Step 3 Install Processor; Install Math Coprocessor Or - American Megatrends Super Voyager LC User Manual

Step 3 Install Processor

For Use Only with 80487SX Math Coprocessor
The only math coprocessor that can be used on the Super Voyager
LC motherboard is an Intel 80487SX. And it can be used only if
the processor on the Super Voyager LC is an Intel 80486SX. It is
installed in U54, the Intel Upgradable Processor socket. Make
sure the 80487SX coprocessor speed is the same as the 80486SX
speed (20 or 25 MHz).
Installing the 80487SX on the Motherboard
U54 is the empty 169-pin PGA socket between the cache memory
and the microprocessor. An 80487SX can be installed if an
80486SX processor is present.
Pin 1 of the socket is on a chamfered corner that corresponds to
pin 1 of the 80487SX, also on a chamfered corner. Check for bent
pins on the 80487SX. Gently straighten any bent pins with a pair
of pliers. Install the component in the socket. Align the pins and
press the 80487SX firmly in the socket, making sure that pin 1 is
aligned with pin 1 on U54. See the following figure.
Chapter 2 - Installation
18