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Chapter 2 Installation
19
Installing DRAM (SIMMs)
The mainboard provides two 72-pin SIMM (Single In-line
Memory Module) sockets and supports either Fast Page Mode
(FPM) or Extended Data Output (EDO) DRAM with a speed of at
least 70 ns. Unlike most other CPU cards, the mainboard supports
both single and dual insertion into the memory bank. Depending
on the combination of modules you use, you can install from 1
MB to 128 MB of RAM.
Installing SIMMs
NOTE:
The modules can only fit into a socket one way. Their
chips must face the CPU, and their gold pins must point down into
the SIMM socket.
1. Ensure that all power sources are disconnected.
2. Slip the memory module into the socket at a 45 degree angle.
3. Push the module toward the vertical posts at both ends of the
socket until the module is upright, and the retaining clips at
both ends of the module click into place. When positioned
correctly, the pins on top of the vertical posts should corre-
spond to the circular holes on the ends of the module.
4. Repeat steps 2 and 3 for each module you install.
the cable. If you install two drives, you will need to set one as the
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