3. Install a new fan module.
a. Insert the module into the chassis.
b. Push the handle down to lock the module in place.
4. Install the storage controller.
For details, see Installing the Storage Controller.
Hot-swapping Redundant Power Supply Units
1. Power off the storage controller.
2. Disconnect the power cord from the electrical outlet and the PSU that you are replacing.
ES1686dc User Guide
Installation and Configuration 34