Chapter 4 Replacing Motherboard Assembly Components 4-21
FIGURE 4-13 FB-DIMM Layout
■ At minimum, Channel 0, FB-DIMM Slot 0 in all branches must be populated with
FB-DIMMS of the same density (same type).
■ In branches populated with more than one FB-DIMM (that is, in 8 and 16
FB-DIMM configurations), FB-DIMMs are addressed in pairs. Each pair must be
identical (same Sun part number).
■ Upgrading from a 4 FB-DIMM configuration requires moving two of the
FB-DIMMs to ensure matching pairs in all occupied slots. (See
FIGURE 4-14)
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