5. Using both hands, grasp the controller module sides and gently pull it out of the chassis and set it on a flat,
stable surface.
6. Turn the thumbscrew on the front of the controller module anti-clockwise and open the controller module
cover.
Thumbscrew
Controller module cover
Step 3: Replace a fan
To replace a fan, remove the failed fan module and replace it with a new fan module.
You can use the following video or the tabulated steps to replace a fan:
1. Identify the fan module that you must replace by checking the console error messages or by locating the lit
LED for the fan module on the motherboard.
2. Remove the fan module by pinching the side of the fan module, and then lifting the fan module straight out
of the controller module.
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