HP

HP E5-2450 Xeon E5-2450 2.1GHz 8-Core CPU Kit

Eight Sandy Bridge-EP cores at 95W TDP extend your HP DL360e Gen8's throughput for multi-threaded server workloads that have outgrown the base config.

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Overview

The HP 660652-B21 E5-2450 CPU Kit installs an Intel Xeon E5-2450 processor into the HP ProLiant DL360e Gen8 server platform. The E5-2450 is a Sandy Bridge-EP 8-core processor operating at 2.1GHz base with a 2.9GHz single-core turbo, 16 threads via HyperThreading, and 20MB of L3 cache on a 32nm process. At 95W TDP, it is the highest-performance option in the LGA1356 E5-2400 lineup. The 20MB cache is a practical asset: for workloads that repeatedly access the same memory regions — database buffer pools, JVM heap operations, message queue processing — reduced main-memory round trips translate directly to latency improvements under concurrent load.

This kit is purpose-built for administrators looking to extract more throughput from existing DL360e Gen8 hardware rather than funding a platform replacement. It fits squarely in server refresh cycles where the chassis, drives, and network infrastructure remain serviceable but the base processor has become a bottleneck under growing virtualization density or expanded workloads. In a dual-socket build, two E5-2450 processors provide 16 physical cores and 32 threads — enough headroom for a respectable VMware ESXi or Hyper-V host running a dozen or more VMs. The platform's DDR3 memory controller and PCIe 2.0 lanes are the ceiling; anyone facing memory bandwidth constraints or requiring NVMe storage should weigh the total upgrade cost against a modern server platform.

Specifications

Processor
Intel Xeon E5-2450
Clock Speed
2.1GHz base / 2.9GHz turbo
Cores / Threads
8-core / 16-thread
L3 Cache
20MB
TDP
95W
Socket
LGA1356
Compatibility
HP ProLiant DL360e Gen8
Brand
HP
Part Number
660652-B21

Pros & Cons

👍 Pros

  • 8 cores and 16 threads at 2.1GHz base (2.9GHz turbo) deliver more than double the parallelism of the 4-core base processor options
  • 20MB L3 cache reduces memory latency for database and in-memory workloads compared to smaller-cache E5-24xx variants
  • 95W TDP fits within the DL360e Gen8's validated thermal envelope without requiring chassis modifications
  • HP-validated kit (part 660652-B21) ensures firmware recognition and eliminates health warnings triggered by non-certified processors
  • LGA1356 dual-socket support allows a second E5-2450 for a combined 16-core, 32-thread configuration

👎 Cons

  • Sandy Bridge-EP microarchitecture (2011) lacks modern ISA extensions — no AVX-512, no PCIe 3.0 support from the CPU (platform is PCIe 2.0)
  • DDR3 memory controller caps out at 1600MHz — the platform cannot use DDR4 regardless of available capacity
  • Xeon E5-2450 is a platform-locked upgrade path — the DL360e Gen8 cannot accept E5-2600 v2 or later processors
  • No integrated graphics; management is entirely dependent on HP iLO for out-of-band access
  • End-of-life platform means no new firmware updates or security patches from HP

Frequently Asked Questions

This kit is validated specifically for the HP ProLiant DL360e Gen8 (part number 660652-B21). It is not a universal Xeon E5-2450 — it ships as an HP-certified kit with the required heatsink and is validated against the DL360e Gen8 firmware and BIOS. Installing a bare OEM Xeon without the HP kit components can trigger hardware health warnings.
The E5-2450 delivers 8 cores versus 4 on the E5-2403, twice the thread count (16 threads via HyperThreading), and a 20MB L3 cache versus 10MB. Clock speed increases from 1.8GHz to 2.1GHz base with a 2.9GHz turbo. For multi-threaded workloads — virtualization hosts, database servers, batch processing — this is a significant throughput uplift.
HP CPU kits for the DL360e Gen8 are designed to include the required heatsink for that chassis. Confirm the specific inclusion in the seller's listing, as some market listings for HP CPU kits are processor-only.
The E5-2450 has a 95W TDP, which the DL360e Gen8's hot-plug fan infrastructure is rated to handle. In a dual-socket configuration, total processor TDP reaches 190W — ensure your rack power and cooling infrastructure supports the server's full power envelope.
Yes — the DL360e Gen8 supports dual LGA1356 sockets, and two E5-2450 kits can be installed for 16 cores and 32 threads total. Both processors must be identical for proper NUMA operation.