Chapter 1. General description 25
Table 1-11 summarizes the maximum number of I/O drawers supported and the total number
of PCI slots that are available when expansion consists of a single drawer type.
Table 1-11 Maximum number of I/O drawers supported and total number of PCI slots
Table 1-12 summarizes the maximum number of disk-only I/O drawers supported.
Table 1-12 Maximum number of disk only I/O drawers supported
1.7 Comparison between models
The Power 770 offers configuration options, where the POWER7+ processor card can have
one of two processor speeds installed. In either case, the processor card is populated with
four single chip modules (SCMs). The card will contain one of the following processor
configurations:
Four 3-core SCMs running at 4.22 GHz
Four 4-core SCMs running at 3.8 GHz.
Both of these Power 770 models are available starting as low as four active cores, and
incrementing one core at a time through built-in CoD functions to a maximum of 48 active
cores, with the 4.22 GHz processor or 64 active cores with the 3.8 GHz processor.
The Power 780 also offers a four-socket POWER7+ processor card with one of two processor
configurations installed. These processor cards have the following specifications:
Four 4-core SCMs running at 4.42 GHz
Four 8-core SCMs running at 3.72 GHz
Both of these Power 780 models are available starting as low as four active cores, and
incrementing one core at a time through built-in CoD functions to a maximum of 64 active
cores, with the 4.42 GHz processor or 128 active cores with the 3.72 GHz processor.
System
drawers
Maximum
FC 5796
drawers
Maximum
FC 5802 and
FC 5877
drawers
Total number of slots
FC 5796 FC 5802 and FC 5877
PCI-X PCIe PCI-X PCIe
1 drawer 8 4 48 6 0 46
2 drawers 16 8 96 12 0 92
3 drawers 24 12 144 18 0 138
4 drawers 32 16 192 24 0 184
Server Maximum FC 5886 drawers Maximum FC 5887 drawers
Power 770 110 56
Power 780 110 56
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