3. Remove the PCIe switch board.NOTE: You must remove the PCIe switch board to replace a faulty switch board or service other components in thesystem.Steps1. Lower the PCIe switch board into the system.NOTE: Ensure that the tabs on the bottom of the PCIe switch board engage with the notches on the system.2. Slide the PCIe switch board until the connector engages firmly with the pins on the midplane.3. Push the levers until the PCIe switch board locks into place.4. Tighten the two spring-loaded screws to secure the PCIe switch board to the system.Next steps1. Install the following:● PCIe modules● cooling-fan cage● cooling fans● system cover2. Follow the procedure listed in After working inside your system on page 33.Related tasksInstalling a PCIe module on page 46Installing the cooling-fan cage on page 55Installing a cooling fan on page 53Installing the system cover on page 35Related informationRemoving the PCIe switch board on page 56Fan interface boardThe fan interface board is supported on the PowerEdge FX2 enclosure. The following procedure is applicable only to the FX2enclosure.Removing the fan interface boardPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should only performtroubleshooting and simple repairs as authorized in your product documentation, or as directed by the online ortelephone service and support team. Damage due to servicing that is not authorized by Dell is not covered byyour warranty. Read and follow the safety instructions that are shipped with your product.NOTE: This is a field replaceable unit (FRU). Removal and installation procedures must be performed only by Dell certifiedservice technicians.NOTE: You must remove the fan interface board to replace a faulty board or service other components in the system.1. Ensure that you read the Safety instructions on page 33.2. Follow the procedure listed in Before working inside your system on page 33.3. Remove the following:● system cover● cooling fans● cooling-fan cage58 Installing and removing PowerEdge FX2/FX2s enclosure components