Help with ATI Catalyst overclocking?

In the "Overdrive" panel, you can adjust the sliders to change the core and memory clock speeds. It registers in the "requested" box but it will not show the requetsed value as the "current VPU clock". Are the requested clock speeds what the VPU is currenlty using, and if so, why doesn't it register in the "current VPU clock" box?

When using the automated clock configuration utility, I can see the "current VPU clock" value does indeed increase, but as soon as the utility is finished the "current VPU clock" value returns to the original clock speeds while the "requested" value remains where the utility leaves it.

If anyone can shed some light on this it would be much appreciated. Thanks.
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More about help catalyst overclocking
  1. I noticed this same issue. I think it might be throttling speeds when not under a load, but I have not had a chance to test it yet. If someone could shed some light on this that'd be awesome.
  2. I found a post on that might have the answer. I have a hd2600 pro and I think the CCC doesn't want me to OC it otherwise it'd be the exact same thing as an hd2600xt. Here's the post that talks about a similar situation.
  3. Hi i just got a new PC and am having the same problem, i know this post is about 2 years old but if you solved you problem any advice would be much appreciated.
    AMD Phenomx4 9650
    Powercolor 4850 512mb ddr3
    MSI K9A2 CF-F Mobo

    Thx you
  4. Replace CCC (use download Option #2, Display driver only) with ATI Tray Tools.
  5. theAnimal said:
    Replace CCC (use download Option #2, Display driver only) with ATI Tray Tools.

    Thank you ill give it a try.
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