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Mitsubishi Electric apricot MS660 Owner's Handbook Manual Page 59

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S y s t e m U p g r a d e s
Adding more system memory
Installing and removing SIMMs
The computer's motherboard is fitted with sockets for up to four
SIMMs (single in-line memory modules). You may need to add
more memory if you want to run complex operating systems or
large application programs.
The SIMMs sockets are located at the front of the motherboard.
SIMMs with capacities of 2, 4, 8, 16, or 32 Mbytes are supported,
giving a maximum capacity of 128 Mbytes. Extended Data Output
(EDO) 60nS SIMMs must be used. SIMMs must be fitted in
matching pairs, i.e., fill either bank:
There are two pairs or banks of sockets. The sockets labelled
MM1 and MM2 form Bank 1, and the sockets labelled MM3
and MM4 form Bank 2.
It is sometimes difficult to install SIMMs in their sockets when the
adjacent sockets are occupied. You may therefore need to remove the
existing SIMMs before you can install the new ones.
Turn off the computer and unplug all power cords. Take
suitable anti-static precautions and remove the system main
side panel, as detailed in the first chapter.
If you are unfamiliar with the recommended anti-static precautions,
refer to the antistatic section at the rear of this handbook.
Use the illustration at the beginning of this chapter to identify
the SIMM sockets. Some or all of the sockets will be occupied.
Compare the current configuration of SIMMs with the
configuration for the memory upgrade you intend to install.
◊ The following table details the supported memory


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