Mod a dial that goes to 11 onto your AMD graphics card
Subject: General Tech | August 26, 2011 - 10:31 AM | Jeremy Hellstrom
Tagged: DIY, overclocking
One of the favourite features on the high powered graphics cards that Ryan has been reviewing this week is the ability to manually overclock the card while running it. Instead of having to use the built in software tools of the driver to first modify the speed and then running a test cycle it is possible to raise the frequency manually using controls on the card. The changes occur on the fly, without the software first testing to ensure stability which necessitates the presence of a reset button to take you back to stock frequencies. Thanks to Hack a Day you can now see how it is now possible to build your own paddle switch to do the same thing as the high end cards without having to spend the money or reach inside your case. Check out this project which will give you a paddle that not only upclocks your cards memory and GPU separately, it can also reset you back to default speeds if you go too far.
"[Fred] likes to squeeze every cycle possible out of his graphics card. But sometimes pushing the clock speed too high causes corruption. He figured out a way to turn a knob to adjust the clock speed while your applications are still running.
The actuator seen above is a Griffin Powermate 3.0. It’s a USB peripheral which is meant to be used for anything you can imagine. [Fred] uses an AutoHotKey script that he wrote to capture the input from the spinner, process that information, then adjust GPU clock speed in the background. Since the clock on his ATi Radeon 5800 can be adjusted using the AMD GPU clock tool, it’s an easy choice for this application. Now better graphics are at the tips of his fingers. See for yourself in the video after the break."
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