H Andrew, Mathieu, Stephen and Axel, Tks for your advice. - snip - > I have an x86_64 system (Athlon 64 2800+, 1 GB > DDR400RAM) running FC2. > Things are working pretty well but I have a > persistent kernel panic > under load. I will probably upgrade to FC3 when > available to see if the > kernel changes fix the problem. You may want to wait > a bit... There is no urgent need for this upgrade and the PC concerned is for testing purpose, as workstation or/and server, not for production. Actually AMD Athlon can do job. But considering the life time of this upgrade I shed my eyes on AMD 64. B.R. Stephen