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   º         INTEL MATH COPROCESSOR COMPUTER COMPATIBILITY: TANDY            º
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     IF YOUR COMPUTER ISN'T LISTED

         If you cannot find your computer on this list, consult either your
         computer's user guide, a dealer or distributor or the manufacturer
         to find the recommended math coprocessor for your computer.


     TANDY COMPUTERS

         4000         80287-10 (not 287XL)   Install jumper on E8-E9

         4000A        387DX-16              Install jumper on E3-E4

         4000LX       387DX-20

         4000SX       387SX-16

         3000NL       287XL or 80287-10     Install a 10 Mhz oscillator (1)

         2800         287XLT

         3000 12MHz   287XL or 80287-10     Install jumpers E44-E46 and
         E47-E48

         1000TX,
         3000HD,                            Remove dummy plug, install 287
         3000HD-A,
         and 3000HL   287XL or 80287-10

         3000NL       287XL or 80287-10     Install a 10 MHz oscillator (1)

         1000TL,
         and 1400LT   8087-2                Run SETUP program

         1000A,                             Remove jumper E8 - E9
         1000SX,                            Remove jumper E3 - E4
         1200, 1200A                        (2)
         1200HD       8087-3

         1000,        These models
         1000EX,      don't support
         1000HX,      math
         and 2000     coprocessors

         (1) Radio Shack part number AXX-7149.  Insert into socket "Y3" to
             enable the math coprocessor.

         (2) This computer uses a specially modified 8087.  Call Tandy
             Technical Support for more information.

         Tandy Technical Support at (817) 338-2394.


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   February 25, 1991         Intel FaxBack # 3034                       Page 1