HP 220 - Manual (Page 72)

Notch
1 Hold the memory module by its edges
with the nonĆmetallic edge toward you
and the notch to your left.
2 Tilt the nonĆmetallic edge downwards
and firmly push the module into the slot.
Gradually tilt the module upwards and
push it in until it clicks into place.
6Ć8 Removal and Replacement C3187Ć90000
To reinstall the SIMM, perform the following procedure: