Importance

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Abstract

A computer system and a method used to test and repair defective memory portions of memory devices located on a memory module. The computer system includes a memory hub controller coupled to a plurality of memory modules each of which includes a memory hub and a plurality of memory devices. The memory hub comprises a self-test module that determines the locations of defective memory locations of the memory devices. A repair module also included in the memory hub uses the locations of defective memory portions to create a remapping table. The remapping table redirects accesses to the defective locations of the memory devices to non-defective memory locations. Each time the memory hub receives a memory request from a memory access device, the memory hub checks the memory location to which the access is directed, and, if necessary, redirects the memory access to a non-defective location.

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First Claim