System Memory - Micronics D5CUB PCI Manual

For long
term
reliability,
Micronics
recommends
using SIMMs
with tin-
plated
contacts.
The use of
gold-plated
contacts
may conflict
with the tin-
alloy on the
SIMM
socket.
System memory devices, commonly known as SIMMs,
are necessary to operate the D5CUB system board. The
D5CUB has four 32/36-bit SIMM sockets and can be
upgraded to 256 Megabytes of RAM. In addition, support
is provided for Error Checking (ECC), Extended Data
Out (EDO) DRAM memory and Fast Page Mode (FPM)
DRAM memory.
This section will explain the type of SIMMs supported,
list the rules for adding memory to the D5CUB, give some
examples of common memory configurations and show
how to physically install the new SIMMs.
SIMMs Supported
The D5CUB supports the following types of 60 or 70ns
SIMMs:
4MB (1MBx32/36)
8MB (2MBx32/36)
16MB (4MBx32/36)
32MB (8MBx32/36)
64MB (16MBx32/36)
Upgrading Rules
The following is a list of rules to follow when upgrading
SIMMs. If you follow these rules, your upgrade should be
trouble-free:
Use 70ns or faster SIMMs.
Upgrade SIMMs one bank at a time. Each bank must
contain two SIMMs of the same size and preferably
from the same manufacturer. For example, to add
16MB of memory to the system board, install two
8MB SIMMs into the same bank.