Chapter 4 PA-RISC Computer Systems - OpenPA.net

HP 9000/715 Internals
4.5 HP 9000/715
4.5.1 Overview
The HP 9000/715 range of computers are divided in two different series:
� The 715/33, 715/50 and 715/75 were the first 715 series, with PA-7100 processors and an older
chipset/mainbus combination, ASP.
� The 715/64, 715/80, 715/100 and 715/100 are younger and technically identical to the 712 workstations.
They were introduced between 1992 (first models) and 1994-1995 (second generation). Introduction
and prices:
4.5.2 Internals
CPU
Table 4.15: HP 9000/715 workstations, Introduction dates and Prices
Model Introduced Price (USD)
715/33 1992 $4,995
715/50 1992 $11,895
715/64 1994 $10,000
715/80 1994 $13,000
715/100 1994 $19,000
715/100XC 1995 $21,000
� 715/33: PA-7100 33 MHz with 64/64 KB off-chip L1 I/D cache
� 715/50: PA-7100 50 MHz with 64/64 KB off-chip L1 I/D cache
� 715/64: PA-7100LC 64 MHz with 1 KB on-chip I L1 and 256 KB off-chip unified I/D L1 cache
� 715/75: PA-7100 75 MHz with 256/256 KB off-chip L1 I/D cache
� 715/80: PA-7100LC 80 MHz with 1 KB on-chip I L1 and 256 KB off-chip unified I/D L1 cache
� 715/100: PA-7100LC 100 MHz with 1 KB on-chip I L1 and 256 KB off-chip unified I/D L1 cache
� 715/100XC : PA-7100LC 100 MHz with 1 KB on-chip I L1 and 1024 KB off-chip unified I/D L1
cache
The 1 KB on-chip L1 cache is not really a true cache.
Chipset
715/64, 715/80 and 715/100
� LASI ASIC, which features:
– NCR 53C710 8-bit single-ended SCSI-2
– Intel 82596CA 10 Mbit Ethernet controller
– WD 16C522 compatible parallel
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