Memory Features - IBM Power 720 Overview

Table 1-6 lists the available processor features for the Power 720.
Table 1-6 Processor features for the Power 720
Feature code
EPCK
EPCL (CCIN 54B0)
EPCM
The Power 740 requires that one or two processor modules be installed. If two
processor modules are installed, they must be identical. Table 1-7 lists the available
processor features.
Table 1-7 Processor features for the Power 740
Feature code
EPCP
EPCQ
EPCR

1.4.6 Memory features

In POWER7+ processor-based systems, DDR3 memory is used for throughout. The
POWER7+ DDR3 memory uses a memory architecture to provide greater bandwidth and
capacity. This enables operating at a higher data rate for larger memory configurations.
Memory in the Power 720 and 740 systems is installed into memory riser cards. One memory
riser card is included in the base system. The base memory riser card is not listed as a
feature code in the configurator. Additional memory riser cards, feature FC EM01, can be
installed up to a maximum of two per processor module. Each memory riser card provides
eight DDR3 DIMM slots. DIMMs are available in capacities of 4 GB, 8 GB, 16 GB, and 32 GB
at 1066 MHz and are installed in pairs.
Table 1-8 lists available memory features on the systems.
Table 1-8 Summary of memory features
Feature code
EM08
EM4B (CCIN 31FA)
a
EM4C
a
EM4D
a. A Power 720 system with 4-core processor module feature FC EPCK cannot be ordered with
the 32 GB memory feature FC EM4C or 64 GB memory feature FC EM4D.
For performance optimization, install memory evenly across all memory riser cards in the
system. Balancing memory across the installed memory riser cards allows memory access
in a consistent manner and typically results in the best possible performance for your
configuration. However, balancing memory fairly evenly across multiple memory riser
cards, compared to balancing memory exactly evenly typically has a small difference in
performance.
10
IBM Power 720 and 740 Technical Overview and Introduction
Processor module description
4-core 3.6 GHz POWER7+ processor module
6-core 3.6 GHz POWER7+ processor module
8-core 3.6 GHz POWER7+ processor module
Processor module description
6-core 4.2 GHz POWER7+ processor module
8-core 3.6 GHz POWER7+ processor module
8-core 4.2 GHz POWER7+ processor module
Feature capacity Access rate
8 GB 1066 MHz
16 GB 1066 MHz
32 GB 1066 MHz
64 GB 1066 MHz
DIMMs
2 x 4 GB DIMMs
2 x 8 GB DIMMs
2 x 16 GB DIMMs
2 x 32 GB DIMMs