Upgrade your Lenovo ThinkSystem SD650 RAM

Upgrade your Lenovo ThinkSystem SD650 server with high-quality, compatible RAM to boost your system's performance and reliability. Whether you're looking to increase memory capacity for handling resource-intensive applications, enhance speed for faster data processing, or ensure consistent performance in demanding environments, our memory modules are precisely designed to meet your server's specific requirements. With options for RDIMM you can select the optimal configuration to maximize your server's performance, maintain compatibility, and ensure operational efficiency.

Lenovo ThinkSystem SD650 Memory Configuration

Below are the memory configuration details for the Lenovo ThinkSystem SD650. Review the supported slots, memory capacities, and compatible speeds to find the best match for your requirements.

RAM Slots

16 DIMMs

Supported Memory Types

RDIMM

Maximum Memory Size

RDIMM: 2TB (16 × 128GB) and LRDIMM: 1TB (16 × 64GB)

Maximum Memory Speed

DDR4-3200

Supported Memory Speed

DDR4-2666, DDR4-2933, DDR4-3200

Supported DIMMs

RDIMM: 16GB to 128GB

Need more details? Explore the Lenovo ThinkSystem SD650 Technical Guide for in-depth specifications and insights.

Find Your Lenovo ThinkSystem SD650 RAM Upgrade

Filter Compatible Memory by Size, Speed, Form Factor, or Brand, then:

  • Add to Order Basket – build your list in a few clicks
  • Submit Order Request – no payment yet; we review & prepare a quote
  • Receive Quote for Approval – price & lead-time, usually within ≤ 2 hrs
  • Approve & Pay – once approved, we invoice (Bank Transfer, PayPal, Card)
  • Dispatch – DHL / FedEx, typically 1–7 days (after payment or per agreed terms)
Form Factor
Form Factor
Memory Size
Memory Size
Memory Speed
Memory Speed
Organization
Organization
Memory Voltage
Memory Voltage
Brand
Brand
PicturePart NumberBrandSizeSpeedForm FactorPrice
SBB7A01184 Lenovo 8GB DDR4-2666 ECC RDIMM Compatible Server Memory
Lenovo8GBDDR4-2666RDIMM
4X77A12187 Lenovo 128GB DDR4-2933 ECC RDIMM Compatible Server Memory
Lenovo128GBDDR4-2933RDIMM
7X77A01302 Lenovo 16GB DDR4-2666 ECC RDIMM Compatible Server Memory
Lenovo16GBDDR4-2666RDIMM
4ZC7A15113 Lenovo 128GB DDR4-2933 ECC RDIMM Compatible Server Memory
Lenovo128GBDDR4-2933RDIMM
M393AAG40M32-CAE Samsung 128GB DDR4-3200 ECC RDIMM Server Memory
Samsung128GBDDR4-3200RDIMM

771.00 

M393A8G40BB4-CWE Samsung 64GB DDR4-3200 ECC RDIMM Server Memory
Samsung64GBDDR4-3200RDIMM

193.00 

M393A8G40MB2-CVF Samsung 64GB DDR4-2933 ECC RDIMM Server Memory
Samsung64GBDDR4-2933RDIMM

187.00 

M393A4K40CB2-CTD Samsung 32GB DDR4-2666 ECC RDIMM Server Memory
Samsung32GBDDR4-2666RDIMM

185.00 

M393A8G40CB4-CWE Samsung 64GB DDR4-3200 ECC RDIMM Server Memory
Samsung64GBDDR4-3200RDIMM

181.00 

M393A8G40AB2-CVF Samsung 64GB DDR4-2933 ECC RDIMM Server Memory
Samsung64GBDDR4-2933RDIMM

181.00 

M393A8G40AB2-CWE Samsung 64GB DDR4-3200 ECC RDIMM Server Memory
Samsung64GBDDR4-3200RDIMM

178.00 

M393A4K40DB3-CWE Samsung 32GB DDR4-3200 ECC RDIMM Server Memory
Samsung32GBDDR4-3200RDIMM

120.00 

M393A4K40DB2-CVF Samsung 32GB DDR4-2933 ECC RDIMM Server Memory
Samsung32GBDDR4-2933RDIMM

