Main Memory - Fujitsu PRIMERGY BX620 S4 Options Manual

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Main Memory

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CAUTION!
Please observe the safety information in the chapter "Notes on Safety"
on page 13ff.
The server blade supports up to 32 GB main memory. It offers eight DIMM slots
which can be fitted with FBD533/ PC2-4200F memory modules (FBD = Fully
Buffered DIMM) in pairs.
The main memory is divided into two branches with two channels each. Two
DIMM slots are assigned to each of the four channels. The first slots of each
channel (logical slot 0) belong to memory bank 1; the second slots of each
channel (logical slot 1) belong to memory bank 2. The following figure shows
the distribution of the main memory from a logical point of view:
FB -DIMM 3
Bank 2
Bank 1
FB -DIMM 1
Figure 13: Main memory distribution (logical view)
Because in the basic configuration of the server blade the FB-DIMM 1 slots are
fitted with 1 GB, 2 GB, 4 GB or 8 GB memory, the memory can be expanded up
to three times for slots FB-DIMM 2, FB-DIMM 3 and FB-DIMM 4.
ECC with memory scrubbing and ChipKill™ is standard.
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Maximum performance is reached if all DIMM slots of a memory bank are
fitted with DIMM modules of the same capacity.
BX620 S4
FB -DIMM 3
FB -DIMM 1
C0 C1
Branch 0
Memory Controller
Options Guide
FB -DIMM 4 FB -DIMM 4
FB -DIMM 2 FB -DIMM 2
C2 C3
Branch 1
Slot 1
Slot 0
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