Lenovo 6444, 6447, 6446, 6445 manual Memory mirroring

1	DIMM air baffle	3	Finger hole
2	Riser card assembly	4	Release ring

4.Remove the riser-card assembly.

5.Remove the DIMM air baffle.

6.Open the retaining clip on each end of the DIMM connector.

7.Touch the static-protective package that contains the DIMM to any unpainted metal surface on the outside of the server. Then, remove the DIMM from the package.

8.Turn the DIMM so that the keys align correctly with the connector.

9.Insert the DIMM into the connector. Firmly press the DIMM straight down into the connector. The retaining clips snap into the locked position when the DIMM is firmly seated in the connector.

Note: If there is a gap between the DIMM and the retaining clips, the DIMM has not been correctly inserted; open the retaining clips, remove the DIMM, and then reinsert it.

10.Replace the DIMM air baffle.

11.Replace the riser-card assembly.

If you have other optional devices to install, do so now. Otherwise, go to “Completingthe installation” on page 30.

Memory mirroring

You can configure the server to use memory mirroring. Memory mirroring stores data in two pairs of DIMMs simultaneously. If a failure occurs, the memory controller

Chapter 2. Installing optional devices 13