
Chapter 2. General description 11
Table 2-1 on page 11 provides a general overview of the processor features of
the IBM BladeCenter JS23 and JS43.
Table 2-1 Processor features
Table 2-2 on page 11 provides a general overview of the memory features of the
IBM BladeCenter JS23 and JS43.
Table 2-2 Memory features
Table 2-3 on page 12 provides a general overview of the storage features of the
IBM BladeCenter JS23 and JS43.
Component Features
Microprocessor JS23: Two dual-core (4-way) 64-bit
POWER6 microprocessors; 4.2 GHz
JS43: Two additional dual-core (total
8-way) 64-bit POWER6
microprocessors; 4.2 GHz
Support for Energy Scale thermal
management for power
management/oversubscription
(throttling) and environmental sensing
Component Features
Memory JS23: Dual-channel (DDR2) with 8 very
low profile (VLP) DIMM slots (maximum
64 GB)
JS43: Dual-channel (DDR2) with 16 VLP
DIMM slots (maximum 128 GB)
Supports 2 Gigabyte (GB), 4 GB, and 8
GB DDR2 DIMMs
Supports 2-way interleaved, DDR2,
PC2-4200 or PC2-5300, ECC SDRAM
registered x4, memory scrubbing, Chipkill,
and bit steering DIMMs
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