1800 HD  (250-3502)           Math Coprocessor          Faxback Doc. # 1869

Math Coprocessor Installation Information:

Note: Use an Intel 287XLT Math Coprocessor.

Graphical design programs or programs that perform a large number of
mathematical computations require your computer to do a lot of work. These
types of programs can take additional time to run unless you have a math
coprocessor in your computer. A coprocessor (Intel 287XLT) allows your
computer to run these types of programs much faster.

CAUTIONS:

* Be sure you touch a grounded metal object before you handle the copro-
  cessor.

* It is very important that you correctly position the math coprocessor. 
  Once the coprocessor is installed, you must use a special chip 
  extractions tool to remove it.

* If the computer is powered up with the coprocessor installed incorrectly,
  the computer and the coprocessor will be permanently damaged.

To install a coprocessor, do the following:

1. Exit any program you might be in and turn off your computer.

2. Remove the battery.

3. Remove the two screws from the compartment cover.

4. Position the math coprocessor in the socket. Use the small hole on
   the chip's top surface and the slanted corner of the socket as guides.

5. Carefully press down the math coprocessor until it snaps into place.

6. Replace the compartment cover, and reinstall the battery.

7. Turn on the computer.


(smm 08/06/93)

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