Digital Equipment PRIORIS ZX 5000 MP, User Manual, Page: 19 / 169

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Introduction
The Prioris ZX 5000 MP Series is a family of high-performance, highly-
scaleable network and application servers featuring the latest in modular
CPU and storage technology. The Prioris ZX 5000 MP Series family of
servers also provide investment protection through CPU upgrade technol-
ogy. This technology enables you to easily upgrade to a higher-
performance CPU by simply installing a new CPU module or modules.
Prioris ZX 5000 MP Series Servers provide the following features:
CPU Module True symmetrical multi-processing (SMP) Intel Pentium
one (1P), two (2P), three (3P), or four (4P) processor
options available. All processor options use a 128-bit
memory interface and support a 32-bit PCI interface.
Also, 1P CPU modules contain a 512 KB burst write-back
cache module; 2P CPU modules contain a 1 MB burst
write-back cache per CPU.
Memory Module One or two memory modules available. Each module
uses Error Checking and Correcting (ECC) memory ar-
chitecture and supports 2-way interleaving. Each memory
module can be expanded to hold up to 384 MB of mem-
ory.
Onboard SCSI
Controllers Two onboard Adaptec

7870 Fast Wide SCSI-2 control-
lers. These controllers support 8-bit (narrow SCSI) data
path widths at a data transfer rate of 10 MB/sec and 16-
bit (wide SCSI) at a data transfer rate of 20 MB/sec. As
PCI masters, these controllers can also support data
transfer rates of 133 MB/sec.
PCI RAID Adapter Single or dual-channel PCI RAID adapter board in RAID-
ready servers enables you to manage data distribution
using multiple disk drives.