IBM PS/2 35 SX Hardware Maintenance Reference page 42

6.9 1045 Math Coprocessor
Cover (1005)
Adapters (1010)
Bus Adapter (1015).
The system will not operate properly if the math coprocessor is installed
incorrectly or is the wrong type for the system.
Warning: Remove the math coprocessor carefully.
when removing the math coprocessor.
by electrostatic discharge, prying between the module and connector, or
prying between the connector and system board.
grounding by touching a ground point with one hand before touching the
math coprocessor.
Note: The system supplies a connector that accepts a 20-MHz 80387SX or
equivalent math coprocessor.
make sure the dot on the coprocessor is aligned with the dot on the
system board.
IBM PS/2 Model 35 SX, 35 LS, 35 SLC HMR
1045 Math Coprocessor
Do not bend the pins
The math coprocessor can be damaged
Establish personal
When replacing the math coprocessor,
PICTURE 17
¦ Copyright IBM Corp. 1991, 1992
6.9 - 1