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Table 2-6 on page 34 shows the following pairs:
First CDIMM pair is identical and plugged into P2-C16 and P2-C17
Second CDIMM pair is identical and plugged into P2-C24 and P2-C25
Third CDIMM pair is identical and plugged into P2-C32 and P2-C33
Fourth CDIMM pair is identical and plugged into P2-C40 and P2-C41
Fifth CDIMM pair is identical and plugged into P2-C12 and P2-C13
Sixth CDIMM pair is identical and plugged into P2-C20 and P2-C21
Seventh CDIMM pair is identical and plugged into P2-C28 and P2-C29
Eighth CDIMM pair is identical and plugged into P2-C36 and P2-C37
Ninth CDIMM pair is identical and plugged into P2-C14 and P2-C15
Tenth CDIMM pair is identical and plugged into P2-C22 and P2-C23
Eleventh CDIMM pair is identical and plugged into P2-C30 and P2-C31
Twelfth CDIMM pair is identical and plugged into P2-C38 and P2-C39
Thirteenth CDIMM pair is identical and plugged into P2-C10 and P2-C11
Fourteenth CDIMM pair is identical and plugged into P2-C18 and P2-C19
Fifteenth CDIMM pair is identical and plugged into P2-C26 and P2-C27
Sixteenth CDIMM pair is identical and plugged into P2-C34 and P2-C35
2.5.4 Memory activations
Several types of Capacity on Demand capability are available for processors and memory on
the Power E850C server. All the memory CDIMMs in a Power E850C system are capable of
capacity upgrade on demand, and must have a minimum of 50% of their physical capacity
activated. A minimum of 128 GB of memory must be activated on each system. The
remaining installed memory capacity can be activated as Capacity on Demand, either
permanently or temporarily.
Initial activations of memory resources must meet the minimum requirement of 50% of all
installed memory, or 128 GB, whichever is higher. The maximum initial order for activations is
the entire installed memory capacity.
Initial memory activations can be ordered in quantities of 1 GB (#EMAA) and 100 GB
(#EMAB). This memory capacity remains permanently active.
Any memory resources that are installed but not activated as part of the initial order are
available for future use of the Capacity on Demand features of the Power E850C.
For more information about Capacity on Demand and activation requirements, see 2.6,
"Capacity on Demand" on page 40.
2.5.5 Memory throughput
The peak memory and I/O bandwidths per system node have increased over 300% compared
to the previous generation POWER7 processor-based servers, providing the next generation
of data-intensive applications with a platform capable of handling the needed amount of data.
Warning: All bandwidth figures listed in the section are theoretical maximums, and are
based on the nominal clock speeds of the processors listed. Because clock speeds can
vary depending on power-saving mode and server load, these bandwidths are provided for
information only.
Chapter 2. Architecture and technical overview
35
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