M391B1G73QH0-YK0 Samsung 1x8GB DDR3L UDIMM ECC RAM

Enterprise DDR3L ECC UDIMM server memory for legacy platform stability with the M391B1G73QH0-YK0

M391B1G73QH0-YK0 is a Samsung 8GB DDR3L ECC UDIMM engineered for DDR3L-era Intel and AMD server and workstation platforms that require unbuffered ECC. It supports JEDEC DDR3L-1600 operation at 1.35V, enabling predictable memory behavior in mixed-density upgrade or repair scenarios where platform qualification is strict and margin for signal integrity deviation is low.

As an unbuffered 240-pin DIMM, M391B1G73QH0-YK0 is designed for CPU-integrated memory controllers that do not accept registered DIMMs, making it suitable for entry server boards and certain workstation chipsets. The 72-bit ECC data path provides single-bit error correction to protect long-running services from soft errors, while the low-voltage DDR3L profile reduces thermal load and power draw in dense chassis. With dual-rank organization and conservative CL11 timings, M391B1G73QH0-YK0 aligns with legacy PCIe-based expansion and SATA/SAS storage architectures by maintaining consistent memory latency for I/O-heavy workloads and older hypervisor stacks.

Why Choose the M391B1G73QH0-YK0?

M391B1G73QH0-YK0 delivers a pragmatic density-to-reliability balance for sustaining production on DDR3L platforms, where compatibility and uptime matter more than peak throughput. It supports scalable population strategies across available UDIMM channels, simplifies sparing for field replacement, and provides ECC protection appropriate for business-critical services running on mature infrastructure.

Samsung designs server memory with an emphasis on electrical compliance, consistent component sourcing, and validation against enterprise operating conditions. This approach supports stable deployments in modern data centres that maintain legacy nodes for specific applications, extended lifecycle equipment, or controlled migration plans.

Key Applications:

• Legacy server and workstation memory upgrades
• ECC UDIMM repair and spare inventory
• Virtualization on DDR3L-era platforms
• Directory, DNS, and infrastructure services
• File and print services

At Happyware - Server Hardware you benefit from non-binding offers tailored to your exact M391B1G73QH0-YK0 deployment and population requirements, and from an extended warranty of up to 6 years to secure long-term operation on legacy platforms.