[Nottingham] Spontaneous errors in RAM - How often?

Martin martin at ml1.co.uk
Thu Jul 20 13:48:26 BST 2006

Michael Erskine wrote:
> On Thursday 20 July 2006 11:45, ForkBombFluf wrote:
>>On Thu, 20 Jul 2006, Martin wrote:
>>>For 1GByte of PC RAM (non-ECC), what is the probability of a bit-flip
>>>due to radiation, cosmic rays, or whatever?
> http://en.wikipedia.org/wiki/Dynamic_RAM#Errors_and_error_correction

Good link, thanks.

"A reasonable rule of thumb is to expect one bit error, per month, per
gigabyte of memory. Actual error rates vary widely.[ecc]"

Errrrrr - ouch!

Looks like ECC is a good idea (on Linux systems at least).


[ecc] http://en.wikipedia.org/wiki/Dynamic_RAM#endnote_ecc_ratesa

Martin Lomas
martin at ml1.co.uk

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