Software-Based Memory Testing

In this paper, we discuss the subject of software-based memory testing. By that we mean the testing of memory chips that are already installed in a final system. Such tests routinely occur as part of the hardware diagnostics that are executed shortly after power-on or reset. Memory tests need to be constructed carefully, so that they: (a) require as little time as possible to complete, (b) detect the most frequent problems without fail, and (c) provide useful information about the source of any problem that is found.

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