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10 Oct 2024Form Number
LP1021PDF size
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Abstract
Memory reliability, performance and quality are even more critical today as customers utilize greater memory capacities for Big Data Analytics, Cloud Computing, Virtualization, Database and High Performance Computing workloads. Lenovo offers TruDDR5 and TruDDR4 Memory portfolio for ThinkSystem servers which help dramatically improve workload performance.
Change History
Changes in the October 10, 2024 update:
- Added the following DIMMs - 6400 MHz DDR5 memory for AMD servers section:
- ThinkSystem 64GB TruDDR5 6400MHz (2Rx4) RDIMM-A, 4X77A93528
- ThinkSystem 32GB TruDDR5 6400MHz (1Rx4) RDIMM-A, 4X77A93526
- ThinkSystem 96GB TruDDR5 6400MHz (2Rx4) RDIMM-A, 4X77A93533
- ThinkSystem 128GB TruDDR5 6400MHz (2Rx4) RDIMM-A, 4X77A93529
- ThinkSystem 16GB TruDDR5 6400MHz (1Rx8) RDIMM-A, 4X77A93525
- ThinkSystem 32GB TruDDR5 6400MHz (2Rx8) RDIMM-A, 4X77A93527
- ThinkSystem 48GB TruDDR5 6400MHz (2Rx8) RDIMM-A, 4X77A93532
Introduction
ThinkSystem TruDDR5 and TruDDR4 memory delivers trusted, tested, quality, performance, and reliability throughout the ThinkSystem portfolio. We use the highest quality industry-standard memory components sourced from Tier 1 DRAM suppliers. Only memory that meets these strict requirements are selected for memory in Lenovo servers. It is then compatibility tested and tuned on every ThinkSystem server to maximize reliability.
In addition, Lenovo memory DIMMs for servers have a unique signature programmed into them so your system can verify that TruDDR5 and TruDDR4 memory is installed in your system. Since the memory will be authenticated, memory stretch goals are enabled only when TruDDR4 memory DIMMs are detected. Together with lower power consumption, these new DIMMs can provide the lowest TCO for data centers.
Figure 1. Lenovo TruDDR4 memory DIMM
High Performance Memory
Lenovo offers high-performance and high-capacity memory options in ThinkSystem servers.
Performance+ Memory
Memory intensive workloads needing a competitive advantage will benefit from Lenovo’s Performance+ memory. Lenovo engineers worked in partnership with leading memory suppliers to develop and tune ThinkSystem servers enabling them to exceed the latest industry standard for memory performance.
In ThinkSystem V3 servers with 5th Gen Intel Xeon Scalable processors, Lenovo’s Performance+ memory delivers increased memory speed at up to 4800 MHz with two memory channels populated.
Persistent Memory
Lenovo ThinkSystem servers configured with Intel Optane Persistent Memory transforms the memory/storage hierarchy enabling faster insights from data. This breakthrough technology delivers large capacity, high speed, affordable memory with data persistence and advanced encryption capabilities. These modules significantly increase the capacity of available system memory, keeping more hot data closer to the CPU, and enabling greater operational efficiency by processing larger data sets with more user instances.
3DS RDIMMs
To meet the ever increasing demand for higher density server memory modules, Lenovo offers 3DS (3 Dimensional Stacked) DDR4 RDIMMs which apply TSV (Through Silicon Via) technology from our partnership with a leading Tier 1 DRAM supplier. The new TSV 3DS stack technology enables higher density DRAM stack packages with higher operational frequency and reduced power consumption. The RDIMM configuration along with 3DS TSV DRAM packages exhibits performance benefits and lower power consumption over alternative high density solutions to ultimately provide the lowest TCO for data centers.
Figure 2. Intel Optane Persistent Memory
Part Number Information
The following tables list the ordering information:
- 6400 MHz DDR5 memory for AMD servers
- 5600 MHz DDR5 memory for Intel servers
- 4800 MHz DDR5 memory for Intel servers
- 4800 MHz DDR5 memory for AMD servers
- 3200 MHz DDR4 memory for Intel servers
- 3200 MHz DDR4 memory for AMD servers
- 2933 MHz DDR4 memory for Intel servers
- 2933 MHz DDR4 memory for AMD servers
- 2666 MHz DDR4 memory
- Intel Optane Persistent Memory 300 Series (4400 MHz)
- Intel Optane Persistent Memory 200 Series (3200 MHz)
- Intel Optane Persistent Memory 100 Series (2666 MHz)
6400 MHz DDR5 memory for AMD servers
For more information on DDR5 memory, see the Lenovo Press paper, Introduction to DDR5 Memory, available from https://lenovopress.com/lp1618.
