Replacing the memory modules: 2145-DH8

The memory modules are electrostatic-discharge (ESD) sensitive. Take precautions to avoid damage from static electricity when you replace the SAN Volume Controller 2145-DH8 memory modules.

About this task

See Figure 1 for the locations of the DIMM connectors on the system board.

Figure 1. Locations of the DIMM connectors on the system board

Table 1 lists the eight DIMM slots that are populated with the memory RDIMM.

Table 1. DIMM slots populated with the memory RDIMM

Processor	DIMM Slot Number
1	1 - 8 GB RDIMM
	4 - 8 GB RDIMM
	9 - 8 GB RDIMM
	12 - 8 GB RDIMM
2 (if fitted)	13 - 8 GB RDIMM
	16 - 8 GB RDIMM
	21 - 8 GB RDIMM
	24 - 8 GB RDIMM

Note: Do not put any DIMM into DIMM slots 2, 3, 5, 6, 7, 8, 10, 11, or slots 13 - 24 if processor 2 is not fitted.

1. Remove the air baffle over the DIMMs.
2. Open the retaining clip on each end of the DIMM connector.
   Attention: To avoid breaking the retaining clips or damaging the DIMM connectors, open and close the clips gently.
3. Touch the static-protective package that contains the DIMM to any unpainted metal surface on the file module, and then remove the DIMM from the package.
4. Turn the DIMM so that the DIMM keys align correctly with the connector.
5. Insert the DIMM into the connector by aligning the edges of the DIMM with the slots at the ends of the DIMM connector, as shown in Figure 2. Firmly press the DIMM straight down into the connector by applying pressure on both ends of the DIMM simultaneously. The retaining clips snap into the locked position when the DIMM is firmly seated in the connector.
   Figure 2. Installing the DIMM

   
   Attention: If there is a gap between the DIMM and the retaining clips, the DIMM is not correctly inserted; open the retaining clips, remove the DIMM, and then reinsert it.
6. Repeat steps 1 through 5 until all the new or replacement DIMMs are installed.
7. Replace the air baffle over the DIMMs, making sure that all cables are out of the way.
8. Install the cover.
9. Slide the file module into the rack.
10. Go to the management GUI and look for any unfixed events that are related to the DIMMs.