Tandy 1000 RSX  (250-1454/55)    Math Coprocessor      Faxback Doc. # 1338

Computer-aided packages, spreadsheet packages, and other applications that
require many mathematic calculations can tie up the CPU. A math coprocessor
takes over the mathematical processing to free the CPU for other uses. Your
computer requires a 25 MHz, 387SX math coprocessor. The math coprocessor
socket is located on the main logic board.

Carefully read the instructions before you place the coprocessor into the
socket. Incorrect orientation or installation of the coprocessor can damage
the coprocessor of the socket. Radio Shack Service Center technicians will
install option devices if you choose not to do so yourself.

Use the following procedure to install a math coprocessor on the main logic
board of your computer:

1. Orient the math coprocessor so that the notch in the end of the coprocessor
   aligns with the notched end of the socket as illustrated:
2. Press the math coprocessor into the socket, taking care not to bend or
   touch the metal pins.

Note: Refer to Faxback Doc. # 9002 for catalog number of Math Coprocessor
and location on Main Logic Board.