HP 9000/748i and 748 VME Workstations
| Quick Facts | |
|---|---|
| Introduced | 1994, 1996 |
| CPU | 1 PA-7100LC/ 1 PA-7300LC 64-165 MHz |
| Caches | 128-256 KB L1 0-512 KB L2 |
| RAM | 256 MB (748i) 1 GB (748) |
| Design | LASI |
| Drives | 4 SCSI |
| Expansion | (2 GSC-M)/ (2 PMC PCI) 4 EISA/ 4 PCI 6 VME |
| Bandwidth | ? |
| I/O | micro 10E SCSI micro serial micro parallel micro VGA 2 PS/2 micro audio |
Overview
The 748i and 748 ruggedized workstations are 743i and 744 VME boards in a heavy, large VME-case, which provides the neccessary I/O facilities:
- Six 6U VME slots for additional I/O boards
- Room for up to four SCSI devices, which can be accessed from the outside
- Four-slot EISA or PCI cage
Internals
CPU
- 748i/64: PA-7100LC 64 MHz with 1 KB on-chip L1 and 256 KB off-chip L1 cache
- 748i/100: PA-7100LC 64 MHz with 1 KB on-chip L1 and 256 KB off-chip L1 cache
- 748/132L: PA-7300LC 132 MHz with 64/64 KB on-chip L1 cache
- 748/165L: PA-7300LC 165 MHz with 64/64 KB on-chip L1 and 512 KB off-chip L2 cache
Chipset
- LASI ASIC, which features:
- NCR 53C710 8-bit single-ended SCSI-2
- Intel 82596CA 10 Mbit Ethernet controller
- Wax EISA bridge
- Dino GSC-to-PCI bridge
- 748: Phantom PseudoBC GSC+ port
- 748: Visualize-EG
Graffiti
graphics with 2MB frame buffer memory - Harmony CD/DAT quality 16-bit stereo audio
- VME controller
- PCMCIA controller
- Other I/O (serial, parallel)
Buses
- GSC bus
- Optional EISA bus
- Optional PCI-32/33 bus
- VME bus
- SCSI-2 Fast-Narrow single-ended bus
Memory
- 748i and 748 use different cards
- 748i: 8-64 MB special ECC mezzanine cards
- 748: 16-256 MB special ECC mezzanine cards
- Up to four cards
- 748i: 8 MB minimum, 256 MB maximum amount of RAM
- 748: 16 MB minimum, 1 GB maximum amount of RAM
Expansion
- Two sites for GSC-mezzanine (GSC-M) cards, requires the A4219A GSC Expansion kit or
- Two sites for PCI-mezzanine (PMC) cards, requires the A4504A PMC bridge board
(two additional PMC-sites can be obtained through the addition of the A4509A PMC Expander board to the above) - Six 6U VME slots
- Either four EISA or four PCI slots in a separate I/O cage
External connectors
- SCSI-2 50-pin Fast-Narrow single-ended
- Two Serial micro-RS232C DB91
- Micro-Parallel DB251
- Micro-DB15 Ethernet AUI 15-pin1
- Micro-DB15 VGA graphics1
- Two PS/2 connectors for keyboard & mouse
- Micro-DB9 for audio breakout1
- On configurations with an EISA cage: HIL connector
Notes
- These micro-connectors need HP conversion cables to provide the normal-sized versions of their respective connectors
References
Manuals
- Model 748 Workstation Owner's Guide (PDF, 3.2 MB, Hewlett Packard 1997)
- 743, 744 and 748 Technical Reference Manual (PDF, 2.2 MB, Hewlett Packard 1997)
- HP Model 748 Service Handbook (.pdf, 3.6 MB, Hewlett Packard 1997)
Other
- Refer also to the 743i and 744 workstations
Operating systems
Benchmarks
| Model | SPEC95, int | SPEC95, fp |
|---|---|---|
| 748i/64 | 2.52 | 3.31 |
| 748i/100 | 3.76 | 4.03 |
| 748/123L | 6.45 | 6.70 |
| 748/165L | 7.90 | 7.64 |
Dimensions
| Height | Width | Depth | Weight | Power |
|---|---|---|---|---|
| 324mm | 425mm | 419mm | 29kg | 2×350W |