General

Engineer's Note

This is a server-class DDR3 Registered DIMM with ECC, optimized for legacy virtualization hosts and memory-intensive database servers where data integrity is critical. Its dual-rank configuration maximizes memory density per channel, while registered signaling ensures stable operation across multiple DIMMs to maintain consistent CL9 latency under heavy load.

Technical Specs & Insights

1. ECC protection actively detects and corrects single-bit memory errors, preserving data integrity in transactional databases and virtualization clusters where even silent corruption is unacceptable.

2. Registered clock and command buffering stabilizes signal integrity across densely populated server boards, enabling large memory configurations vital for robust multi-tenant virtual machine hosting.

3. Dual Rank organization interleaves access across two internal rank groups, increasing sustainable memory throughput under heavy simultaneous query loads typical of enterprise middleware.

4. The accessible CAS latency balances access responsiveness, reducing memory fetch stalls for latency-sensitive caching layers without sacrificing the moderate clock frequency.

5. A 1333 megatransfers per second interface supplies ample per-channel bandwidth to keep mid-range application servers fed during peak concurrent user traffic.

Why These Specs Matter

The M393B1K70CH0CH902 is an 8GB DDR3-1333 Registered DIMM with ECC and a dual-rank design, purpose-built for server environments where uptime and data fidelity are non-negotiable. Its Error Correcting Code actively detects and corrects single-bit memory errors, preventing silent data corruption that can crash virtual machines or produce inaccurate financial calculations. The registered buffer isolates the memory controller from the electrical load of multiple DIMMs, enabling a fully populated server to run 24/7 without signal degradation—critical for dense virtualization clusters hosting dozens of VMs. The dual-rank architecture leverages internal bank interleaving to boost effective bandwidth, significantly accelerating in-memory databases like SAP HANA or Redis by serving more data in parallel. Even at a stable 1333MHz with CL9 latency, this module delivers consistent, low-latency access that transactional workloads demand. For IT managers, this means fewer unexplained crashes, resilient multi-tenant performance, and a foundation for reliable data processing in an always-on enterprise.

Endurance & Reliability

This is server-class memory: 8GB DDR3-1333 Registered ECC RDIMM (M393B1K70CH0CH902). The following capacity planning recommendations apply.

General Virtualization
Balance memory across NUMA nodes. Install one 8GB module per channel (e.g., six modules for a three-channel CPU) as a baseline. For higher density, populate two DIMMs per channel (12 modules, 96 GB). Using identical dual-rank RDIMMs in all slots keeps 1333 MHz stable and ensures consistent virtual machine performance.

In-Memory Database
Max out capacity: fill every DIMM slot. A dual-socket server with 12 slots can deliver 192 GB using two 8GB sticks per channel, although speed might drop to 1066 MHz. The large dataset capacity gain outweighs the speed drop, ideal for analytics.

High-Performance Computing
Prioritize bandwidth and low latency. Place exactly one 8GB RDIMM in each channel (e.g., eight modules for a four-channel system) to sustain 1333 MHz CL9. Populate all channels with the same part to ensure signal integrity and support parallel HPC workloads.

Verified Compatibility

Rigorously tested for guaranteed compatibility with Dell PowerEdge R710, R510, T610, HP DL380 G7, IBM x3650 M3.

FAQ