Advantech PCA-6143P, User Manual

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Appendix C Upgrading 51
2. Install the SIMM cards. Install each SIMM so that its chips
faces the CPU and its gold pins point down into the SIMM
socket.
3. Slip each SIMM into a socket at a 45 degree angle and careful-
ly fit the bottom of the card against the connectors.
4. Gently push the SIMM into a perpendicular position until the
clips on the ends of the SIMM sockets snap into place.
5. Check to ensure that each SIMM is correctly seated and all
connector contacts touch. The SIMM should not move around
in its socket.
CPU installation and upgrading
This section tells how to install or upgrade the card's CPU. You
can upgrade your PCA-6143P to a higher powered 486 CPU at any
time. Simply remove the old 486 CPU, install the new and set the
jumpers for the CPU type and speed.
Warning! Disconnect all power from the chassis before you
remove or install the CPU card. Follow the
power-down procedure outlined in the manual for
your chassis. Unplug the power cord from the
wall, don’t just turn off the power switch. If you
are not sure what to do, take the job to an
experienced professional.
Caution! The electronic components on this CPU card are
very sensitive to static electric charges. Use a
grounding wrist strap to remove all static electrici-
ty before you touch any components. Place all
components on a static-dissipative surface or in a
static-shielded bag when they are not in the
chassis.
1. Disconnect power from the chassis and remove the CPU card.
Follow the instructions in the user's manual for your chassis.
You will also need to disconnect everything you connected in
Chapter 3, Connections.