System Overview; Introduction; Motherboard - HPE AlphaServer 300 User Manual

Introduction

This chapter describes the AlphaServer 300 system hardware components, including the
motherboard, PCI architecture, keyboard, front panel controls, rear panel connectors, and
security features.

Motherboard

Your AlphaServer 300 system uses a high-performance DECchip 21064A CPU (central
processing unit). System features include:
•
2 MB cache memory.
•
Memory controller and data path that connects through a 128-bit wide data bus to
main memory and through a 128-bit wide data bus to second-level cache. The data is
longword parity protected (each set of 32 bits has a parity bit).
•
PCI bus adapter with a 32-bit wide multiplexed address/data bus.
•
Floppy disk controller that supports a floppy drive and one additional CD drive.
•
PCI-based embedded SCSI-2 controller that supports up to seven SCSI peripherals
such as hard disk drives, CD-ROM drive, and tape drives.
•
One slot for a PCI option, one slot for a PCI or ISA option, and one additional slot for
a half-size ISA option.
•
Keyboard and mouse ports, two serial ports, and one enhanced bidirectional parallel
port.
•
PCI based Ethernet adapter.
Refer to Appendix A, Technical Specifications, for additional information.

System Overview

System Overview 1-1
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