Intel SR0LK Xeon E5-2440 6-Core 2.4GHz LGA 1356 Processor (Refurbished

Name: Intel SR0LK Xeon E5-2440 6-Core 2.4GHz LGA 1356 Processor (Refurbished)
Brand: Intel
SKU: SR0LK

Overview

The Intel Xeon E5-2440 is a six-core Sandy Bridge-EP processor targeted at single-socket LGA 1356 server platforms. Its 2.4GHz base clock with Hyper-Threading yields 12 logical threads — meaningful parallelism for virtualization stacks, web servers, and database workloads where thread count matters more than single-core frequency. The 15MB of shared L3 cache is the architectural highlight: at that cache allocation, frequently accessed datasets in database and caching workloads spend more time in on-die memory and less time waiting on DDR3 bus cycles, producing measurably lower average latency under mixed read/write loads. ECC DDR3-1600 support rounds out the server-class feature set, providing the memory error correction that distinguishes Xeon from consumer Core chips in reliability-critical deployments.

In practice, the E5-2440 is most valuable as a cost-efficient processor for legacy server environments, homelab virtualization builds, and budget NAS platforms that already run on compatible Sandy Bridge-EP boards. A refurbished unit at its price point can extend the useful life of an LGA 1356 system without the capital expenditure of a full platform refresh. The trade-offs are architectural and generational: PCIe 2.0 limits I/O-heavy configurations, DDR3's bandwidth ceiling shows under modern in-memory analytics, and the absence of newer instruction sets (AVX2, AVX-512) means some modern workloads cannot use optimized code paths. Within its lane — sustained multi-threaded server tasks on existing compatible hardware — it performs predictably and reliably.

Key Features

SR0LK

INTEL

Specifications

Processor Model

Xeon E5-2440

Core Count

6-Core

Base Clock Speed

2.4GHz

Socket Type

LGA 1356

Condition

Refurbished

Part Number

SR0LK

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Pros & Cons

👍 Pros

Six physical cores at 2.4GHz with 12 threads (Hyper-Threading) provide genuine parallelism for multi-threaded server workloads at a fraction of current-generation pricing.
15MB of L3 cache reduces main memory round-trips on data-intensive tasks like database queries and in-memory caching layers.
ECC DDR3 memory support provides hardware-level memory error correction — a non-negotiable feature for production server deployments.
95W TDP is thermally manageable within standard 1U and 2U server chassis without specialized cooling infrastructure.
Refurbished pricing makes this processor a cost-effective option for budget-constrained lab environments, legacy server refreshes, or homelab builds.

👎 Cons

LGA 1356 socket platform is end-of-life — compatible server boards are increasingly scarce and carry no manufacturer support.
No PCIe 3.0 support; the Sandy Bridge-EP platform is limited to PCIe 2.0, halving theoretical bandwidth on storage and GPU add-in cards compared to modern platforms.
DDR3 memory controller caps out at DDR3-1600, a bandwidth ceiling that becomes a bottleneck under memory-intensive analytics or large VM deployments.
Refurbished condition introduces uncertainty around remaining operational lifespan — no warranty coverage comparable to new CPU purchases.
No AVX2 or later instruction set support; Sandy Bridge-EP supports only AVX (256-bit), limiting performance on modern workloads optimized for wider SIMD operations.

Frequently Asked Questions

What socket does the Xeon E5-2440 use, and is it compatible with standard LGA 1366 or LGA 2011 platforms?

The E5-2440 uses LGA 1356 — a distinct socket that is not compatible with LGA 1366 (older Nehalem/Westmere) or LGA 2011 (E5-2600 series). LGA 1356 was used exclusively in single-socket Sandy Bridge-EP server boards. Verify your motherboard's socket designation before purchase.

What is the TDP of the E5-2440, and what cooling solution does it require?

The E5-2440 has a 95W TDP, which is moderate for a server-class Xeon. It requires a server-grade CPU cooler — standard desktop coolers may not mount correctly on LGA 1356 server boards. Most 1U/2U server chassis coolers designed for Sandy Bridge-EP handle 95W without issue.

How does the 15MB of L3 cache affect throughput on database or virtualization workloads?

15MB of L3 cache means the processor can hold larger working datasets in on-die memory before hitting main RAM latency. For database query operations, VM context switching, and web server processes with repeated data access patterns, this cache reduces average memory access latency meaningfully compared to processors with half the cache allocation.

Does this processor support ECC memory, and what memory types is it compatible with?

Yes — the E5-2440 supports both ECC and non-ECC DDR3 memory at speeds up to DDR3-1600. ECC support is one of the primary reasons to use Xeon over Core-series chips in server environments, as it detects and corrects single-bit memory errors that would silently corrupt data on non-ECC platforms.

What does "certified refurbished" mean for this processor, and what should buyers verify?

Certified refurbished means the chip has been tested for functionality and correct operation after removal from a prior deployment. Buyers should verify the seller's testing methodology, confirm the IHS (integrated heat spreader) shows no damage, and check that the LGA 1356 contact pads are clean and undamaged before installation.