Replace model 505 memory modules

If you removed memory modules as a part of another procedure, you might need to replace memory modules. Use the procedure in this section to perform this task.

1. Perform the prerequisite tasks described in Before you begin.
2. If necessary, remove the memory module from its antistatic package.
3. Determine the slots in which the memory modules will be placed. Memory modules can be plugged in pairs or quads. The minimum memory requirement is 1 GB. The maximum memory that is supported is 32 GB.
   Figure 1. Memory module slot locations

   

   Table 1. Memory module balancing

   Memory	Location	Priority
   Two memory modules
   	C4 and C11	1
   	C6 and C9	2
   	C5 and C10	3
   	C7 and C8	4
   Four memory modules
   	C4, C11, C6, and C9	1
   	C5, C10, C7, and C8	2
   Six memory modules
   	C4, C11, C6, C9, C5, and C10	1
   	C6, C9, C7, C8, C4 and C11	2

4. Ensure that the connector locking tabs are pushed out in the unlocked position before installing the new memory module.
   Attention: Memory modules are keyed to prevent a module from being installed improperly. Note the locations of the key tabs within the memory module connector before attempting to install the memory module.
5. Carefully grasp the memory module B along two edges and align the connector, as shown in Figure 2.
6. Insert the memory module firmly into the connector.
7. Secure the memory module with the locking tabs A located at each end of the memory module connector, as shown in Figure 2.
   Figure 2. Installing a memory module

   
8. Replace the service access cover. For instructions, see Install the service access cover on the rack-mounted model 505.
9. If you are servicing a rack-mounted system unit, Place the model 505 in the operating position.
10. Reconnect all power and signal cables to their respective connectors.
11. Start the system. For instructions, see Start the system or logical partition.
12. Verify the installed part. For instructions, see Verify the installed part.