Samsung M393B1G70QH0-CMA

Overview

The Samsung M393B1G70QH0-CMA is an 8GB DDR3 registered ECC memory module designed specifically for servers and enterprise systems that require reliable data integrity and consistent performance. Operating at 1866 Mbps and supporting dual voltages of 1.5 V and 1.35 V, it balances high-speed data transfer with energy efficiency. This module is ideal for environments where stability under heavy workloads is critical, such as virtualized servers, database management, and high-performance computing nodes.

Key features

• ECC technology detects and corrects single-bit memory errors to prevent data corruption and system crashes.
• On-board register buffers clock, command, and control signals, reducing electrical load on the memory controller for improved system stability.
• Dual-voltage operation allows switching between standard 1.5 V and lower 1.35 V to optimize power consumption without sacrificing performance.
• Single-rank x4 layout supports configurations with up to two DIMMs per channel, enabling flexible memory expansion.
• 240-pin RDIMM form factor ensures compatibility with a wide range of server platforms and enterprise-grade workstations.

Key specs

• Capacity: 8 GB
• Memory type: DDR3 registered ECC DIMM
• Speed: 1866 Mbps
• Voltage: 1.5 V / 1.35 V dual-voltage support
• Rank and organization: Single-rank x4 (1Gx72)
• Pin count: 240-pin RDIMM

Connectivity and compatibility

This memory module is designed to fit into standard 240-pin RDIMM slots commonly found in enterprise servers and high-end workstations. Its registered ECC design ensures compatibility with server motherboards that require error correction and signal buffering for stable multi-DIMM configurations. It supports up to two DIMMs per channel, making it suitable for scaling memory capacity in clustered or virtualized environments.

Performance and reliability

By incorporating ECC and an on-board register, this module enhances system reliability by minimizing the risk of data errors and signal degradation. The ability to operate at a lower voltage reduces heat generation and power consumption, which contributes to longer component lifespan and lower operating costs. These features make it a dependable choice for mission-critical applications where uptime and data accuracy are paramount.

Ideal uses and environments

The Samsung M393B1G70QH0-CMA fits well in server farms, data centers, and enterprise IT setups that demand consistent memory performance under heavy multitasking and data-intensive workloads. It is a strong option for IT professionals managing virtual hosts, web server clusters, or HPC nodes who need to expand memory capacity without complex configuration. Small business file servers and lab workstations can also benefit from its balance of speed, reliability, and energy efficiency.

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