Replacing the memory modules: 2145-CG8 or 2145-CF8

The memory modules on a 2145-CG8 or 2145-CF8 node are electrostatic-discharge (ESD) sensitive. Take precautions to avoid damage from static electricity.

1. With the clips  2  open, lower the memory module  3  into the connector, as shown in Figure 1. Insert the DIMM fully to close the clips.
   Figure 1. Replacing a memory module

   
2. On a SAN Volume Controller 2145-CG8 or 2145-CF8 node, grasp the DIMM air baffle and replace it, making sure that the pin goes into the pin hole on the system board to the left of DIMM connector 8.
3. Replace the top cover on the node.
4. Replace the node in the rack.
5. Restore all power to the node.

   If a node error 511 - 515 displays on the front panel:

   1. Press power to turn off the node.
   2. Remove the power cable from the node.
   3. Wait 20 seconds and then replace the power cable.
   4. Turn on the node.
   5. If the error is displayed again, the memory bank might be disabled. Complete the following steps to enable a disabled memory bank:
      1. Press power to turn off the node.
      2. Attach the display and keyboard to the rear panel connectors. No special cables are required.
      3. Turn on the node and press F1 until the setup menu displays.
      4. Go to the configuration menu, select Memory, and enable the disabled memory bank.
      5. Save the settings, exit the configuration program, and then restart the node.
   6. If the error is displayed again, remove and replace the memory module again to ensure that it is seated correctly. If that does not resolve the error, the memory module connector might be the problem. Replace the system board on the SAN Volume Controller models 2145-CG8, and 2145-CF8.
6. Make sure that all cables, adapters, and other components are installed and seated correctly and that you have not left loose tools or parts inside the node. Make sure that all internal cables are correctly routed. If you disconnected the Fibre Channel and Ethernet cables, make sure that each cable is reconnected to the same port from which it was removed.
7. For the SAN Volume Controller 2145-CG8 or 2145-CF8, grasp the DIMM air baffle and replace it, making sure that the pin goes into the pin hole on the system board to the left of DIMM connector 8.
8. Replace the top cover. See Replacing the top cover.
9. If you removed the node from the rack, replace the node in the rack, as described in Replacing a node in a rack.
10. If you removed any Fibre Channel or Ethernet cables, use the labels you that placed on each cable to identify the ports from which they were removed.
11. If you removed the power cords, replace the power cords and the cable-retention brackets, as described in Replacing the cable-retention bracket.
12. Lift the locking levers ( 1  in Figure 2) on the slide rails and push the node  2  all the way into the rack until it clicks into place.
    Figure 2. Raising the locking levers of the slide rails of the rack

    
13. Turn on the node.
14. If there is a problem when restarting the node, see MAP 5900: Hardware boot; then, connect a monitor and keyboard to the system and reset the BIOS date and time.