Nvidia Idle temperatures and windowsblinds

Whenever I switch to a non-aero theme, windowsblinds, or my nvidia geforce drivers, disables the auto-throttling of my Geforce GTX480x2 SLI video cards. This results in the GPUs not being able to scale themselves down from 700 to 405mhz, and again from 405-51 mhz depending on whether or not I have activity in my windows. The feature works fine for windows classic and aero themes.

The net result of this is that my idle temps for my SLI setup skyrocket using windows blinds, from around 53C with default windows themes, to over 70C with windows blinds. I realize that 70C is well within the cards limits, but it still means that I have to deal with the heat output in my room, which can become incredibly uncomfortable when my PC is pumping out air at 160F... it gets hot in here.

I realize that windows blinds makes everything look cute, but I am beyond confident that id doesn't require the full 700mhz of both of my video cards to function adequately. So what I want to know is, who's fault is it? Is this an issue with the way windows blinds interacts with the OS, or is this an nvidia driver issue? Has this issue been reported before? I couldn't find any information on it.

Thanks in advance for your help!

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Reply #1 Top

WindowBlinds is not capable of altering your video card clock speed so this would appear to be a bug in your nvidia drivers.

This is not something that has been reported before and I know from experience that the nvidia drivers are typically over keen on power reduction so I cannot explain why that would change with WB when WB doesn't even directly use the 3D hardware apart from when you have a 3D accelerated browser like FireFox open.