System Board SIMMs
The system board contains four SIMM sockets: J0550 and J0551
(bank 0) and J0650 and J0651 (bank 1). Each socket can hold a
single-sided or a double-sided, 80 ns, 36-bit SIMM modules with
2M, 4M, 8M, 16M, or 32M of memory (see the Memory
Configurations appendix for model numbers). SIMMs must be
installed in matching pairs, however, the sets of pairs can be of
different sizes. SIMMs can be installed in either two or four of
the SIMM sockets.
(F4-5 54840001)
When you install SIMMs in the sockets on the system board, you
must start with socket J0550. When you remove SIMMs from the
sockets, you must start with the first SIMM-filled socket closest to
the top edge of the system board.
Note: Only SIMMs from approved manufacturers have been
tested for compatibility with your system. Contact your sales
representative or dealer for a list of approved devices.
J0651
J0650
J0550
J0551
04/APRIL/93 – 595-5484-UU
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4-8
Upgrades and Options
