Epson Apex 386/33 Canadian Product User Manual - Page 79

Installing Numeric Coprocessor, jumper W1 should be SHORTED if an Intel 80387 or Weitek 3167 is

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Installing Numeric Coprocessor If you process numeric data, a math coprocessor will make your work more efficient. The PEM-3300 mainboard supports the Intel 80387 and Weitek 3167 numeric coprocessors. The coprocessor chip should be inserted into the coprocessor socket (U160), with the notch on the package oriented in the same direction as the corresponding notch on the socket. The jumper W1 should be SHORTED if an Intel 80387 or Weitek 3167 is not installed and OPENED if either one of them is installed. The position of the coprocessor sockets is shown below. Figure 2-34: Location of Coprocessors 40 Chapter 2: Setting Up Your System

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Installing Numeric Coprocessor
If you process numeric data, a math coprocessor will make your work
more efficient.
The PEM-3300 mainboard supports the Intel 80387 and Weitek 3167
numeric coprocessors. The coprocessor chip should be inserted into
the coprocessor socket (U160), with the notch on the package oriented
in the same direction as the corresponding notch on the socket. The
jumper W1 should be SHORTED if an Intel 80387 or Weitek 3167 is
not installed and OPENED if either one of them is installed. The
position of the coprocessor sockets is shown below.
Figure 2-34:
Location of Coprocessors
40
Chapter 2: Setting Up Your System