[Beowulf] ECC support on motherboards?

Perry E. Metzger perry at piermont.com
Mon May 12 17:58:35 PDT 2008

Joe Landman <landman at scalableinformatics.com> writes:
>> I've been reading spec sheets, and they often don't tell you, which is
>> rather annoying. Thus my question.
> I just randomly selected 2 motherboards from 2 different vendors and
> on both spec sheets, they clearly defined which memory they took.

Oh, sheets will tell you that they *take* ECC memory, but long
experience says that the motherboards that actually properly do ECC
scrubbing are a subset -- some boards will accept the extra ECC bits
and do nothing with them! Generally speaking, the only reliable way
I've found to determine if the ECC stuff works is to look at the BIOS
ECC settings, but often that info seems to be missing from the

Anyway, I was asking for a reason. :)

Perry E. Metzger		perry at piermont.com

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