11. Locate the NVMEM battery plug socket, and then squeeze the clip on the face of the battery cable plug to
insert it into the socket.
Make sure that the plug locks down onto the controller module.
12. Close the controller module cover.
Step 4: Reinstall the controller
After you replace a component within the controller module, you must reinstall the controller module in the
system chassis and boot it to a state where you can run diagnostic tests on the replaced component.
1. 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.
2. Recable the system, as needed.
If you removed the media converters (QSFPs or SFPs), remember to reinstall them if you are using fiber
optic cables.
3. Complete the reinstallation of the controller module:
The controller module begins to boot as soon as it is fully seated in the chassis. Be prepared to interrupt
the boot process.
a. With the cam handle in the open position, firmly push the controller module in until it meets the
midplane and is fully seated, and then close the cam handle to the locked position.
Do not use excessive force when sliding the controller module into the chassis to avoid
damaging the connectors.
b. Tighten the thumbscrew on the cam handle on back of the controller module.
c. If you have not already done so, reinstall the cable management device.
d. Bind the cables to the cable management device with the hook and loop strap.
e. As each controller starts the booting, press
Ctrl-C
to interrupt the boot process when you see the
message
Press Ctrl-C for Boot Menu
.
f. Select the option to boot to Maintenance mode from the displayed menu.
Step 5: Run system-level diagnostics
After installing a new DIMM, you should run diagnostics.
Your system must be at the LOADER prompt to start System Level Diagnostics.
All commands in the diagnostic procedures are issued from the controller where the component is being
replaced.
1. If the controller to be serviced is not at the LOADER prompt, perform the following steps:
a. Select the Maintenance mode option from the displayed menu.
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