OpenPA.net

HP 9000/743i & 744 VME Workstation

Quick Facts
Introduced 1994 and 1997
CPU 1 PA-7100LC/
1 PA-7300LC
64-165 MHz
Caches 128-256 KB L1
0-512 KB L2
RAM 256 MB (743i)
1 GB (744)
Design LASI
Drives none
Expansion (2 GSC-M)/
(2 PMC PCI)
Bandwidth ?
I/O micro 10E
SCSI
micro serial
micro parallel
micro VGA
2 PS/2
micro audio

Overview

The Anole 743i and 744 workstations are VME Single Board Computers (SBCs). The whole system processing unit (SPU) together with the memory and several I/O controllers sit on a single-height 2U VME board, which needs to be installed in a fitting VME cage. This cage provides power and an VME bus connection for routing of I/O to either other VME boards (VME devices) or the so-called P2 connector.

The 743i and 744 SBCs feature a small set of expansion cards, which plug into the available expansion slots and include GSC-mezzanine (GSC-M) and PCI-mezzanine (PMC) cards. It is also possible to use an EISA or PCI cage on several of HP’s own systems based on the 743i and 744. Since the board also features an VME controller it can talk to and control other VME cards on the same VME bus/cage. Of note is that some of the pins on the P2-VME connector on the rear are used to route GSC bus traffic to several of the expansion options. VME cages need to be properly jumpered to support this in order to not interfere with these transfers. Also, it is dangerous to use these boards in a VXI cage since some of the VXI pins carry voltage which would result in damaged devices on the GSC bus.

The 743i is technically based on the design of the HP 9000/715 workstations, the 744 partially on the B132L/B160L workstations.

The 743i boards are used in the 748i industrial workstations, the 744 boards in the 745 and 748 industrial workstations.

Internals

CPU

The 1 KB on-chip L1 cache on systems with a PA-7100LC is not really a true cache.

Chipset

Buses

Memory

Expansion

External connectors

  1. These micro-connectors need HP conversion cables to provide the normal-sized versions of their respective connectors

References

Manuals

Operating systems

Benchmarks

Model SPEC95, int SPEC95, fp
743i/64 2.52 3.31
743i/100 3.76 4.03
744/123L 6.45 6.70
744/165L 7.90 7.64

Compare these with other results on the Benchmarks page.

↑ up