Figure 4. PCIe Expansion Tray with GPU riser cards installed
Standard specifications
The following table lists the standard specifications.
Table 1. Standard specifications
Components Specification
Machine
types
7X69 - 3 year warranty
7X70 - 1 year warranty
Form factor 4U rack.
Processor Up to four Intel Xeon Processor Scalable Family of processors, either Gold or Platinum level
processors (formerly codename "Skylake"). Supports processors up to 28 cores, core speeds up
to 3.6 GHz, and TDP ratings up to 165W. Two processor sockets on the system board and two
processors on the Processor and Memory Expansion Tray (standard on most models). Two Intel
Ultra Path Interconnect (UPI) links at 10.4 GT/s each. Four processors are connected in a ring
topology.
Chipset Intel C624 "Lewisburg" chipset
Memory Up to 48 DIMM sockets (12 DIMMs per processor) supporting Lenovo TruDDR4 DIMMs at up to
2666 MHz. RDIMMs and LRDIMMs (Load Reduced DIMMs) are supported, but memory types
cannot be mixed. There are 24 DIMM sockets on the system board, and an additional 24 DIMM
sockets on the processor and memory expansion tray (standard on most models).
Memory
maximums
With RDIMMs: Up to 1.5 TB with 48x 32 GB RDIMMs and four processors.
With LRDIMMs: Up to 3.0 TB with 48x 64 GB LRDIMMs and four processors.
Planned support for up to 6.0 TB with 48x 128 GB 3DS RDIMMs (requires M-suffix processors
that support greater than 786 GB memory per processor)
Memory
protection
ECC, SDDC (for x4-based memory DIMMs), ADDDC (for x4-based memory DIMMs), memory
mirroring, and memory sparing.
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