runnning fine) with that OC... I had to go back to 700 core or something like that. The 2D clocks also changed from 160/500 to 160/750 which was odd...

Then I remembered this thread and saw your post. I went and delete the profiles folder and I have everything ok again.
Is there any way to go around and prevent this protection from kicking in? I don't want to use a fixed BIOS (been there).

Thanks