On 4/1/06, William L. Maltby <BillsCentOS at triad.rr.com> wrote: > Re the overnight diag, are environmental conditions similar to when you > encounter problems? Temp, power "brown out", etc? Yep. The PC was custom-built less than 12 weeks ago, it's on a UPS only a couple of weeks older than that, the case power supply is supposed to handle up to twice as many drives as I have in there, and the IDE cables are brand new and firmly seated. > Secondly, are your current HD configurations consistent with what is > actually on the drive? AFAICT, yes. And the other drive on the same IDE cable, also a Maxtor, is working fine.