Can't OC my 4850??

[B&W]

Hello, when I open up my catalyst settings the ATI overdrive settings are disabled. I've downloaded ATI tool but everytime it opens up it just says atitool has encountered a problem and needs to close.

I've got the latest drivers and the computer works fine in everything. Whats going on here?

 

[spleenharvester]

Could try GPUTool's beta, might not work but I OC'ed my 4870 fine off that.

Maybe OCing is BIOS locked on that card somehow, though I haven't heard of it before.

 

[fruman23]

Give MSI afterburner a try also

 

[Surveyor]

Hello, when I open up my catalyst settings the ATI overdrive settings are disabled. I've downloaded ATI tool but everytime it opens up it just says atitool has encountered a problem and needs to close.

I've got the latest drivers and the computer works fine in everything. Whats going on here?

Just use the Catalyst Control Centre.

Go into ATI Overdrive and unlock overclocking. I think you need to click on the padlock.