Radeon overlocking utility version 0.6e It tries to detect the reference clock (xtal) from the video BIOS, if this doesn't work you can specify it manually. Try 1432 or 2950 if the default value of 2700 does not show the correct frequency when using -i: rovclock -x 1432 -i Cards reported to work: Radeon 7500 Radeon 8500 Radeon 9000 Radeon 9100 Radeon 9500 (Pro) Radeon 9550 Radeon 9600 Mobility FireGL T2 Mobility Radeon 9600 M10 Radeon 9700 (Pro) Radeon X800XL Use the memory timing options with care and login via ssh to make changes. So you can revert them back if your screen corrupts: rovclock -t tRcdRD:7 Any comments, patches, bug reports to: se.witt@gmx.net