NetApp ASA C Series Install page 257

2. Move the fan module to the replacement controller module, and then install the fan module by aligning
its edges with the opening in the controller module, and then sliding the fan module into the controller
module until the locking latches click into place.
3. Repeat these steps for the remaining fan modules.
== Step 4: Move the NVDIMM battery
When replacing the controller module, you must move the NVRAM battery from the impaired controller
module to the replacement controller module
1. Open the air duct cover and locate the NVDIMM battery in the riser.
Fan locking tabs
Fan module
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