Identifying Memory Modules - DEC Personal DECstation 5000 User Manual

Memory Modules
10.1 Adding Memory to Your Workstation

10.1.1 Identifying Memory Modules

Table 10–1 shows how to identify the two 2-megabyte modules from each other
and the 8-megabyte module.
Table 10–1 Identifying Memory Modules
Customer
Order No.
MS01-AA
MS01-CA
MS01L-AA
1
Do not confuse the etched part number with the module part number, which has the prefix form
54-xxxxx-xx or 57-xxxxx-xx.
2
The 54-21213-01 (MS01L-AA) memory module can be used interchangeably with the 57-30735-02
(MS01-AA) module and can be used with the DECstation 5000 Model 100 as well as the Personal
DECstation but cannot be used with either the 2100 or 3100 models because of base system
hardware incompatibility.
Figure 10–1 and Figure 10–2 show how to identify the earlier 2MB module
versus the 8MB module.
• On the 2-megabyte module, the etched part number (not the module part
number) is in the center of the top edge of the back of the module. (You
are looking at the back of the module when you see a notch in its lower-left
corner.)
10–2 Memory Modules
Module Part No. Size
57-30735-02 2MB
57-34320-01 8MB
2
54-21213-01 2MB
Distinguishing Features
Etched part number (of the form 50-
1
xxxxx-xx) is at the center of the top edge
of the back of the module.
Etched part number (of the form 50-
1
xxxxx-xx) is at the top left corner on the
front of the module.
There are no chips on one side of this
module.