Replacing SDRAM DIMMs on the motherboard

About this section

This section provides the supported memory configurations for the F700 series filers and the procedures for replacing the SDRAM DIMMs on the motherboard. Replacing the SDRAM DIMMs on the motherboard consists of the following procedures:

Removing an SDRAM DIMM
Installing an SDRAM DIMM

Supported memory configurations

The supported memory configurations for the F700 series filers are as follows.

Filer	Required memory configuration
F720	3.3-volt, unbuffered, 4x64 MB SDRAM DIMMs
F740	3.3-volt, unbuffered, 4x128 MB SDRAM DIMMs
F760	3.3-volt, unbuffered, 4x256 MB SDRAM DIMMs

Caution
All DIMMs must be listed on the Network Appliance Approved Parts List. Contact Network Appliance Sales to obtain this list. Do not use unapproved DIMMs.

The following figure illustrates a typical SDRAM DIMM.

Removing an SDRAM DIMM

To remove an SDRAM DIMM, complete the following steps.

Step	Action
1	Open the PCB carrier. Follow the procedure in Opening the PCB carrier.
2	Locate the DIMM that you want to remove.
3	Push apart the latches on either side of the DIMM to release the DIMM from its slot, as shown.
4	Pull the DIMM out of the slot.
5	Set the DIMM aside in an antistatic bag.

Installing an SDRAM DIMM

To install the SDRAM DIMM, complete the following steps.

Step	Action
1	Locate the DIMM slot for the DIMM you are installing.
2	Hold the DIMM by its top corners to avoid damaging the components and turn the DIMM so that the locator notches on the edge connector are away from the lithium battery.
3	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.
4	Push carefully, but firmly on the top edge of the DIMM until the latches snap into place.
5	Proceed to Closing the PCB carrier.