Table 1. Specifications (continued)
Specification
Description
Processor
Supports multi-core Intel Xeon processors, with integrated memory controller and Intel
Mesh UPI (Ultra Path Interconnect) topology.
• Supports up to two 250W processors
• Designed for the LGA 4189 socket
• Scalable up to 52 cores (with two processors installed)
• Supports up to 4 UPI links at 11.2 GT/s
Notes:
• Only two-socket type CPUs are supported in two CPU configurations.
• UPI function is only available when two or more processors are installed.
For a list of supported processors, see:
https://static.lenovo.com/us/en/serverproven/index.shtml
Memory
• Minimum: 16 GB
• Maximum:
– 2048 GB using registered DIMMs (RDIMMs)
– 3072 GB using registered DIMMs (RDIMMs) and Persistent Memory Modules
(PMEM)
• Slots: thirty-two DIMM slots
• Supports:
– 16 GB, 32 GB, 64 GB TruDDR4 3200 MHz RDIMM
– 128 GB Persistent Memory Modules (PMEM)
For a list of supported memory modules, see:
https://static.lenovo.com/us/en/serverproven/index.shtml
Drive bays (varies by
model)
Drive bays and drives supported by your server vary by model.
• Storage drive bays:
– Server models with 3.5-inch simple-swap drive bays
– Supports up to twelve SATA drives
– Server models with 3.5-inch hot-swap drive bays
– Supports up to sixteen SAS/SATA drives
– Supports up to eight SAS/SATA drives and eight NVMe drives
– Server models with 2.5-inch hot-swap drive bays
– Supports up to thirty-two SAS/SATA drives
– Supports up to sixteen SAS/SATA drives and sixteen NVMe drives
• Optical drive bays
– Two optical drive bays
– Supports up to one tape drive (RDX or LTO) and one optical disk drive
Notes:
• The server supports the installation of 2.5-inch SSDs in a 3.5 inch disk bay through
the use of a conversion kit. See “Install a 2.5-inch drive into a 3.5-inch drive bay” on
page 65 for details.
• When GPUs are installed, only two backplanes or backplates are supported and no
optical drive or tape drive can be installed.
2 ThinkSystem ST650 V2 Maintenance Manual