AGP 6600GT underclocking itself

[WaterCannon]

So I have an old AGPx8 Club 3D 6600GT in my computer. About a year ago, I started getting This error. If I remember correctly, they started coming out of the blue...

Well I kinda lived with it as it couldn't be fixed. We swapped PSUs to more powerful ones, tried different drivers, spent days on google to find a fix - no help. Everything seemed to be connected correctly, including the extra power cable.

Recently it really started to bug me as the error popped up every time I turned on the computer. So I really looked into it again and I noticed that the molex connected to the card was split to an optical drive. I rearranged the wiring so that the graphics card would be the only one attached to that particular cable. The errors ceased!

Now I noticed that my GPU Core and Memory clocks were still lowered. (300/450 against the 500/900). The underclock was indentified using the Nvidia MonitorView. I would like to get it back to it's rated speed. I tried using the "overclock" feature on Nvidia Control Panel to overclock to 501/907 or something similar. When I press "Apply" it goes back to 500/900 which is actually 300/450.

I really would like to get this fixed even though im building a new rig in just a couple of days. I do appreciate your help .

 

[Ares202]

Try using rivatuner

http://www.guru3d.com/index.php?page=rivatuner

 

[WaterCannon]

RivaTuner worked. Thanks Ares202

 

[mindless1]

You don't want to use Rivatuner.

Your card runs at a lower 2D core speed intentionally, this is not related to the prior popup message about power but rather what it is designed to do.

When you run a game or whatever, when it goes into 3D mode it raises the GPU speed and voltage on it's own through the driver. In either 2D or 3D it keeps the same 450MHz (900 in DDR terms) memory clock so both numbers you saw were correct.

There's nothing to gain by running the card at the 3D speed in 2D uses, it'll just run hotter and use more power.