91.00 

M393A4G40AB3-CWE Samsung 32GB DDR4-3200 ECC RDIMM Server Memory
Samsung32GBDDR4-3200RDIMM

87.00 

M393A4K40EB3-CWE Samsung 32GB DDR4-3200 ECC RDIMM Server Memory
Samsung32GBDDR4-3200RDIMM

78.00 

M393A4K40CB2-CVF Samsung 32GB DDR4-2933 ECC RDIMM Server Memory
Samsung32GBDDR4-2933RDIMM

67.00 

M393A2K40DB3-CWE Samsung 16GB DDR4-3200 ECC RDIMM Server Memory
Samsung16GBDDR4-3200RDIMM

64.00 

M393A2K43EB3-CWE Samsung 16GB DDR4-3200 ECC RDIMM Server Memory
Samsung16GBDDR4-3200RDIMM

64.00 

M393A2K40EB3-CWE Samsung 16GB DDR4-3200 ECC RDIMM Server Memory
Samsung16GBDDR4-3200RDIMM

58.00 

M393A2K43CB2-CVF Samsung 16GB DDR4-2933 ECC RDIMM Server Memory
Samsung16GBDDR4-2933RDIMM

56.00 

Need Help Choosing the Right RAM?

Contact our team for personalized assistance.

Manufactured by Industry Leaders

We offer memory modules from Samsung, SK Hynix, and Micron—the same trusted manufacturers behind high-performance computing solutions worldwide. Each module meets strict standards for performance, compatibility, and reliability, ensuring enterprise-grade quality at a competitive price.

Samsung logo – manufacturer of server memory modules
SK Hynix logo – premium DDR4 and DDR5 memory manufacturer
Micron logo – trusted supplier of server-grade RAM

Lenovo ThinkSystem SD650 Memory FAQ

This Lenovo ThinkSystem SD650. Memory FAQ covers the most common questions about memory configuration, types, speeds, and installation tips to help you optimize your server performance.

What Types of RAM Are Supported in the Lenovo ThinkSystem SD650?

  • The Lenovo ThinkSystem SD650 supports RDIMM (Registered DIMMs).

Which Memory Speeds Are Compatible With the Lenovo ThinkSystem SD650?

  • The server supports DDR4-2666, DDR4-2933, DDR4-3200.
  • Keep in mind that if different speeds are mixed, all modules operate at the slowest DIMM speed.

What Is the Maximum Supported RAM Capacity for the Lenovo ThinkSystem SD650?

  • Up to 2TB (16 × 128GB) with RDIMMs.
  • Up to 1TB (16 × 64GB) with LRDIMMs.

How do I achieve the best performance for my Lenovo ThinkSystem SD650?

  • Populate DIMMs evenly across all channels and use the highest supported speed compatible with your CPU.

What is RDIMM?

  • RDIMM (Registered DIMM): Registered DIMMs are memory modules with an additional register between the memory controller and the DRAM. This register reduces the electrical load on the memory controller, allowing for better stability and scalability in servers. RDIMMs are commonly used in environments that require high reliability and performance.

General DIMM Population Guidelines for Lenovo ThinkSystem SD650

  • Do Not Mix RDIMMs
  • If mixing memory speeds, all DIMMs will operate at the lowest speed.
  • Install DIMMs starting furthest from the processor.
  • Populate DIMMs evenly across all channels.
  • Ensure all CPUs have memory installed for their DIMM slots to function.

Lenovo ThinkSystem SD650 Memory Installation Steps

  • Power Off the server and disconnect it from power.
  • Wear ESD Gear: Use an ESD wrist strap and work in an ESD-safe environment.
  • Open the server and locate the DIMM slots.
  • Inspect the slots for dust or debris and ensure proper alignment of the DIMMs.
  • Follow the DIMM population order in the server manual.
  • Firmly insert DIMMs until they click. Avoid using excessive force.
  • Close the server and reconnect power.
  • Verify the memory configuration in the BIOS.

Still have questions about upgrading your Lenovo ThinkSystem SD650 memory? Contact us for advice or request a quote for compatible memory modules.

Order Summary