Replacing a memory module in the 9824-42A or 9856-42H system

To replace a memory module in the system, complete the steps in this procedure.

1. Ensure that you have the electrostatic discharge (ESD) wrist strap on and that the ESD clip is plugged into a ground jack or connected to an unpainted metal surface. If not, do so now.
2. Use the slot information that you recorded to determine the slot location to place the memory module.
3. If you are placing a 2U high memory module in a 4U side location, install a memory module extender on the memory module.
   1. Slide the memory module retaining clip up.
   2. Place the memory module into the extender.
   3. Slide the memory module retaining clip down over the memory module.
      Review the following animation for a demonstration of how to install a memory module extender.

4. Using the alignment slots, press the memory module straight down firmly into the connector until fully seated..
   Attention: Memory modules are keyed to prevent a memory module from being installed incorrectly. Note the location of the key tab within the memory module connector before you attempt to install the memory module.
   Review the following animation for a demonstration of how to install a memory module in the side memory location.

   Review the following animation for a demonstration of how to install a memory module in the small memory location.

   Review the following animation for a demonstration of how to install a memory module in the large memory location.

5. Replace the retainer that secures the memory module in place.
   Lower the memory retainer until the retainer latches into place. The side locations have raised projections in the chassis to help align the retainers.