5600 MHz DDR5 memory for Intel servers
For more information on DDR5 memory, see the Lenovo Press paper, Introduction to DDR5 Memory, available from https://lenovopress.com/lp1618.
4800 MHz DDR5 memory for Intel servers
9x4 RDIMMs (also known as EC4 RDIMMs) are a new lower-cost DDR5 memory option supported in ThinkSystem V3 servers. 9x4 DIMMs offer the same performance as standard RDIMMs (known as 10x4 or EC8 modules), however they support lower fault-tolerance characteristics. Standard RDIMMs and 3DS RDIMMs support two 40-bit subchannels (that is, a total of 80 bits), whereas 9x4 RDIMMs support two 36-bit subchannels (a total of 72 bits). The extra bits in the subchannels allow standard RDIMMs and 3DS RDIMMs to support Single Device Data Correction (SDDC), however 9x4 RDIMMs do not support SDDC. Note, however, that all DDR5 DIMMs, including 9x4 RDIMMs, support Bounded Fault correction, which enables the server to correct most common types of DRAM failures.
For more information on DDR5 memory, see the Lenovo Press paper, Introduction to DDR5 Memory, available from https://lenovopress.com/lp1618.
4800 MHz DDR5 memory for AMD servers
9x4 RDIMMs (also known as Optimized or EC4 RDIMMs) are a new lower-cost DDR5 memory option supported in ThinkSystem V3 servers. 9x4 DIMMs offer the same performance as standard RDIMMs (known as 10x4 or EC8 modules), however they support lower fault-tolerance characteristics. Standard RDIMMs and 3DS RDIMMs support two 40-bit subchannels (that is, a total of 80 bits), whereas 9x4 RDIMMs support two 36-bit subchannels (a total of 72 bits). The extra bits in the subchannels allow standard RDIMMs and 3DS RDIMMs to support Single Device Data Correction (SDDC), however 9x4 RDIMMs do not support SDDC. Note, however, that all DDR5 DIMMs, including 9x4 RDIMMs, support Bounded Fault correction, which enables the server to correct most common types of DRAM failures.
For more information on DDR5 memory, see the Lenovo Press paper, Introduction to DDR5 Memory, available from https://lenovopress.com/lp1618.
3200 MHz DDR4 memory for Intel servers
3200 MHz DDR4 memory for AMD servers
2933 MHz DDR4 memory for Intel servers
2933 MHz DDR4 memory for AMD servers
2666 MHz DDR4 memory
Intel Optane Persistent Memory 300 Series (4400 MHz)
Intel Optane Persistent Memory 200 Series (3200 MHz)
Intel Optane Persistent Memory 100 Series (2666 MHz)
* Configure-to-order only, not available as a field upgrade.
Server Support
Configurations notes:
- Some 2666 MHz memory is only supported with Gen 1 Xeon Scalable processors (codenamed "Skylake"), whereas other 2666 MHz memory is only supported with Gen 2 Xeon Scalable processors (codenamed "Cascade Lake"). These are indicated with the (1) and (2) footnotes in the table, respectively.
- 2933 MHz memory is not supported by Intel Xeon SP Gen 1 processors
- The support of 32GB UDIMMs on ST50, ST250, SR150 and SR250 requires a Intel Xeon E Series processor and UEFI firmware ISE114H or later
- 2666 MHz Persistent Memory is only supported by Intel Xeon SP Gen 2 processors
- 3200 MHz Persistent Memory is only supported by Intel Xeon SP Gen 3 processors
- Some servers support mixing memory speeds; all memory will operate at the lowest speed
Note: Lenovo branded memory shipped as option part numbers, as FRU service parts, or installed in the factory as part of a CTO order, may contain memory parts that exceed the technical specification of what is printed on the DIMM label or is stated in the DIMM ordering information. Your server's system UEFI firmware may need to be updated to support such DIMMs. See Lenovo Support Tip HT509191 for additional information.
The following tables list the ThinkSystem servers that are compatible, grouped by server form factor or processor - Part 1, Part 2, Part 3, and Part 4.
- Only supported with second generation Intel Xeon Scalable processors ("Cascade Lake") and not supported with first generation Intel Xeon Scalable processors ("Skylake")
- Supported in the SR635 and SR655 only with an EPYC 7002 processor. Not supported with an EPYC 7003 processor.
- Only supported with first generation Intel Xeon Scalable processors ("Skylake") and not supported with second generation Intel Xeon Scalable processors ("Cascade Lake")