15
SIMM
The SIMM (Single In-line Memory Module) sockets are divided into two
banks on the system board, Bank 0 and Bank 1. Each bank consists of
2 SIMM sockets.
You will need either 2 or 4 pieces of SIM modules, depending on the
amount of memory you intend to install. The system board will not work
if you install 1 or 3 pieces. Make sure you insert the same type of
SIMMs in one bank. You can install SIMMs in either of the banks, Bank
0 or Bank 1, but you must populate one bank first before going to the
next bank.
The 586ITB system board can support 8MB to 256MB of memory using
1MBx32, 2MBx32, 4MBx32, 8MBx32, or 16MBx32 72-pin SIMMs. The
table on the next page shows the supported SIM modules and their
corresponding memory sizes.
Installing the DIM Module
A DIM module simply snaps into a socket on the system board. Pin 1 of
the DIM module must correspond with pin 1 of the socket.
1. Pull the “tabs” which are at the ends of the socket to the side.
2. Position the DIMM above the socket with the “notches” in the mod-
ule aligned with the “keys” on the socket.
3. Seat the module vertically into the socket. Make sure it is com-
pletely seated. The tabs will hold the DIMM in place.
Pin 1
Notch
Key
Tab
Tab
