HP 9000/745i and 747i VME Workstations
| Quick Facts | |
|---|---|
| Introduced | 1992 |
| CPU | 1 PA-7100 50-100 MHz |
| Caches | 128-512 KB L1 |
| RAM | 128 MB (/50) 256 MB (/100) |
| Design | ASP |
| Drives | 2 SCSI 1 FD/SCSI |
| Expansion | 4 EISA (745i) 747i: 2 EISA 1 SGC 6 VME |
| Bandwidth | ? |
| I/O | 10E SCSI 2 serial parallel VGA HIL HP-IB audio |
Overview
These Pace named models were one of the first PA-RISC workstations for industrial/medical use. They are technically very similar to the older 715 workstations and 725 workstations while being built in ruggedized, rack-mountable cases. The CPU and I/O controllers sit on a VME SBC (single board computer) which is identical on both 745i and 747i. The latter systems are built in an even bigger case and feature VME slots, which the 745i do not have. Both have a HP-IB interface, which was used mainly for controlling and/or instrumental use. Interestingly these machines have two pairs of LED banks, one at the front and the other directly on the CPU board on the back.
Internals
CPU
- 745i/50: PA-7100 50 MHz with 128 KB off-chip L1 cache
- 747i/50: PA-7100 50 MHz with 128 KB off-chip L1 cache
- 745i/100: PA-7100 100 MHz with 512 KB off-chip L1 cache
- 747i/100: PA-7100 100 MHz with 512 KB off-chip L1 cache
Chipset
- ASP chipset, featuring:
- Viper memory and I/O controller
- NCR 53C700 8-bit single-ended SCSI-2
- Intel 82596DX 10 Mbit Ethernet controller
- Intel 82350 EISA bus adapter chipset
- CRX graphics, 8-bit
- HP-IB controller
- 747i: VME controller
- PSB2160 CODEC for 8-bit mono audio
- Other I/O (serial, parallel, i8042)
Buses
- PBus processor/memory bus
- VSC main system bus
- GSC system-level I/O bus
- EISA I/O expansion bus
- HP-IB bus (IEEE-488); peripheral bus
- SCSI-2 narrow single-ended bus
- 747i: SGC expansion of the mainbus to the SGC expansion slot
- 747i: VME bus
Memory
- 72-pin ECC SIMM
- 8-32 MB modules (/100 models take 64 MB modules)
- Four sockets
- /50 models: 16 MB (2×8) minimum, 128 MB (4×32) maximum
- /100 models: 16 MB (2×8) minimum, 256 MB (4×64) maximum
Expansion
- 745i:
- Four EISA expansion slots
- 747i:
- Two EISA expansion slots
- One SGC (DIO-II formfactor) expansion slot
- Six VME slots
Drives
- One bay for an external-accessible 5.25″ half-height SCSI drive
- One bay for an external-accessible 3.5″ SCSI drive or floppy
- One bay for a 3.5″ SCSI drive
External connectors
- SCSI-2 50-pin single-ended
- Two Serial RS232C DB9
- Parallel DB25
- Ethernet AUI 15-pin
- HD 15 VGA
- HP-HIL connector for input devices
- HP-IB for peripherals
- Three phone jacks (microphone-in, headphone-out and speaker-out)
References
Manuals
- 745i/50, 745i/100, 747i/50, and 747i/100 Owner’s Guide (.pdf, 1.7 MB) Hewlett Packard (August 1993: First edition)
Operating systems
Benchmarks
| Model | SPEC92, int | SPEC92, fp | SPEC95, int | SPEC95, fp |
|---|---|---|---|---|
| /50 | 36 | 72 | 1.53 | 2.46 |
| /100 | 81 | 138 | 3.22 | 4.06 |
Dimensions
| Model | Height | Width | Depth | Weight | Power |
|---|---|---|---|---|---|
| 745i | 175mm | 425mm | 412mm | 18.6kg | 350W |
| 747i | 310mm | 425mm | 412mm | 29kg | 700W |