Apple Workgroup Server 8150/110 - Manual (Page 44)

4 If you are installing a full-sized card, remove the expansion card clip.
Grasp the clip handles with your thumb and forefinger and squeeze. Pull the
clip straight out.
5 If your expansion card has an external connector, pull out the plastic cover plate behind
the expansion slot you want to use, and set the cover plate aside.
28 Chapter 3 / Expanding Your Server and Connecting Other Equipment