> I've turned AHCI on in BIOS recently as I've install a WD Raptor, > and re-installed F10 - would that affect filesystems on other > drives - is AHCI buggy ? That would show up very very fast for lots of people > > I'm using Fedora 10 64bit, Asus P5Q-E Motherboard, > Q9950 ( stock speed ), 8Gb Corsair memory Try booting with mem=4G as a first experiment.