Chapter 4 PA-RISC Computer Systems - OpenPA.net

HP Integrity rx2600 & rx2620 Internals
4.40 HP Integrity rx2600 & rx2620
4.40.1 Overview
The rx2600 is the rack-designated sibling of the zx6000 workstation. They feature a very similar system
design and casing and can be both mounted in 2U of a 19″ rack. Also based on one or two Itanium 2
processors the rx2600 architecture differs from the zx6000 in that it is targeted for PCI-X I/O devices
and thus does not feature the AGP port of the workstation-oriented zx6000.
The rx2600 was later marketed as rx2600-2.
Time of introduction: 2002-2003 (rx2600)/December 2004 (rx2620) with prices at the time starting at
$7,300 (entry rx2600), $16,000 (average rx2600) to $33,000 (large rx2600).
4.40.2 Internals
CPU
rx2600/rx2600-2
rx2620
No. CPU Type Clock L1 (I/D) L2 (I/D) L3
1-2 Itanium 2 Deerfield?low-voltage 1.0 GHz 16/16 KB 256 KB 1.5 MB
1-2 Itanium 2 Madison 1.3 GHz 16/16 KB 256 KB 3.0 MB
1-2 Itanium 2 Madison 1.4 GHz 16/16 KB 256 KB 1.5 MB
1-2 Itanium 2 Madison 1.5 GHz 16/16 KB 256 KB 6.0 MB
No. CPU Type Clock L1 (I/D) L2 (I/D) L3
1-2 Itanium 2 Madison? 1.3 GHz 16/16 KB 256 KB 3.0 MB
1-2 Itanium 2 Madison? 1.6 GHz 16/16 KB 256 KB 3.0 MB
1-2 Itanium 2 Montecitodual-core 1.4 GHz 16/16 KB 1024/256 KB 12 MB
1-2 Itanium 2 Montecitodual-core 1.6 GHz 16/16 KB 1024/256 KB 18 MB
All caches are on-die (L1, L2 and L3).
Chipset
The systems are based on HP’s zx1 chipset, which consists of two main components — the MIO (memory
and I/O controller) and the IOAs (I/O adapters):
� Pluto zx1 MIO (memory and I/O controller) is the main chipset controller and connects the three
central system buses:
1. Processor bus (6.4 GB/s at 200 MHz DDR)
2. Two independent memory buses (each 4.25 GB/s)
3. Eight I/O channels (aggregate 4.0 GB/s, via the IOAs, see below)
The zx1 MIO also contains both memory and cache controllers.
� Seven Mercury zx1 IOAs (I/O adapters) connect the PCI-X slots and I/O devices to the zx1 MIO
with an aggregate bandwidth of 4.0 GB/s on eight 0.5 GB/s channels
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