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PA-RISC information - since 1999

HP 9000/720, 730 and 750

Quick Facts
Introduced 1991
CPU 1 PA-7000
50/66 MHz
Caches 384-512 KB L1
RAM 272 MB (730)
768 (750)
Design ASP
Drives 2 SCSI (720/730)
4 SCSI (750)
Expansion 1 SGC, 1 EISA (720/730)
2 SGC, 4 EISA (750)
Bandwidth CPU 264 MB/s (730/750)
CPU 200 MB/s (720)
Sys 132 MB/s (730/750)
Sys 100 MB/s (720)
I/O 10E
SCSI
2 serial
parallel
HIL

Overview

Project name:

These machines were the first PA-RISC workstations, called the Snakes, and were based on the first PA-RISC 1.1 processors. They were built into very solid cases, consisting of interlocking exchangeable modules (sliders). The storage subsystem has its own slider, connected to the main I/O board with a short external cable. The 720 and 730 share the same backplane and I/O board and can be upgraded through the exchange of the CPU board. Later HP 9000/735 workstations share a similar system setup and 720/730 CPU and I/O boards can be swapped together for 735 boards, and vice versa (as 735 I/O boards do not work with 720 CPU boards, both boards have to be exchanged).

The HP 9000 720, 730 and 750 were used by the US Navy as part of the TAC-3 (Tactical Advanced Computer) for a variety of applications, including electronic intelligence gathering (ELINT).

Model Introduced Price
720 1991 $11,990
730 1991 $
750 1991 $52,890

Internals

CPU

Chipset

Buses

Memory

Expansion

Drives

External connectors

References:

Manuals

Articles

Operating systems

Benchmarks

Model SPEC92, int SPEC92, fp SPEC95, int SPEC95, fp
720 36.4 58.2 1.20 2.00
730 47.8 75.4 1.50 2.30
750 48.1 75.0 1.50 2.30

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