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Error - correcting code ( ECC ) RAM is essential for servers because it prevents soft errors from occurring. Soft errors occur when the bits
Errorcorrecting code ECC RAM is essential for servers because it prevents soft errors from occurring.
Soft errors occur when the bits stored in a computer's RAM suddenly flip unexpectedly. For example,
alpha particles emitted during radioactive decay or even cosmic rays cause bit flips by altering the
state of the RAM.
During the May elections in Belgium in May a bit flips was suspected of causing extra votes
favoring a candidate.
In the s IBM estimated that in a month, one bit flip occurs for every MB of RAM. If a simulation
needs GB of RAM to run for days, what is the probability that at least one bit flip will occur
while the simulation is running?
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