IBM 9006-22P Servicing page 62

Figure 41. Removing the memory DIMM
5. Insert the memory DIMM.
a) Grasp the memory DIMM along its edges and align it with the slot on the system backplane.
Attention: Memory is keyed to prevent it from being installed incorrectly. Note the location
of the key tab within the memory connector before you attempt to install it.
b) Press firmly on each side of the memory DIMM as shown in Figure 42 on page 49 until the locking
tab locks in place with an audible click.
48 Power Systems: Servicing the 9006-22P