I wanted to let you know that version 1.3 of Hash Auger now supports both default overclock settings for each device as well as custom overclock settings for specific algorithms on each device.  Using your example, you could set a lower overclock just for x16r.  You can also set more aggressive overclocks for other algorithms that can handle more than your current default. While Afterburner was a good suggestion, it ended up having some limitations and I went with another solution that I bundled with my app to minimize installation and setup tasks. If you have a few cards, you can setup your algorithm-specific overclocks on one card and then use the Copy From feature on the other cards instead of typing everything in again and again.  If you have any questions or comments regarding this new feature, let me know.