Owners Manual
Next steps
1 Reinstall the cooling shroud.
2 If removed, reinstall the optional PCIe expansion card riser.
3 If disconnected, connect the cables to the expansion card(s).
4 If required, open the expansion-card latch on the cooling shroud to support the full length expansion card.
5 Follow the procedure listed in the After working inside your system section.
Installing the cooling shroud
Prerequisites
CAUTION: Many repairs may only be done by a certied service technician. You should only perform troubleshooting and simple
repairs as authorized in your product documentation, or as directed by the online or telephone service and support team.
Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow the safety instructions
that are shipped with your product.
1 Follow the safety guidelines listed in the Safety instructions section.
2 Follow the procedure listed in the Before working inside your system section.
3 If applicable, route the cables inside the system along the chassis wall and secure the cables by using the cable-securing bracket.
Steps
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 rmly seated.
When rmly seated, the memory socket numbers marked on the cooling shroud align with the respective memory sockets.
Next step
1 Follow the procedure listed in the After working inside your system section.
System memory
Your system supports DDR4 ECC unbuered DIMMs (RDIMMs).
NOTE
: MT/s indicates memory module speed in Mega Transfers per second.
Memory bus operating frequency can be 2133 MT/s, 1866 MT/s, or 1600 MT/s depending on the following factors:
• System prole selected (for example, Performance Optimized, Custom, or Dense Conguration Optimized)
• Maximum supported memory module frequency of the processors
The system contains four memory sockets — two sets of 2–sockets each. Each 2–socket set is organized into one channel. In each 2-
socket set, the rst socket release lever is marked white and the second socket release lever is marked black.
Installing and removing system components
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