Chapter 4 PA-RISC Computer Systems - OpenPA.net

HP 9000/K-Class Internals
4.31 HP 9000/K-Class
4.31.1 Overview
The K-Class Hawk servers except the K100 are multiprocessor systems. The K370/K380 and K570/K580
are able to support up to six-way multiprocessing, whereas the K2x0 and K4x0 support up to fourway
SMP. A typical K-Class server consists of a System Processing Unit (SPU), system console and an
optional Uninterruptible Power Supply (UPS). These units then are packaged in a 19″ rack.
� The first number after the “K” — 1, 2, 3, 4 or 5 — indicates the general type:
– K100 are single-CPU with limited expandability
– K2x0 take up to four CPUs, better expandability (more RAM) than K100
– K3x0 take up to six CPUs, more I/O slots than K2x0
– K4x0 take up to four CPUs, more I/O slots and partially more RAM than K2x0
– K5x0 take up to six CPUs, different I/O configuration than K3x0
� The latter numbers [00, 10, . . . , 80] indicate the “internal” features, like CPU and chipset.
Model numbers and introductions dates:
4.31.2 Internals
CPU
System Model number Introduced
K100, K200, K400 HP 9000/809, HP 9000/819, HP 9000/829 March 1995
K210, K410 HP 9000/839, HP 9000/849 September 1995
K220, K420 HP 9000/859, HP 9000/869 March 1996
K250, K450 HP 9000/802, HP 9000/804 August 1996
K260, K460 HP 9000/879, HP 9000/889 August 1996
K370, K570 HP 9000/898, HP 9000/899 May 1997
K380, K580 HP 9000/800 February 1998
� K100: PA-7200 100 MHz with 256/256 KB off-chip I/D L1 and 2 KB on-chip “assist” L1 cache
� K200/K400: 1-4 PA-7200 100 MHz with 256/256 KB off-chip I/D L1 and 2 KB on-chip “assist” L1
cache each
� K210/K410: 1-4 PA-7200 120 MHz with 256/256 KB off-chip I/D L1 and 2 KB on-chip “assist” L1
cache each
� K220/K420: 1-4 PA-7200 120 MHz with 1024/1024 KB off-chip I/D L1 and 2 KB on-chip “assist” L1
cache each
� K250/K450: 1-4 PA-8000 160 MHz with 1024/1024 KB off-chip I/D L1 cache each
� K260/K460: 1-4 PA-8000 180 MHz with 1024/1024 KB off-chip I/D L1 cache each
� K370/L570: 1-6 PA-8200 200 MHz with 2048/2048 KB off-chip I/D L1 cache each
� K380/K580: 1-6 PA-8200 240 MHz with 2048/2048 KB off-chip I/D L1 cache each
The 2 KB on-chip “assist” cache on systems with a PA-7200 is not really a true cache.
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