General

Engineer's Note

This 2GB DDR3-1333 Registered ECC RDIMM, with its single-rank x8 configuration and CL9 latency, delivers stable signal integrity and error correction tailored for virtualization and entry-level server workloads where data reliability is paramount. Its registered design minimizes command bus loading, making it an ideal fit for platforms running memory-intensive applications like light databases or virtual machines that require consistent uptime.

Technical Specs & Insights

1. ECC protection silently corrects single-bit errors, safeguarding financial transactions and preventing data corruption in long-running server workloads.
2. Registered signal buffering stabilizes command addressing, enabling large-scale memory populations without compromising signal integrity in dense rack servers.
3. A CAS latency of 9 cycles delivers deterministic response times, reducing memory access delays for latency-sensitive enterprise applications.
4. 1333 MT/s data rate provides balanced throughput for mid-tier virtualization hosts, sustaining smooth operation under concurrent VM requests.
5. Single-rank x8 organization minimizes electrical loading per channel, allowing fully populated DIMM slots while preserving target clock speeds.

Why These Specs Matter

For server memory, the MT9JSF25672PZ-1G4D1DD's four key attributes solve real operational headaches. Its ECC technology safeguards against silent data corruption—vital when running dense virtualization clusters, where a single-bit flip could crash multiple guest systems or corrupt database transactions. The registered buffer allows you to scale capacity by maintaining clean signals across all populated DIMM slots, eliminating the boot failures and instability that plague unbuffered memory in heavy VM farms. The single-rank x8 architecture reduces internal bank switching delays, while the CL9 CAS latency ensures consistent, predictable access times. This combination is invaluable for in-memory databases like Redis, where microsecond latency variations directly impact query throughput. Together, these features deliver data integrity, massive stable capacity, and the deterministic low latency your mission-critical services demand.

Endurance & Reliability

The ECC, Registered, 240-pin specification identifies this as a server DDR3-1333 RDIMM. With only 2GB capacity per module, meeting modern workload demands requires strategic channel population.

General Virtualization
Populate memory channels symmetrically. For dual-socket servers with triple-channel architecture, install at least six 2GB DIMMs per processor (two per channel) to provide 12GB per CPU. This supports a few light VMs; for larger farms, supplement with higher-capacity RDIMMs to avoid wasting slots.

In-Memory Database
Maximize capacity by filling every DIMM slot. An 18-slot server yields only 36GB total, sufficient only for small dev/test or caching nodes. Ensure identical modules are balanced across channels to leverage ECC protection and consistent latency.

High-Performance Computing
Aggregate bandwidth by installing identical 2GB RDIMMs into all memory channels. Use two DIMMs per channel on a dual-processor, triple-channel system (12GB per socket) to sustain interleaved high-bandwidth mode, which benefits compute-intensive kernels despite the total capacity ceiling.

Verified Compatibility

Rigorously tested server memory. Compatible with Dell PowerEdge R710, HP ProLiant DL360 G7, Lenovo ThinkServer RD330.

FAQ