1. Turn off the system, including any attached peripherals, and disconnect the system from the electrical outlet andperipherals.2. Open the system.3. If installed, remove the full-length PCIe card.4. Hold the touch points and lift the shroud away from the system.Figure 10. Removing and Installing the Cooling Shroud1. cooling shroud2. supports for a full-length PCIe cardInstalling The Cooling ShroudCAUTION: 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 by yourwarranty. Read and follow the safety instructions that came with the product.NOTE: For proper seating of the cooling shroud in the chassis, ensure that the cables inside the system are routedalong the chassis wall and secured using the cable securing bracket.1. Align the tabs on the cooling shroud with the securing slots on the chassis.2. Lower the cooling shroud into the chassis until it is firmly seated.3. If applicable, replace the full-length PCIe card.4. Close the system.5. Reconnect the system to its electrical outlet and turn the system on, including any attached peripherals.System MemoryYour system supports DDR3 registered DIMMs (RDIMMs).Memory bus operating frequency is 1600 MT/s.NOTE: MT/s indicates DIMM speed in MegaTransfers per second.33