Steps1. Orient the PCIe mezzanine card support bracket toward the back of the system.2. Align the tabs on the PCIe mezzanine card support bracket with the slots on the system and slide ituntil the tabs on the support bracket engage with the slots on the system.3. Install the screw to secure the PCIe mezzanine card support bracket on the system board.Next steps1. Install the PCIe mezzanine card.Related LinksRemoving the PCIe mezzanine card support bracketIDSDM card (optional)The Internal Dual SD Module (IDSDM) card provides two SD card slots and a USB interface dedicated forthe embedded hypervisor. This card offers the following features:• Dual card operation—maintains a mirrored configuration using SD cards in both slots and providesredundancy.• Single card operation—single card operation is supported, but without redundancy.Replacing an SD cardPrerequisitesCAUTION: Many repairs may only be done by a certified service technician. You should onlyperform troubleshooting and simple repairs as authorized in your product documentation, or asdirected by the online or telephone service and support team. Damage due to servicing that isnot authorized by Dell is not covered by your warranty. Read and follow the safety instructionsthat came with the product.1. Ensure that you read the Safety instructions.2. Follow the procedure listed in Before working inside your system.3. Enter the System Setup and ensure that the Internal SD Card Port is enabled.CAUTION: When an SD card failure occurs, and the Internal SD Card Redundancy option in theIntegrated Devices screen of the System Setup is set to Mirror Mode, there may be loss of data. Toavoid data loss, follow step 4 through step 6 of Troubleshooting an internal SD card.NOTE: The SD card in the lower card slot is the primary card (SD1) and the SD card in the uppercard slot is the secondary card (SD2).NOTE: When an SD card failure occurs, the Internal SD Card Redundancy option in the SystemSetup is set to Disabled and the internal dual SD module controller notifies the system. On the nextreboot, the system displays a message indicating the failure.NOTE: If the Internal SD Card Redundancy option is set to Disabled, replace the failed SD card witha new SD card.Steps1. Locate the SD card slot on the internal dual SD module (IDSDM) card.2. Press inward on the card to release it from the slot, and remove the card.61