Tiger MP S2460 was [ot] Re: AMD testing
math at velocet.ca
Mon Nov 19 20:20:17 PST 2001
On Mon, Nov 19, 2001 at 09:28:01PM -0600, W Bauske's all...
> I must have gotten lucky. I built a test system, installed RH7.2 on it,
> and it works fine. I only put 2 512MB ECC DIMM's in it though so perhaps that's
> why I didn't have so much trouble. Also tried MP vs XP processors and both
> perform identically with this board. It's the fastest Athlon system I've tested.
Have you tested your computations for subtle errors on it, compared to
with the MP processors? As said below there can be errors that
are undetectable - how likely is this?
> "Donald B. Kinghorn" wrote:
> > ...
> > We'll it won't blow up with a kaboom ... According to the Mushkin web site
> > you can use 2 non-registered modules on the tiger 2460 ...
> > Now, I'll give my opinion. This board is poorly enginered and has been a
> > pain make suitable for scientific computing. I've had numerous memory
> > problems with these boards and most of the problems don't show up as obvious
> > crashes. They are the worst kind of errors -- corrupted results for large
> > jobs --- the kind of thing you might not catch without carefull testing. I
> > have found that I can not reliably use more than 3 memory modules (of any
> > type) on these boards. If you need a 1GB configuration DON'T USE 4 256MB
> > MODULES. Try 2 512MB or 2 256 and 1 512 module.
> > I have a cluster running reliably with no detectable errors under any load
> > (FINALLY) using the tiger 2460 with the 1.03 bios using 2 256 Crucial reg
> > ecc modules and 1 Infenion (64x4) reg ecc 512MB module on each board. You
> > need to ENABLE quick boot in the bios, use ECC SCRUB (maybe not essential),
> > use a recent (>2.4.11) kernel with a stable vm, use an append noapic in
> > lilo and do NOT use any mem= appends in lilo. All of these steps may not be
> > simultaneously needed but I am sick of fighting with this motherboard and
> > this configuration seems to work reliably. (your milage may vary)
> > I'm looking forward to seeing some better dual athlon boards come to the
> > market. Does any one have any info on when this may happen?
> > Best regards
> > -Don
> > >[i'm off list so please reply to me directly aswell as the list]
> > >Has any user of the Tiger MP S2460 had experience of what happens if you
> > >DON'T
> > >use registered memory? Will it blow up :-) ??
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Ken Chase, math at velocet.ca * Velocet Communications Inc. * Toronto, CANADA
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