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Mitsubishi Electric Apricot LS 550 Owner's Handbook Manual Page 57

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Adding more system memory
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) SIMMs must be used: they give enhanced performance,
most noticeably in cacheless systems.
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.
You cannot easily install a SIMM in a socket while the socket
immediately next to it is occupied. You may therefore need to remove a
SIMM before you can install one.
Installing and removing SIMMs
1. Turn off the computer and unplug all power cords.
2. Take suitable anti-static precautions and remove the system unit
3. Use the illustration at the beginning of this chapter to identify
4. Compare the current configuration of SIMMs with the
If you are unfamiliar with the recommended anti-static precautions,
and/or the process of removing the system unit cover, refer to Appendix A,
"Inside the System Unit".
the SIMM sockets. Depending on how much memory is already
fitted some of the sockets may be occupied.
configuration for the memory upgrade you intend to install.
S y s t e m U p g r a d e s


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