RAM & Storage Compatibility for Lenovo ThinkStation P620
The Lenovo ThinkStation P620 is a Tower Workstation supporting AMD Threadripper PRO 5000WX processors. It uses ECC DDR4 RDIMM memory across 8 DIMM slots, with a maximum capacity of 1TB at 3200 MHz. ECC (Error-Correcting Code) memory is required for data integrity in mission-critical workloads.
Memory Specifications
| Specification | Details |
|---|---|
| Memory Type | ECC DDR4 RDIMM |
| DIMM Slots | 8 |
| Max Capacity | 1TB |
| Speed | 3200 MHz |
| CPU Support | AMD Threadripper PRO 5000WX |
| Form Factor | Tower Workstation |
| M.2 Slots | 2 |
Recommended Memory
Best ECC RAM: Samsung DDR4-3200 RDIMM 32GB
Server-grade ECC RDIMM with Samsung B-die for maximum reliability. Tested compatible with Lenovo systems.
Best Value: Kingston Server Premier DDR4-3200 ECC RDIMM 32GB
Cost-effective server memory backed by Kingston’s lifetime warranty and server compatibility testing.
Storage Options

The Lenovo ThinkStation P620 has 2 M.2 slots for NVMe SSDs, plus multiple SATA and SAS ports for traditional drives and RAID arrays.
Best Enterprise SSD: Samsung PM9A3 960GB NVMe
Enterprise-grade NVMe SSD with power-loss protection, high endurance, and consistent performance under heavy workloads.
Frequently Asked Questions
What type of RAM does the Lenovo ThinkStation P620 use?
The Lenovo ThinkStation P620 uses ECC DDR4 RDIMM at 3200 MHz across 8 DIMM slots. ECC memory is required — standard desktop RAM will not work.
What is the maximum RAM for the Lenovo ThinkStation P620?
The maximum supported RAM is 1TB across 8 slots.
Related Lenovo Upgrade Guides
- Lenovo ThinkStation P360 Tower
- Lenovo ThinkStation P8
- Lenovo ThinkStation P5
- Lenovo ThinkStation PX
- Lenovo ThinkStation P920
- Lenovo Upgrade Guide
Not sure what fits? Use our free Compatibility Checker covering 3,195+ models.





