AMD testing (fwd)

[Hereward Cooper]

> > I had a problem with a Tyan 2460 that I got when they first
> > came out. It
> > seems that the board actually only supports 3 memory modules
> > even though it
> > has 4 slots. (??!!) I had the board in a cluster with several
> > other Tyan 2462
> > board machines all with 4 256MB mem modules. We were doing
> > testing on the
> > system and the machine with the 2460 was giving garbage results for a
> > calculation that used about 700MB of memory. All smaller jobs
> > had tested OK.
> > I couldn't find the problem (went through different memory,
> > kernels etc..)
> > then I started thinking ... why does Tyan say the board only
> > supports 3GB of
> > memory ... sure enough, when I took 1 module out of the 2460
> > machine, it ran
> > the big test job correctly. I tested this on a newer order of
> > the mother
> > boards and they seemed to be OK. The markings on the
> > motherboard still say
> > "A" but it looks a little different, the old one had dots
> > around it. (?) I
> > don't know if this is an isolated problem, just a bad board
> > ... ??? However,
> > I have seen other complaints about memory problems with the
> > 2460. Also, I
> > discovered that the sockets are "REALLY" fussy about how you
> > insert the
> > modules. If you don't get them just right memtest86 will
> > generate errors on
> > the modules even though they test good on other boards.  I
> > assume you had 4
> > 512MB modules in your machine I suggest you try leaving DIMM4
> > empty and try
> > testing the system again.
> >
> > I let Tyan know about the problem but haven't received a response.

The manual that comes with the board does have a table showing the possible
combinations of memory, but it does state it doesn't list them all. Buts it
still gives you an idea.

Thanks,

Hereward