Sudden and unexplained reboots

[Carlos Reategui]

I would suggest http://www.memtest86.com
I had some bad memory on a machine that drove me nuts for several months.  I
would suggest letting it run through the entire default set of tests.  My
problem did not show up until test 6 or 7.  Since I discovered this I run it
religiously on any new machine or one that I have changed the memory on.

-Carlos

PS. Sorry if this has been suggested already. I saw the thread midstream.

<snip>
>
> I shouldn't speculate on causes until you have more idea what's happening,
> but this does smell like failing hardware.  In your position, I'd be
> thinking about swapping RAM and maybe the power supply.
>
>