Figure 9. Removing and installing the cooling shroud1. cooling shroudInstalling the cooling shroudCAUTION: 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.NOTE: For proper seating of the cooling shroud in the chassis, ensure that the cables inside thesystem are routed along 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 attachedperipherals.System memoryYour system supports DDR3 unbuffered, registered DIMMs. It supports DDR3 and DDR3L voltagespecifications.NOTE: MT/s indicates DIMM speed in MegaTransfers per second.Memory bus operating frequency is 1333 MT/s, depending on:• DIMM configuration (number of ranks)• Maximum frequency of the DIMMs• Number of DIMMs populated per channel• DIMM operating voltage• System profile selected (for example, Performance Optimized, Custom, or Dense ConfigurationOptimized)• Maximum supported DIMM frequency of the processors32
