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Standard specifications
The following table lists the standard specifications.
Table 1. Standard specifications
Components Specification
Machine
7X16
Type
Form factor
Standard-width Flex System compute node.
Chassis
Flex System Enterprise Chassis with CMM2.
support
Processor
Up to two Intel Xeon processor Scalable family CPUs: from 4 cores to 28 cores; core speeds from
1.7 GHz to 3.6 GHz; up to 38.5 MB L3 cache. Two UPI links up to 10.4 GT/s each. Up to 2666
MHz memory speed.
Chipset
Intel C624
Memory
Up to 24 DIMM sockets (12 DIMMs on 6 channels per processor) supporting Lenovo TruDDR4
DIMMs at up to 2666 MHz. RDIMMs and LRDIMMs (Load Reduced DIMMs) are supported, but
memory types cannot be intermixed.
Memory
With LRDIMMs: Up to 1.5 TB with 24x 64 GB LRDIMMs and two CPUs
maximums
With RDIMMs: Up to 768 GB with 24x 32 GB RDIMMs and two CPUs
Planned support for up to 3 TB with 24x 128 GB RDIMMs (requires M-suffix processors
that support greater than 786 GB memory per processor)
Memory
ECC, SDDC (for x4-based memory DIMMs), memory mirroring, and memory sparing.
protection
Disk drives
Two 2.5-inch hot-swap drive bays supporting SSDs or HDDs. Drive bay can be either SATA only,
SAS/SATA or NVMe/SATA, depending on the model. Optional support for up to two M.2 SSD.
Maximum
With two 2.5-inch hot-swap drives: Up to 30.72 TB using 2x 15.36 TB 2.5-inch SAS SSDs
internal
or up to 4 TB using 2x 2 TB NL SAS HDDs.
storage
With two 2.5-inch NVMe SSDs: Up to 7.68 TB using 2x 3.84 TB PCIe 2.5-inch SSDs.
With two internal Non-Hot-Swap M.2: Up to 256 GB using 2x 128 GB SATA SSDs.
No support for the Flex System Storage Expansion Node.
RAID support RAID-0 and RAID-1
Network
Embedded Intel X722 10 GbE (model specific); optional 1 Gb, 10 GbE, or 40 GbE adapters.
interfaces
PCI
Two I/O connectors for adapters. PCI Express 3.0 x16 interface. No support for the Flex System
Expansion
PCIe Expansion Node.
slots
Ports
Front: One USB 3.0 port and one console breakout cable port that provides local KVM and serial
ports (cable standard with chassis; more cables optional).
Systems
UEFI, Lenovo XClarity Provisioning Manager, Lenovo XClarity Controller with Pilot4
management
XE401 baseboard management controller (BMC), Predictive Failure Analysis, light path
diagnostics panel, automatic server restart, remote presence. Support for Lenovo XClarity
Administrator and Lenovo XClarity Energy Manager.
Security
Power-on password, administrator's password, Trusted Platform Module (TPM) 1.2 and 2.0,
features
Trusted Cryptographic Module (TCM) - China only.
Lenovo ThinkSystem SN550 Server
6
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