Feature GS80 GS160 GS320
Number of Model 4: 1-4 Model 8: 1-8 Model 24: 6-24
processors Model 8: 1-8 Model 16: 2-16 Model 32: 6-32
(One Alpha
21264
processor per
module)
Cache size On Chip: 64 KB I-cache and 64 KB D-cache
On Board: 4 MB per processor
Maximum Model 4: 32GB Model 8: 64GB Model 24: 192GB
memory Model 8: 64GB Model 16: 128GB Model 32: 256GB
Restriction:
Memory
support in
Q1-2000 is
limited to
512MB DIMMs
and 4GB per
module.
Maximum PCI Model 4: 8/28 Model 8: 16/56 Model 24: 48/168
buses/slots Model 8: 16/56 Model 16: 32/112 Model 32: 64/224
Quad Building Up to 2 QBBs Up to 4 QBBs Up to 8 QBBs
Blocks (QBBs)
Each QBB
supports up
to:
4 CPUs
4 memory
modules
8 PCI
buses
QBB Model 4: n/a Model 8: Model 24:
Interconnect Model 8: Distribution Distribution Module Hierarchical Switch
Module Model 16: Model 32:
Hierarchical Switch Hierarchical Switch
Maximum I/O 3.2GB/s 6.4GB/sec 12.8GB/s
bandwidth
Maximum 12.8GB/s 25.6GB/s 51.2GB/s
aggregate
bandwidth
Master PCI
Shelf Box
contains: Standard I/O module
Fast Ethernet card
Console ports
One bi-directional parallel port with 25-pin
D-subminiature connector
Two EIA-232 full duplex asynchronous modem control
serial ports
One PS/2 compatible keyboard port;
One PS/2 compatible mouse port
Boot/Diagnostic Devices included in Master PCI Shelf Box
CD-ROM One 5.25" half height 600MB CD-ROM drive
Hard Drives One 9.1-GB SCSI-3 disk drive
Diskette Drive One 1.44MB diskette
In-cabinet CPU, I/O, memory, storage
upgrades
Operating Tru64 UNIX, OpenVMS
System
Graphics Optional
Support
*The AlphaServer GS80/GS160/GS320 are separate, but related, in that they
use the same switch technology. The CPU modules, memory modules, and power
modules are also the same.* _Top of page_
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