Lenovo ThinkAgile VX7820 User Manual page 14

Table 1. Server Specifications (continued)
Specification
Memory
Drive expansion
User Guide for ThinkAgile VX7820 Appliance, ThinkAgile VX 4-Socket 4U Certified Node
4
Description
• Minimum: 32 GB
• Maximum:
– 3.1 TB using registered DIMMs (RDIMMs) or load reduction DIMMs (LRDIMMs)
– 12.3 TB using three-dimensional-stacking registered DIMMs (3DS RDIMMs)
– 18.4 TB using Intel® Optane
• Type:
– PC4-21300 (DDR4-2666), operating speed depends on processor model and
UEFI settings
– Single-rank or dual-rank
– Registered DIMM (RDIMM), load reduced DIMM (LRDIMM), or three-
dimensional-stacking registered DIMM (3DS RDIMM)
• Slots: 24 dual inline in each compute tray (48 DIMMs, maximum)
• Supports (depending on the model):
– 16 GB, 32 GB, 64 GB RDIMMs
– 64 GB LRDIMMs
– 64 GB, 128 GB, 256 GB 3DS RDIMMs
– 128 GB, 256 GB, and 512 GB Intel® Optane
(DCPMMs)
• Up to six SAS/SATA/NVMe drive backplanes:
• Up to 24 2.5-inch hot-swap drive bays:
– Up to 24 SATA/SAS drives (dependent on installed drive backplanes)
– Up to 12 NVMe drives (dependent on installed drive backplanes)
See "Configurations" on page 8 for more details.
DC persistent memory modules (PMMs)
TM
TM DC persistent memory modules