HD 3850 agp overclocking problem

[bmw325i]

Hi i have a sapphire radeon hd 3850 512mb graphics card , when i attemp to overclock the card using the catalyst control centre ,the current gpu and memory speeds remains the same , although i adjusted the gpu and memory setting to 720/929 .

The current values stays the same at 300/829 mhz.

Some help please ??

 

[evongugg]

Try Rivatuner.

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http://www.tomshardware.com/reviews/overclocking-software,2059.html