DIMM locking tab
1. Remove the NVRAM module from the impaired controller module:
a. Depress the cam latch button.
The cam button moves away from the chassis.
b. Rotate the cam latch as far as it will go.
c. Remove the NVRAM module from the enclosure by hooking your finger into the cam lever opening and
pulling the module out of the enclosure.
2. Install the NVRAM module into slot 4/5 in the replacement controller module:
a. Align the module with the edges of the chassis opening in slot 4/5.
b. Gently slide the module into the slot all the way, and then push the cam latch all the way up to lock the
module in place.
Step 9: Install the controller module
Reinstall the controller module and reboot it.
1. Ensure the air duct is completely closed by rotating it down as far as it will go.
It must lie flush against the controller module sheet metal.
2. Align the end of the controller module with the opening in the chassis, and then gently push the controller
module halfway into the system.
Do not completely insert the controller module in the chassis until instructed to do so.
3. Recable the system, as needed.
If you removed the transceivers (QSFPs or SFPs), remember to reinstall them if you are using fiber optic
cables.
4. Complete the reinstallation of the controller module:
a. Firmly push the controller module into the chassis until it meets the midplane and is fully seated.
The locking latches rise when the controller module is fully seated.
Do not use excessive force when sliding the controller module into the chassis to avoid
damaging the connectors.
a. Rotate the locking latches upward into the locked position.
5. Plug the power cords into the power supplies.
If you have DC power supplies, reconnect the power block to the power supplies after the
controller module is fully seated in the chassis.
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