Intel SBT2 Quick Start Manual page 18

2 Place the bottom piece of epac into the chassis as shown. Make sure it is
fully seated in the chassis. If it isn't, the cover will not fit properly.
NOTE
The epac drops straight in. Do not tilt it in; trying to straighten in will
break the epac.
18 SBT2 Server Board Quick Start Guide
A
OM10425