System Memory - Dell Precision 7920 Rack Owner's Manual

• General Purpose Input Output (GPIO)
• Low Pin Count interface, interrupt controller, and timer functions
• System Management Bus Specification, Version 2.0
• Integrated Clock Controller / Real Time Clock Controller
• Intel® High Definition Audio and Intel® Smart Sound Technology
• Integrated 10/1 Gb Ethernet
• Integrated 10/100/1000 Mbps Ethernet MAC
• Supports Intel® Rapid Storage Technology Enterprise
• Supports Intel® Active Management Technology and System Platform Services
• Supports Intel® Virtualization Technology for Directed I/O
• Supports Intel® Trusted Execution Technology
• JTAG Boundary Scan support
• Intel® QuickAssist Technology
• Intel® Trace Hub for debug
For more information, visit Intel.com

System memory

The system supports DDR4 registered DIMMs (RDIMMs) and load reduced DIMMs (LRDIMMs). System memory holds the instructions
that are executed by the processor.
NOTE: MT/s indicates DIMM speed in MegaTransfers per second.
Memory bus operating frequency can be 2133 MT/s, 2400 MT/s, or 2666 MT/s depending on the following factors:
• DIMM type (RDIMM or LRDIMM)
• Number of DIMMs populated per channel
• System profile selected (for example, Performance Optimized, Custom, or Dense Configuration Optimized)
• Maximum supported DIMM frequency of the processors
Your system contains 24 memory sockets split into two sets of 12 sockets, one set per processor. Each 12-sockets is organized into six
channels. Two sockets per channel with the release tabs of the first socket marked white and the second socket black.
NOTE: DIMMs in sockets A1 to A12 are assigned to processor 1 and DIMMs in sockets B1 to B12 are assigned to processor 2.
Table 16. Maximum memory module
Frequency supported
2133
2400
2400
2666
Memory channels are organized as follows:
Table 17. Memory channels
Processor Channel 0
CPU 1 Slots A1, A7
CPU2 Slots B1, B7
88 Technology and components
Channel 1 Channel 2
Slots A2, A8 Slots A3, A9
Slots B2, B8 Slots B3, B9
Processors
31xx series
41xx series
51xx series
61xx series
Channel 3
Slots A4, A10
Slots B4, B10
Channel 4 Channel 5
Slots B5, A11 Slots A6, A12
Slots B5, B11 Slots B6, B12