Specifications

Chapter 1. General description 25
Table 1-11 summarizes the maximum number of I/O drawers supported and the total number
of PCI slots 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 can have one of
two different processor cards installed. Both contain two Single Chip Module (SCM) cards.
These cards can contain the following processor configurations:
򐂰 Two socket card: Eight cores at 3.3 GHz
򐂰 Two socket card: Six cores at 3.72 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 3.72 GHz processor or 64 active cores with the 3.3 GHz processor.
The Power 780 offers configuration options where the POWER7 processor can have one of
two processor cards installed. These are either a two-socket SCM card or four SCM cards.
These processor cards contain the following processor configurations:
򐂰 Two socket card: Eight cores at 3.92 GHz (MaxCore mode) or four cores at 4.14 GHz
(TurboCore mode)
򐂰 Four socket card: Six cores at 3.44 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 3.92 GHz processor or 96 active cores with the 3.44 GHz processor.
System drawers Max #5796
drawers
Max #5802 and
#5877 drawers
Total number of slots
#5796 #5802 and #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 Max #5886 drawers Max #5887 drawers
Power 770 110 56
Power 780 110 56