I'd agree about the hardware. My only crashes were the result of bad power, and, in another instance, a boot disk that had gradually gotten corrupted. (Power problem turned out to be a power cord with a broken internal wire; when disturbed only slightly, it would kill, then re-establish power to the server). Including flaky memory, those are 3 good places to look. And if you're on a UPS, substitute a different one and a different power cord, just to be certain.
Michael Smith wrote:
>
> I'd REALLY suspect hardware here, specifically flaky RAM.