Issue overclocking 2.2Ghz MBP's GPU on 169.04 in XP.

For those of you using the same driver and Rivatuner 2.06, this is the problem I'm facing.

Rivatuner shows 3 levels of GPU acceleration: 2D mode, 3D low power, and 3D performance. This seems fine and dandy until I start a game while running the Hardware Monitor feature of Rivatuner which measures core/memory clocks over time and realize there's a 4th level that I can't control.

Let's say I overclock the 3D performance mode to 550/750. I start a game, run it for a few minutes, and quit to check the hardware monitor. Instead of seeing that for the past few minutes, core/memory clocks have been 550/750, they were instead 500/635. As soon as I quit the game, however, the clocks go up to 550/750 until the fans slow down, after which it reverts to the 2D clocks.

Changing the overclock to something like 525/725 yields the same issue. The clocks remain 500/635 during the time in-game and then goes up to 525/725 right after I quit and last for a while.

And no, the 3D low power clocks are much lower, so it's not using those settings.

Basically, what this means is that I can't overclock, or at least not with Rivatuner. I'm going to try and find another utility that will hopefully work. Until then, has anyone else encountered similar problems? I'll post some pictures if it will hlp illustrate my point.

 

If this helps at all, it means my 3D mark scores remain constant even while overclocking the 3D performance tab's clocks because that unseen 4th level is the profile that is active. Other people seem to be overclocking just fine.