HP B160L Manual do Utilizador Página 272

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HP N4000 (rp7405/rp7410)
4.36 HP N4000 (rp7405/rp7410)
4.36.1 Overview
The rp7405/rp7410 N4000 servers are up to 8-way multiprocessing servers and the smallest HP sys-
tems which can be partitioned into logical servers (two nPartitions). Based upon the same 10U rack-
mountable chassis as their rp7400/N4000 brethren, the newer rp7405 and rp7410 are built around
a completely overhauled system and I/O architecture. The “Core Electronic Complex” is a modified
version of the Superdome’s cell-based system architecture, limited to two cells, which each contain up
to four processors, sixteen memory slots and the central chipset the cell controller (CC). These newer
N4000s feature a very large amount of system and I/O bandwidth: 16GB/s CPU, 8GB/s memory, 8GB/s
cell-to-cell and 8.5GB/s I/O bandwidth (all maximum aggregate values).
The rp7405 was apparently an entry-level version of the rp7410 based on the same hardware and
with the same capabilities but shipped in smaller configurations. Upgrades to a “full” rp7410 were later
possible, probably including a modified firmware for unlocking the full functionality.
Introduced: 1999-2000
4.36.2 Internals
CPU
The rp7405 and rp7410 support from two to eight processors.
They are based on different system boards with different model numbers the same basic architecture
but with differences relating to the type and number of processors.
A6752A (rp7410) supports 650MHz, 750MHz and 875MHz processors
A7111A (two-way rp7405) supports 650MHz and 750MHz processors
A7112A (four-way rp7405) supports 650MHz and 750MHz processors
A7113A (eight-way rp7405) supports 650MHz and 750MHz processors
Processor types are indicated with the following suffixes:
-6X: PA-8700 650MHz with 768/1536KB on-chip I/D L1 cache each
-7X: PA-8700 750MHz with 768/1536KB on-chip I/D L1 cache each
-8X: PA-8700+ 875MHz with 768/1536KB on-chip I/D L1 cache each
-9X: PA-8800 (dual-core) 900MHz/1.0GHz with 1.5/1.5MB on-chip L1 and 32MB off-chip L2
cache each
PA-8900 (dual-core) 800MHz-1.1GHz with 1.5/1.5MB on-chip L1 and 64MB off-chip L2 is
probably also possible (suffix and affected models unknown)
Itanium 2/IA64 processors are probably also possible on some models
It is unclear which models support the -8X, -9X, PA-8900 and IA64 processors
There are two CPU/memory cell boards, with each four processor sockets.
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