DEC DECstation 5000 Model 100 Series Hardware Operator's Manual page 78

Press the other end of the CPU module firmly into the CPU
5.
module slot in the system unit.
Seat the CPU module on the mounting posts and connector.
6.
If you installed a different model CPU module than the old
7.
one, turn the system unit cover upside down and remove
the nameplate medallion, as shown in Figure 5-14 on pge
5-24. Squeeze the tabs on the back of the medallion and
push them through the holes. Then press the medallion for
the new CPU module onto the cover from the front.
Replace the cover on the system unit, as shown in
8.
Figure 5-1, on page 5-3.
Internal Hardware Options 5–23