System Overview 1-1
Chapter 1
System Overview
This chapter introduces the DIGITAL AlphaServer 1200 and the DIGITAL
AlphaStation 1200 systems. These systems are available in cabinets or pedestals.
Pedestal systems contain a maximum of two CPUs, up to 2 Gbytes of memory, and 6
PCI I/O slots or 5 PCI I/O slots and 1 EISA/ISA slot. A single StorageWorks shelf
provides disk storage.
Topics in this chapter include the following:
•
1200 Systems
•
Control Panel and Drives
•
System Consoles
•
System Architecture
•
CPU Types
•
Memory Modules
•
Memory Addressing
•
System Motherboard
•
System Bus Backplane
•
System Bus to PCI Bus Bridge
•
PCI I/O Subsystem
•
Remote Control Monitor
•
Power Control Logic
•
Power Circuit and Cover Interlock
•
Power Supply
•
Power Up/Down Sequence
•
Maintenance Bus (I
2
C Bus)
•
StorageWorks Drives
