General

Engineer's Note

Suited for legacy server platforms requiring maximum data integrity, this 1GB PC133 Registered ECC DIMM is ideal for small-scale virtualization hosts or entry-level memory-resident databases. Its Registered signal type ensures stable command and address signaling across multiple ranks, while ECC protection guards against single-bit errors in long-running, mission-critical workloads.

Technical Specs & Insights

1. ECC protection detects and corrects single-bit memory errors in real time, safeguarding critical server workloads from silent data corruption that could crash financial transactions or database operations.
2. Registered signal buffering stabilizes electrical loads across fully populated memory banks, enabling dense server configurations to maintain uptime under heavy multi-rank access patterns.
3. One-gigabyte capacity per module provides ample headroom for essential system services and lightweight virtualized instances, exactly matching the scale of legacy enterprise appliances or dedicated network controllers.
4. 133 MHz clock speed delivers predictable, deterministic throughput for latency-sensitive telephony and embedded server tasks where synchronous timing is more vital than raw peak bandwidth.
5. CL3 low column access latency minimizes the delay between a memory request and the first word of data, improving the response time of small random accesses that dominate transactional database lookups.

Why These Specs Matter

Here is the product-focused explanation you requested, tailored for a server memory audience.

Designed unequivocally for legacy enterprise servers, the MT36LSDF12872G-133C1 is a 1GB PC133 registered ECC SDRAM DIMM whose core attributes directly tackle the punishing demands of data-critical computing. Its ECC error correction is non-negotiable for safeguarding financial transaction logs or scientific datasets against silent single-bit upsets that raw memory would ignore, meaning one undetected flipped bit in a virtualized hypervisor cannot cascade into a catastrophic host failure. The registered signal buffer is equally vital: in a densely populated virtualization cluster running multiple VMs, it stabilizes the electrical load across all populated slots, allowing you to max out server memory without timing degradation that leads to random kernel panics. When deploying an in-memory database, the 133MHz clock with CL3 latency delivers deterministic access times, ensuring read latencies remain predictable with each cache hit. This translates to sustained query throughput where jitter is the enemy. At 3.3V, the module operates within the thermal and power budgets of legacy enclosures, keeping a fleet of always-on application servers within acceptable energy profiles while maintaining that essential ECC integrity layer. Together, these traits transform a commodity upgrade into a reliability guarantee for aging but mission-critical infrastructure.

Endurance & Reliability

Server Memory Capacity Planning

This MT36LSDF12872G-133C1 is a legacy server DIMM: 1 GB, PC133, Registered ECC, 168-pin. It suits older servers requiring data integrity. Plan deployments by populating all available slots to overcome low per-module capacity.

General Virtualization
In hypervisor-based setups, each guest VM demands dedicated RAM overhead. To run even lightweight virtual machines, fully populate the server board to reach the maximum supported capacity (e.g., 8 or 16 GB across multiple slots). Prioritize interleaving—install identical modules in matched banks to improve memory throughput under concurrent VM I/O.

In-Memory Database
Low-latency workloads like in-memory DBs require abundant RAM and reliability. The 1 GB capacity severely limits dataset size; fill every slot to maximize total memory, and leverage Registered ECC to prevent silent data corruption. However, 133 MHz bandwidth with CL3 latency becomes a bottleneck—consider this only for small-scale, archival, or test instances.

High-Performance Computing (HPC)
HPC jobs demand both capacity and error resilience. Install an even number of identical modules in each memory channel to enable symmetrical bank interleaving, slightly boosting 133 MHz throughput. Registered signaling stabilizes large module counts, but the 1 GB base mandates dozens of modules per node. For any parallel MPI job, ensure identical DIMM configurations across all compute nodes to avoid imbalances.

Verified Compatibility

Rigorously tested server RAM; fits Dell PowerEdge 4400, HP ProLiant DL380 G2, IBM xSeries 330.

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