Lenovo ThinkSystem 32GB TruDDR5 4800MHz 1Rx4 10x4 RDIMM
- • Capacity: 32 GB server memory
- • Memory Type: Lenovo TruDDR5 RDIMM
- • Speed: 4800 MHz
- • Organization: 1Rx4, 10x4 RDIMM
- • Lenovo Part Number: 4X77A77030
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- Availability:
- In Stock
- Product Code:
- 4X77A77030
- Brand:
- Lenovo
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The Lenovo ThinkSystem 32GB TruDDR5 4800MHz 1Rx4 10x4 RDIMM is a server memory option designed for supported Lenovo ThinkSystem platforms. It provides 32 GB of DDR5 registered memory with a rated speed of 4800 MHz.
Part number 4X77A77030 uses a 1Rx4, 10x4 RDIMM configuration and is part of Lenovo's TruDDR5 memory portfolio for compatible ThinkSystem server configurations.

Key Features
- 32 GB Capacity: Adds 32 GB of server memory to a supported ThinkSystem configuration.
- TruDDR5 Memory: Lenovo ThinkSystem DDR5 server memory option.
- 4800 MHz Rated Speed: Designed as a 4800 MHz memory option for supported configurations.
- RDIMM: Registered DIMM designed for compatible enterprise server platforms.
- 1Rx4 Organization: Uses a single-rank x4 memory organization.
- 10x4 Configuration: Lenovo identifies this exact module as a 10x4 RDIMM.
Technical Specifications
| Component | Specification |
| Brand | Lenovo |
| Product Family | ThinkSystem |
| Part Number | 4X77A77030 |
| Feature Code | BNF6 |
| Product Type | Server Memory |
| Capacity | 32 GB |
| Memory Type | TruDDR5 |
| Memory Speed | 4800 MHz |
| DIMM Type | RDIMM |
| Rank / Organization | 1Rx4 |
| RDIMM Configuration | 10x4 |
| DRAM Technology | 16 Gb |
Compatibility & Important Information
Lenovo ServerProven lists part number 4X77A77030 for supported ThinkSystem SR630 V3, SR650 V3, SR850 V3, SR860 V3 and ST650 V3 platforms.
Memory support and operating speed depend on the exact server, processor generation and installed memory configuration. The server's Lenovo memory population and mixing rules should be checked before ordering or installing this RDIMM.
| Memory Specifications | |
|---|---|
| Type | DDR5 |
| Capacity | 32 GB |
| Speed | 4800 MHZ |
| Heat Spreader | No |
Q: What capacity does Lenovo 4X77A77030 provide?
A: It provides 32 GB of server memory capacity.
Q: What type of memory is 4X77A77030?
A: It is a Lenovo ThinkSystem TruDDR5 registered DIMM (RDIMM).
Q: What is the rated speed of this memory?
A: Lenovo specifies this memory option at 4800 MHz. Actual supported operating speed depends on the server, processor and memory configuration.
Q: What is the rank configuration?
A: Lenovo identifies 4X77A77030 as a 1Rx4, 10x4 RDIMM.
Q: What is the feature code for 4X77A77030?
A: The Lenovo feature code is BNF6.
Q: Which ThinkSystem servers are listed for this memory in Lenovo ServerProven?
A: Lenovo ServerProven lists SR630 V3 SP4, SR650 V3 SP4, SR850 V3 SP4, SR860 V3 SP4 and ST650 V3 SP4.
Q: Is this memory operating-system dependent?
A: Lenovo ServerProven lists OS support as OS Independent.
Q: Should compatibility be checked before ordering?
A: Yes. Check the exact ThinkSystem model, processor generation and Lenovo memory population rules before ordering or combining this RDIMM with existing memory.













