Replacing the SDRAM DIMM on the CPU module

About replacing SDRAM DIMMs

Replacing the SDRAM DIMM consists of the following procedures:

Removing the SDRAM DIMM
Installing an SDRAM DIMM

Required memory configurations

The FAS250 supports 1 x 512 MB, 2.5V 184P DDR SDRAM DIMM. The DIMM slot is inside the CPU module.

Caution
All DIMMs must be listed on the Network Appliance Approved Parts List. Contact Network Appliance Sales to obtain this list. Unapproved DIMMs have not been tested for reliability and might cause system downtime.

Removing the SDRAM DIMM

To remove the SDRAM DIMM, complete the following steps.

Step	Action
1	Perform a clean system shutdown before removing the DIMM. Caution Removing the DIMM without first performing a clean system shutdown can result in data loss.
2	Remove the CPU module. Follow the procedure in Removing the CPU module.
3	Put on the antistatic wrist strap and grounding leash.
4	Disconnect the battery pack from the motherboard before removing the DIMM. For the location of the battery pack, see CPU module contents.
5	Push apart the latches on either side of the DIMM to release the DIMM from its slot, as shown.
6	Pull the DIMM out of the slot.
7	Set the DIMM aside in an antistatic bag.

Installing an SDRAM DIMM

To install an SDRAM DIMM, complete the following steps.

Step	Action
1	Remove the CPU module, if you have not done so already. Follow the procedure in Removing the CPU module.
2	Put on the antistatic wrist strap and grounding leash.
3	Locate the DIMM slot on the CPU module for the DIMM you are installing.
4	Hold the DIMM by its top corners to avoid damaging the components.
5	Insert the DIMM straight into the slot. The DIMM fits tightly in the slot, but should go in easily. If not, realign the DIMM with the slot and try again. Caution Visually inspect the DIMM to verify that it is evenly aligned and fully inserted into the slot; otherwise, the edge connector on the DIMM does not make complete contact with the slot.
6	Push carefully but firmly on the top edge of the DIMM until the latches snap into place.
7	Reconnect the battery pack to the motherboard. For the location of the battery pack, see CPU module contents.
8	Go to Installing the CPU module.
9	After turning on your system, run diagnostics on the SDRAM DIMM. See the Diagnostics Guide for more information.