Rockwell Automation Allen-Bradley 6181, User Manual, Page: 57 / 91

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This chapter describes how to add RAM Memory to the 6181 Computer
processor board. Topics include:
•
Available RAM memory
•
Guidelines for adding/removing memory modules
•
How to add/remove memory modules to processor board
The 6181 Computer processor board has one 168–pin socket supporting
a single or double–sided Dual In–Line Memory Module (DIMM):
Memory Module Catalog Number
32MB SDRAM DIMM 6189-1DIMM32
64MB SDRAM DIMM 6189-DIMM64
128MB SDRAM DIMM 6189-DIMM128
256MB SDRAM DIMM 6189-1DIMM256
Note:
If you use any type of memory module other than a
qualified Allen-Bradley part, you may encounter problems.
When adding memory to the 6181 Computer processor board, follow
these guidelines:
•
Use only a standard, unbuffered 168–pin DIMM that conforms to
both PC-100 and Serial Presence Detect (SPD) compliance industry
standards.
•
Use only Synchronous Dynamic Random Access Memory (SDRAM)
type DIMMs.
•
BIOS automatically detects memory size and type (i.e., SDRAM vs.
EDO). It does not detect parity, however, so this must be manually
configured by the end-user in BIOS Setup. The 6181 Computer ships
with ECC-type memory, and the Memory Parity Check feature in
BIOS Setup is programmed to “ECC” by default.
•
If a non-ECC DIMM is installed, the Memory Parity Check in BIOS
Setup must be changed/saved to “Disabled”. The system will fail to
boot if ECC is enabled in Setup with a non-ECC DIMM installed.
•
Use only gold-plated lead DIMMs.
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Chapter Objective
Available RAM Memory
Guidelines for
Adding/Removing
Memory