Lenovo 32GB 4800MHz DDR5 PC5-38400 ECC Registered CL40 288-Pin 1.1V DIMM Single Rank Memory Module – 4X77A77483

Lenovo 32GB DDR5-4800 ECC Registered DIMM 1.1V — 4X77A77483

The Lenovo 4X77A77483 is a 32GB DDR5-4800 (PC5-38400) ECC Registered DIMM operating at 1.1V with CL40 latency in a single rank configuration. Designed for Lenovo ThinkSystem servers supporting DDR5-4800 RDIMM at 1.1V, it delivers first-generation DDR5 server memory with ECC reliability and the bandwidth advantages of DDR5 for enterprise workloads.

Key Features

• 32GB DDR5-4800 (PC5-38400) — first-generation DDR5 server RDIMM
• ECC Registered (RDIMM) — error correction and signal buffering
• Single Rank — optimized for maximum channel compatibility
• 1.1V operating voltage — DDR5 standard voltage
• CL40 latency
• 288-pin DIMM — DDR5 server memory interface
• Validated for Lenovo ThinkSystem servers

Product Specifications

• Part Number: 4X77A77483
• Manufacturer: Lenovo
• OEM Status: OEM Lenovo ThinkSystem
• Capacity: 32GB
• Speed: DDR5-4800 (PC5-38400)
• Type: ECC Registered DIMM (RDIMM)
• Form Factor: 288-Pin DIMM
• Voltage: 1.1V
• CAS Latency: CL40
• Rank: Single Rank

Memory Specifications

• Capacity: 32GB
• DDR Generation: DDR5
• Speed: 4800MHz (PC5-38400)
• CAS Latency: CL40
• Voltage: 1.1V
• ECC: Yes
• Buffered: Registered (RDIMM)
• Rank: Single Rank
• Form Factor: 288-Pin DIMM

Performance Specifications

• Bandwidth: Up to 38,400 MB/s (PC5-38400)
• Operating Temperature: 0°C to 85°C

Use Cases

• DDR5 server memory for Lenovo ThinkSystem DDR5-4800 platforms
• Virtualization, database, and analytics workloads on DDR5 servers
• First-generation DDR5 RDIMM for ThinkSystem DDR5 deployments

Compatibility

• Lenovo ThinkSystem servers supporting DDR5-4800 RDIMM at 1.1V
• Not compatible with DDR4 slots or consumer platforms
• Verify Lenovo ThinkSystem compatibility matrix for specific server models

Frequently Asked Questions

What is the difference between 4X77A77483 and 4X77A77029?

Both are Lenovo DDR5-4800 ECC Registered Single Rank DIMMs — 4X77A77483 is 32GB while 4X77A77029 is 16GB. Verify specific server model validation from Lenovo”s compatibility matrix.

Why is DDR5 voltage 1.1V instead of 1.2V?

DDR5 operates at a lower standard voltage of 1.1V compared to DDR4”s 1.2V, improving power efficiency while delivering higher bandwidth. DDR5 and DDR4 are not interchangeable.

Is this compatible with non-Lenovo servers?

This is an OEM Lenovo ThinkSystem RDIMM validated for ThinkSystem servers. Compatibility with non-Lenovo servers is not guaranteed.

The Lenovo 4X77A77483 delivers 32GB of DDR5-4800 ECC Registered server memory at 1.1V in a single rank configuration — validated for Lenovo ThinkSystem DDR5-4800 servers requiring first-generation DDR5 RDIMM for enterprise workloads.