Epson EQUITY 386/33 PLUS - Manual (Page 74)

4. Unpack the option card and adjust any switches or jumpers
on it, if necessary. (Check the option card instructions.)
When you handle the card, be careful not to touch any of
the components on the circuit board or the gold-edged
connectors. If you need to set it down before you install it,
place it gently on top of its original packing material with
the component side facing up. Keep the packing materials
in case you remove the card later.
5. Grip the card firmly by the top corners and make sure the
connectors point down, as shown below.
6. Insert the card into the slot, guiding it straight down. Once
the connectors reach the slot, push the card downward
firmly (but carefully) to insert it fully. You should feel the
card fit into place.
If the card does not go in smoothly, do not force it; pull it
all the way out and try again, keeping it straight as you
insert it. Examine the card to verify that it is fully seated in
the slot along the length of the connector.
4-14 Installing and Removing Options