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Date:      30 Dec 1999 01:47:36 +0100
From:      naddy@mips.rhein-neckar.de (Christian Weisgerber)
To:        freebsd-hardware@freebsd.org
Subject:   Re: ECC RAM useless with FreeBSD?
Message-ID:  <84ea38$1dk9$1@bigeye.rhein-neckar.de>
References:  <8070C3A4E99ED211A63200105A19B99B317471@mail.edifecs.com> <19991228215756.A94267@panzer.kdm.org> <386A4B9D.A9F89749@echidna.com>

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In article <386A4B9D.A9F89749@echidna.com>,

> Some memory errors are transient, radiation-induced events. The
> likelihood of such errors is increased by the decreasing storage
> cell charge employed with increasing memory density.  This problem
> will be more serious at high altitude because of increased cosmic
> radiation. [...] Such errors are not memory chip problems per se,
> and could be a good reason to enable ECC when available.

ISTR recall that c't magazine examined that question some time ago
and came to the conclusion that radiation-induced errors are absurdly
rare (one each ten years or so?) compared to rather more earthly
problems.

-- 
Christian "naddy" Weisgerber                  naddy@mips.rhein-neckar.de



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