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2-16 Chapter 2: Hardware information
2.4.3 Memory sparing technology
The Intel
®
Seaburg chipset supports the memory sparing technology. Refer to theurg chipset supports the memory sparing technology. Refer to the chipset supports the memory sparing technology. Refer to the
below sections:
Memory Sparing :
At conguration time, a DIMM rank is set aside to replace a defective DIMM rank.
When the error rate for a failing DIMM rank reaches a pre-determined threshold,
the memory sparing function will issue an interrupt and initiate a spare copy. At the
completion of the copy, the failing DIMM rank is disabled and the “spared” DIMM
rank will be used in its place.
• The DIMM rank with the largest size will be assigned as spare rank. Data
can only be copied from a smaller sized rank to a larger sized one.
• A DIMM can contain only one or two ranks. To support sparing function, a
DIMM channel should contain at least two ranks.
• When sparing function is enabled, the usable memory size will reduce then
size of the spare ranks.