IBM CS821, Service Manual

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a. Locate the memory DIMM that you want to remove.
b.
Unlock the memory DIMM by simultaneously pushing the locking tabs away from the memory
DIMM, in the direction that is shown in Figure 29. Be sure to unlock both tabs at the same time.
The lever action of opening the tabs pushes the memory DIMM out of the slot.
c. Hold the memory DIMM by the edges and pull it out of the slot.
4. 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 until the locking tab locks in place with an
audible click.
Figure 29. Removing the memory DIMM
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Power Systems: Servicing the IBM Power System S821LC (8001-12C) or the IBM CS821 (8005-12N)