DEC DECpc 433 User Manual

System Description
System Box
System box FR Us include a system board, a power supply, an intelligent
graphics controller,
an optional 3.5-inch floppy disk drive or 3.5-inch IDE
hard drive, and an optional 2.5-inch IDE hard drive.
System Board
System board FRUs include Single In-line Memory Modules (SIMMs) and an
external cache. All other system board components are soldered in place,
making field replacement impractical.
SIMMs
There are three SIMM banks on the system board. Each bank has four SIMM
sockets. Either 1 MB x 9 or 4 MB x 9 SIMMs can be installed in each socket
Both SIMM sizes can be used at the same time; however, SIMM types w:thin a
bank must be identical. The system also requires SIMMs having an access
time
of 80 ns or faster.
The base system is shipped
with 8 MB (eight 1 MB x 9 SIMMs). The customer
might have installed additional SIMMs. If a system board needs to be
replaced, the original 8 MB of SIMMs should remain with the system board
when returned to the factory. The additional SIMMs should be reinstalled
on the replacement system board.
External Cache
The external cache is an option. When :nstalled it provides either 64 KB or
128 KB of external cache memory.
DECpc 433 Workstation Service Guide
1-3

DEC DECpc 433 Specifications

General

Brand	DEC
Model	DECpc 433
Category	Desktop
Language	English