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Chapter 3: Installation
Manual Number: 00431-220-5
Page 3-3
Adding/Removing Board Components
Board components may need to be added, removed, and/or configured for your system. User-
changeable board components include RAM, the CPU, and the CPU fan. The instructions below
describe how to install or change these components.
Installing RAM
The SB586T series accepts up to 256MB of RAM. The four 72-pin RAM SIMM sockets will
accept 32- and 36-bit SIMM modules in pairs. (
Figure 3-5
shows a basic board layout, or you can
refer to the layouts in Chapter 2.)
Use only tinned lead SIMMs on your single board computer. Install 70ns (or faster) SIMMs to
ensure reliable operation at zero-wait states. Memory SIMMs must be the same size in both sockets
of a bank, and must be installed as a pair. ICS Advent recommends that the SIMMS be of the same
manufacturer and speed.
Note:
If you are installing DRAM, you may use FPM or EDO RAM, with or without parity. While
EDO SIMMs are supported, FPM SIMMs with parity or ECC SIMMs are recommended
for critical applications.
CAUTION!
SIMM sockets are rugged, but they can be broken. Use extreme care when
removing a SIMM from its socket. Never force a SIMM into a socket and make sure
the SIMM is in the correct orientation before installation.
SIMM sockets broken
due to ABUSE, MISHANDLING, or ACCIDENT are not covered under the
warranty.
Follow these instructions to install RAM on your SB586T:
1. Take proper ESD precautions
before
starting any work.
2. Turn the SIMM so that the notched corner of the SIMM is closest to the edge of the board. The
notch fits over a post at one end of the socket. This post allows the SIMM to be installed only
in the correct direction (
Figure 3-3
).