Apple Power Macintosh 8100 Series - Manual (Page 128)

8 Align the connector end of the card with the expansion slot.
9 Press the card gently but firmly until the connector is fully inserted.
m Don’t force the card. If you meet a lot of resistance, pull the card out and
try again.
m To see if the card is properly connected, wiggle it gently. If it resists and
stays in place, it’s connected. (Make sure you don’t wiggle the card so much
that you accidentally disconnect it.)
If you have other cards to install, put them in now by repeating steps 6
through 9.
Expansion slot Connector
118 Appendix B