On Jan 13, 2008 1:07 PM, Mikael Pettersson <mikpe@xxxxxxxx> wrote: > The fact that the problems occur on different disks on > different controllers driven by different drivers indicates > that it's not a disk, controller, or driver problem. > > I strongly suspect an underdimensioned or failing PSU. Thanks a lot for your clues. I bought a new PSU on Monday and didn't get any new disk failures for days. But last night the same time-outs occurred again on two disks. I guess I will try to replace the motherboard including the two SATA controllers next. Regards, Jim - To unsubscribe from this list: send the line "unsubscribe linux-ide" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html