Fb-Dimm Fillers - Sun Microsystems Sun Fire X4450 Service Manual

Start with the slots with white handles (slot 0 of each channel).
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Start with largest modules (4 GB then 2 GB...) if not all same capacity.
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Both Channels from the same branch must contain the same number of DIMMs
(populated by pairs of identical DIMMs).
TABLE 4-1
Example 1
(10 DIMMS – 5 Pairs):
3 Pairs in Branch 0
Channel A (Branch 0): 3 DIMMs
Channel B (Branch 0): 3 DIMMs
2 Pairs in Branch 1
Channel C (Branch 1): 2 DIMMs
Channel D (Branch 1): 2 DIMMs
4.1.2.2

FB-DIMM Fillers

FB-DIMM fillers are installed in all unoccupied DIMM sockets. All sockets must be
occupied by either a filler or an FB-DIMM. When FB-DIMMS are added, remove the
fillers. When FB-DIMMS are removed, add extra fillers. Always place fillers in empty
sockets.
FIGURE 4-3
4-6 Sun Fire X4450 Server Service Manual • November 2009
Sun Fire X4450 DIMM Guideline Examples
Fillers for FB-DIMM Slots
Example 2
(Minimum Configuration – 1 Pair)
1 Pair in Branch 0
Channel A (Branch 0): 1 DIMMs
Channel B (Branch 0): 1 DIMMs
Branch 1 Is Empty
Channel C (Branch 1): 0 DIMMs
Channel D (Branch 1): 0 DIMMs