Lenovo ThinkServer RD450 (English) User Guide and Hardware Maintenance Manual - Page 84

8. Pivot the tabs of the system fan cage to the front of the server to secure the system fan cage. Figure 38. Securing the system fan cage What to do next: • To work with another piece of hardware, go to the appropriate section. • To complete the replacement, go to "Completing the parts replacement" on page 165. Installing or removing a memory module This topic provides instructions on how to install or remove a memory module. Note: The memory modules are extremely sensitive to ESD. Ensure that you read and understand "Handling static-sensitive devices" on page 60 first and carefully perform the operation. Memory module installation rules Your server has 16 memory slots and it has the following features: • Each slot supports 4 GB, 8 GB, and 16 GB double data rate 4 registered dual inline memory modules (DDR4 RDIMMs) with Error Checking and Correcting (ECC) technology. • Each slot supports 32 GB double data rate 4 load reduction dual inline memory modules (DDR4 LRDIMMs) with Error Checking and Correcting (ECC) technology. • Your server supports up to 8 memory modules when one microprocessor is installed. Supports up to 16 memory modules when two microprocessors are installed. • The minimum system memory is 4 GB (only one microprocessor installed and only one 4 GB RDIMM installed in the CPU1 DIMMA1 slot). • The maximum system memory is 512 GB (two microprocessors installed and one 32 GB LRDIMM installed in each of the 16 memory slots). For more information about the memory modules in your specific server model, use the Setup Utility program. See "Viewing information in the Setup Utility program" on page 47. For a list of the supported ThinkServer memory module options, go to: http://lenovoquickpick.com/usa/home/thinkserver/rack-and-tower-server Before installing a memory module, ensure that you observe the following guidelines: 70 ThinkServer RD450 User Guide and Hardware Maintenance Manual