Epson Apex 386SX/16 Canadian Product User Manual - Page 42

Jumper W9

Page 42 highlights

Math Coprocessor If you process numeric data, a math coprocessor will make your work more efficient. An optional 80387SX-16 coprocessor can be installed in socket U42 to accelerate processing of calculation-intensive applications. Jumper W9 is used to enable or disable the 80387SX math coprocessor. Remember that you must make sure the dotted end of the chip is lined up with the notched end of the socket. Refer to the illustrations below and on the next page to install the Intel 80387SX-16. Refer to table 2-1 below for jumper W9, and figure 2-2 on the next page for the 80386SX, and the 80387SX. Jumper W9 80387SX Enable Disable Table 2- 1: Math Coprocessor Jumper W9 4 Chapter 2: Setting Up Your System

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Math
Coprocessor
If
you
process
numeric
data,
a
math
coprocessor
will
make
your
work
more
efficient.
An
optional
80387SX-16
coprocessor
can
be
installed
in
socket
U42
to
accelerate
processing
of
calculation-intensive
applications.
Jumper
W9
is
used
to
enable
or
disable
the
80387SX
math
coprocessor.
Remember
that
you
must
make
sure
the
dotted
end
of
the
chip
is
lined
up
with
the
notched
end
of
the
socket.
Refer
to
the
illustrations
below
and
on
the
next
page
to
install
the
Intel
80387SX-16.
Refer
to
table
2-1
below
for
jumper
W9,
and
figure
2-2
on
the
next
page
for
the
80386SX,
and
the
80387SX.
Jumper W9
80387SX
Enable
Disable
Table
2- 1:
Math
Coprocessor
Jumper
W9
4
Chapter
2:
Setting
Up
Your
System