The 500au's have a pretty buggy IDE controller (the CMD646). You might want to try a kernel that has not been compiled generic IDE support to stop automatic enabling of DMAs, etc. I know stock 2.4.21 dies if I compile in CMD support. -T -- Tyson Whitehead (-twhitehe@uwo.ca -- WSC-) Computer Engineer Dept. of Applied Mathematics, Graduate Student- Applied Mathematics University of Western Ontario, GnuPG Key ID# 0x8A2AB5D8 London, Ontario, Canada