it could be your ecache
I had very similar errors like yours on alphastation 500/333
and te problem was a bad ecache module.
they coudl nto be changed (motherboard embedded) so I just had to throw my
alpha away but my error code was different from 660, so maybe it;s not the
case of your problem, hope so for you.

Rick


On Sat, 13 Sep 2003 kpneal@pobox.com wrote:

> On Sat, Sep 13, 2003 at 01:30:35AM -0400, kpneal@pobox.com wrote:
> > I'll see if I can get the initial panic message next time it
> > happens.
>
> Well, that was easy. I have an mfs /tmp.
>
> % dd if=/dev/zero of=/tmp/blarg
>
> Warning: received processor correctable error.
> Warning: received processor correctable error.
> Warning: received processor correctable error.
> Warning: received processor correctable error.
>
> unexpected machine check:
>
>     mces    = 0x1
>     vector  = 0x670
>     param   = 0xfffffc0000006068
>     pc      = 0xfffffc000051ca74
>     ra      = 0xfffffc0000300ac8
>     code    = 0x98
>     curproc = 0xfffffc00051245c8
>         pid = 119, comm = mount_mfs
>
> I'll try rearranging memory tomorrow. Oh, and the 'reboot' command
> in ddb gave me another "correctable" error followed by a hang.
>
> *sigh*
>
> This is what happens when a household member decides to show who is in
> charge by opening the back door to let the cats get fresh air. Having
> outside air come in in the middle of the summer thereby bringing the
> temperature in the computer room into the mid-90's (humid) just can't be
> good for machines. I can imagine the temperature in the box being 10+
> degrees higher than the room air temp, placing it dangerously close to
> the outside of the operational bounds.
>
> Said household member is now removed and isn't coming back. Now I
> just have to clean up the damage.
>
> I'm going to bed.
>
> Thanks for the help. Let's all cross our fingers for bad memory
> and not a bad board.
> --
> Kevin P. Neal                                http://www.pobox.com/~kpn/
>
> "What is mathematics? The age-old answer is, of course, that mathematics
>  is what mathematicians do." - Donald Knuth
>
>