Memory Features - IBM BladeCenter PS700 Technical Overview And Introduction

POWER7 Intelligent Threads Technology enables workload optimization by selecting the
most suitable threading mode (Single thread (per core) or Simultaneous Multi-thread 2 or 4
modes also called 2-SMT and 4-SMT). The Intelligent Threads Technology can provide
improved application performance. In addition, POWER7 processors can maximize cache
access to cores, improving performance, using Intelligent Cache technology
POWER7 offers Intelligent Energy Management features that can dramatically and
dynamically conserve power and further improve energy efficiency. These features enable
the POWER7 processor to operate at a higher frequency if environmental conditions permit,
for increased performance and performance per watt. Alternatively, if user settings permit,
these features allow the processor to operate at a reduced frequency for significant energy
savings.
The key processor feature on each of the P700 blade server are as follows:
The PS700 blade server contains one four-core, 64-bit POWER7 3.0 GHz processor with
256 KB per processor core L2 cache and 4 MB per processor core L3 cache. No
processor options are available.
The PS701 blade server contains one eight-core, 64-bit POWER7 3.0 GHz processor with
256 KB per processor core L2 cache and 4 MB per processor core L3 cache. No
processor options are available.
The PS702 blade server is a double-wide that supports two eight-core, 64-bit POWER7
3.0 GHz processor with 256 KB per processor core L2 cache and 4 MB per processor
core L3 cache. No processor options are available.

1.5.7 Memory features

The PS700, PS701, and PS702 blade servers uses industry standard VLP DDR3 memory
DIMMs. Memory DIMMs must be installed in matched pairs with the same size and speed.
For details about memory subsystem and layout, see 2.4, "Memory subsystem" on page 46.
The PS700, PS701, and PS702 blade serves have eight, 16, and 32 DIMM slots respectively.
Memory is available in 4 GB or 8 GB DIMMs, both operating at a memory speed of 1066
MHz. The memory sizes can be mixed within a system. You can use pairs of 4 GB DIMMs
with pairs of 8 GB DIMMs.
The POWER7 DDR3 memory uses a new memory architecture to provide greater bandwidth
and capacity. This enables operating at a higher data rate for larger memory configurations.
For details, see 2.4, "Memory subsystem" on page 46. Table 1-7 shows the DIMM features.
Table 1-7 Memory DIMM options
Feature code
8208
8209
Notes:
The DDR2 DIMMs used in JS23 and JS43 blade servers are not supported in the Power7
blade servers.
The announcement letter for the POWER7 processor-based blades incorrectly lists the
memory speed of the 8 GB DIMMs to be 800 MHz.
DIMM size Quantity
4 GB 2
8 GB 2
Chapter 1. Introduction and general description
Speed
1066 MHz
1066 MHz
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