- Set GPU clock speed to auto in BIOS. (It was hard-set to max values before)
- Overclock CPU to 2 GHz (from 1.6)
- Change xorg.conf to version with explicit modelines.
And scaling mode to auto (rather than hard-setting it to lancosz 3 optimised for testing).
I might roll xorg back to an edid version, since otherwise 720p TV rips play at 1080i on my TV.
[alanwww1 - yes, ram is in dual channel mode by default.]