HP J6750工作站北京现货促销
CPU
J6000: 1-2 PA-8600 552 MHz with 512/1024 KB on-chip I/D L1 cache
J6700: 1-2 PA-8700 750 MHz with 768/1536 KB on-chip I/D L1 cache
J6750: 1-2 PA-8700+ 875 MHz with 768/1536 KB on-chip I/D L1 cache
Chipset
The system is built around the HP Astro chipset:
HP Astro chipset
Astro memory and I/O controller connects to the two processors via the Runway processor bus (2.0 GB/s), the memory bus (2.0 GB/s) and eight I/O channels (ropes — aggregate 2.0 GB/s) and contains both memory, I/O and cache controllers
Four Elroy PCI bridges connect the PCI slots and I/O devices on the onboard PCI bus to the Astro with an aggregate bandwidth of 2.0 GB/s on seven I/O channels (one of the eight channels of the Astro controller is unused)
PCI 64/66 I/O slot on two channels — 0.5 GB/s
PCI 64/66 I/O slot on two channels — 0.5 GB/s
PCI 64/66 I/O slot on two channels — 0.5 GB/s
Onboard I/O devices (Fast Ethernet, SCSI, audio, IDE/USB etc.) on one channel — 250 MB/s
National 87560 (Super I/O), integrates USB, RS232, parallel, floppy and IDE
National 87415 IDE controller
National USB controller
Analog Devices AD1889 sound chip
DEC 21142/43 Fast Ethernet controller (Tulip)
Symbios Logic 53C896 Ultra2-Wide SCSI-3 controller
Buses
Runway CPU bus with 2.0 GB/s
Memory bus, about 2.0 GB/s
I/O bandwidth of around 1.75 GB/s
Three PCI-64/66 buses for expansion slots
PCI-64/33 bus for onboard I/O devices
SCSI-3 Ultra2-Wide LVD buses main storage I/O
IDE bus for CD/DVD removable media
Memory
278-pin 120 MHz ECC SDRAM DIMMs
16 slots
Takes 512 MB/1 GB DIMMs
1 GB (2×512) minimum, 16 GB maximum (16×1G)
Expansion
Three PCI 64-bit/66 MHz, 3.3 V slots
Drives
One tray for two 3.5″ Ultra2-Wide LVD SCSI hard drives with 80-pin SCA connector
One tray for a slim-line ATAPI CD-ROM
External connectors
68-pin HD SCSI-3 Ultra2-Wide LVD connector (SE)
Two DB9 male RS232C serial
DB25 female parallel
TP/RJ45 10/100 Mbit Ethernet
Two USB ports for keyboard & mouse
Four phone jacks (microphone, headphones, line-in and line-out)
References
Manuals
J6000 Service Handbook (PDF, 4.5 MB)
J6000 Technical Reference (URL gone)
J6700 Service Handbook (URL gone)
J6700 Technical Reference (URL gone)
Pictures
J6000: front,
J6000: back,
J6000: open (pictures © Copyright Dennis Grevenstein; with permission)
Operating systems
这些小型工作站旨在图形工作站市场,配备了新的64位pa - 8600和pa - 8700,以大型芯片上的L1缓存。的架构是一个重大改变的。新的I / O设备被集成,遍布的I / O芯片。现在所有设备连接到PCI总线,I / O设备被连接到USB端口。
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