Specifications

SL 486VE User's Manual
Note that all of the four SIMMs within a bank must be of the same type; you
can not mix 256KB, 1MB, 4MB, or 16MB modules in the same bank.
The SL 486VE board provides 8 sockets for SIMM modules. These 8 sockets
are divided into two banks and each bank can accommodate four SIMM
sockets. Every bank can accept 256KB, 1MB, ,4MB or 16MB SIMM modules,
but all of the four SIMM modules used in the same bank must be the same size.
This ability for mixing assorted SIMM modules on the two banks allows the
system to be shipped with minimal memory and upgrade without sacrificing
the memory already on board.
Since this main board is designed to automatically scan the total memory
installed, there is no jumper for further adjustment when installing or
reinstalling the SIMM modules. Please note that there is a bank ordering
restriction for SIMM installation. In other words, the user must install SIMM
modules from left side (bank 0).
2.1.1 DRAM Module Insertion
The SIMMs must be seated on the sockets as firmly as possible, and, because
of the fragility of the slot, you must be careful when inserting or removing the
module.
1. Align the module so that the pin-1 marking and corner notch of the module
correspond to the SIMM socket pin 1 marking at the rear of the board.
The module can fit in the socket one way only. Do not force it!
2. Push the module against the clip arms with your thumbs until a "clicking"
sound is heard; the little plastic tabs appear in the latching holes on the
RAM module board, and the clip arms fully grab the module board.
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