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Cisco

Cisco C890-M5-256G-DIMM | UCS C890 M5 | 256GB DDR4 ECC LRDIMM (3DS), up to 2933 MT/s, 1.2V

SKU:C890-M5-256G-DIMM

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Description

High-density 256GB DDR4 ECC LRDIMM designed for UCS C890 M5 servers, enabling large memory footprints for virtualization, databases, and in-memory analytics. 3DS (through-silicon stacked) construction delivers high capacity with low-latency reliability. Operates up to 2933 MT/s depending on CPU and BIOS; auto-negotiates to supported speeds. Follow platform memory population rules for channel balance and performance.

Features

- Ultra-high 256GB capacity per module for dense memory footprints
- ECC for data integrity in enterprise workloads
- 3DS stacking for higher capacity with stable performance
- Up to 2933 MT/s for bandwidth-hungry applications
- Optimized for UCS C890 M5 memory architecture

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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FAQs

Technical Specifications

FAQs

Q: Can I mix this LRDIMM with RDIMMs?
A: No. Mixing LRDIMM and RDIMM in the same system is not supported. Use only one DIMM type across all slots.

Q: Will it always run at 2933 MT/s?
A: Maximum speed depends on CPU generation, memory configuration, and BIOS settings. The module will downclock as required by the platform.

Q: Is this compatible with UCS C890 M5 across all CPU options?
A: It is qualified for the platform; however, capacity and speed support can vary by CPU SKUs and slot population. Refer to the server’s memory guide.

Q: Do I need to install DIMMs in pairs or sets?
A: For best performance, populate DIMMs symmetrically across memory channels as specified in the server’s population rules.

Q: Does this DIMM include ECC?
A: Yes, it is an ECC LRDIMM designed for enterprise reliability.

Technical Specifications

- Capacity: 256GB per DIMM
- Memory type: DDR4 ECC LRDIMM (3DS)
- Speed: up to 2933 MT/s (auto-negotiates based on CPU/BIOS)
- Voltage: 1.2V
- Error correction: ECC
- Form factor: 288-pin DIMM
- Compatibility: UCS C890 M5 platforms (check server QVL/BIOS)
- Population: Do not mix RDIMM and LRDIMM in the same system; balance channels for optimal bandwidth

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