Yamaha RS7000 Service Manual page 21

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Installing SIMMs
You can increase the RS7000's memor y by installing
commercially available SIMMs (single in-line memory modules).
This section explains how to carry out the installation.
IMPORTANT
• You need to use 72-pin SIMMs with access times of 70ns
or less. The SIMM module size may be 4, 8, 16, or 32 MB.
The RS7000 is designed for use with 32 bit SIMMs, but can
also accept installation of 36 bit (parity-type) SIMMs.
• When purchasing SIMMs, make sure that the SIMM design
does not utilize more than 18 memory chips per module.
(SIMMs comprised of more than 18 chips do not operate
correctly on the RS7000.)
• SIMMs must be installed as a pair of the identical capacity.
It is not possible to add just a single SIMM.
• The RS7000 ships with 4 MB of memory installed. This
means that if, for example, you install a pair of 16 MB SIMMs,
the sampling memory will be 4 + (16 x 2) = 36 MB. However,
the maximum sampling memory is 64 MB. For this reasons
the original memory will effectively be disabled if you install
a pair of 32 MB SIMMs (one pair: 32 x 2 = 64 MB).
• YAMAHA recommends that you purchase SIMMs that
conform to the JEDEC* standard. Please be aware,
however, that conformance to this standard does not
guarantee that the SIMM will oper-ate on the RS7000 even
if it operates on a personal computer.
* JEDEC (Joint Electron Device Engineering Council) sets
standards for terminal configurations within electronic
devices.
RS7000
21

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