Specifications
.
::::
..
Section 5-Field Replaceable Units
This
section
contains
a
list of field replaceable
units
(FRUs)
for
Crimson
systems.
..
Also included
is
a
description
of
SGI's
part
numbaing nomenclature.
Part
Number Nomenclature
I
(.
.
:
..
..
--.
..
..
SGI's
part
numbers
identify four
types
of basic system components.
0
printed
circuit assemblies
(PCAS)
0
Peripheral
devices
(usually third-party)
Assemblies
Cable Assemblies
Printed
Circuit
Assemblies
Part
numbers
for
printed
circuit
assemblies
(PC&)
such
as
CPU
boards (without
daughter
cards),
daughter cards, YO boards, memory
boards.
graphic subsystem
components, and
SI["
modules or other basic circuit
board
take
the following
format
030-xxxx-xxx
For
basic
PCAs,
the
fust
three
digits
are
"030."
The
second
four
digits
are
unique
to
the particular part and rarely change.
The
last
three
digits
usually
denote
options
or
revision
levels
and
will
change during the part's
life
cycle.
0
Great
Eastern
Technology
11/96
5-1