HP 601252-L21 Intel Xeon L5630 Processor Kit

Name: HP 601252-L21 Intel Xeon L5630 Processor Kit
Brand: HP
SKU: 601252-L21

Low-power quad-core Xeon processor kit designed to upgrade HP ProLiant ML350 G6 servers efficiently.

$145.10*

*Price sourced from Amazon.com. Last updated:Jun 04, 2026.Price and availability are subject to change.

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Overview

The HP 601252-L21 Intel Xeon L5630 Processor Kit provides a straightforward upgrade path for HP ProLiant ML350 G6 servers. The Xeon L5630 is a quad-core processor clocked at 2.13 GHz with 12MB of shared L3 cache, built on Intel's Westmere 32nm architecture. Its defining characteristic is its low 40W thermal design power, which makes it an energy-efficient choice for server environments where electricity costs and cooling capacity are important considerations. For organizations running file servers, light virtualization hosts, or database applications that don't demand peak single-threaded speed, the L5630 provides reliable processing power without the thermal and electrical overhead of higher-wattage alternatives.

As an HP-branded processor kit, the 601252-L21 is validated for drop-in compatibility with the ML350 G6 platform, reducing the guesswork involved in sourcing compatible server components. This makes it a practical option for IT administrators maintaining or expanding existing ML350 G6 deployments. The dual-socket capability of the ML350 G6 means a second L5630 can be added for additional cores and memory bandwidth, further extending the server's useful life for moderate workloads. While this is a legacy platform and not suitable for demanding modern compute requirements, it remains a cost-effective solution for keeping older infrastructure operational.

Specifications

Brand

Model

601252-L21

Processor

Intel Xeon L5630

Clock Speed

2.13 GHz

Cores

TDP

40W

Cache

12MB

Architecture

Westmere (32nm)

Compatibility

HP ProLiant ML350 G6

Pros & Cons

👍 Pros

40W TDP significantly reduces power consumption and cooling demands compared to standard Xeon processors.
12MB of L3 cache helps maintain performance for server workloads with frequent data access patterns.
Quad-core design handles multithreaded server applications and light virtualization effectively.
HP kit packaging ensures compatibility and straightforward installation in the ML350 G6.
Low heat output allows quieter fan operation and extends the lifespan of surrounding components.

👎 Cons

The 2.13 GHz clock speed is slow by modern standards, limiting single-threaded application performance.
Only compatible with the HP ProLiant ML350 G6, making it unsuitable for other server platforms without verification.
Four cores provide limited capacity for running many virtual machines or heavily parallelized workloads.
This is a legacy processor based on the older Westmere architecture, with no path to newer CPU upgrades on the same platform.
The L-series kit may not include a heatsink, requiring existing or separately purchased cooling hardware.

Frequently Asked Questions

Which servers is the HP 601252-L21 processor kit compatible with?

This processor kit is specifically designed for the HP ProLiant ML350 G6 server. It is not compatible with other server models without verifying socket and BIOS support.

What makes the Xeon L5630 a "low-power" processor?

The L5630 operates at a 40W TDP (thermal design power), which is significantly lower than standard Xeon processors of the same generation. The "L" in the model name designates it as a low-power variant, making it ideal for environments where power consumption and heat output are concerns.

Does this kit include a heatsink or just the processor?

This is a processor kit from HP (part number 601252-L21), which is an L-designated kit. HP L-series kits are typically processor-only and intended for systems that already have the necessary cooling hardware installed.

Can I install two of these processors in my ML350 G6?

The HP ProLiant ML350 G6 supports dual processors. If your server currently has one CPU, you can add a second L5630 to the empty socket, though you may need an additional heatsink kit for the second socket.

What workloads is the Xeon L5630 best suited for?

With 4 cores at 2.13 GHz and a 12MB cache, the L5630 is well suited for file serving, virtualization with moderate VM counts, database hosting, and general-purpose server workloads where energy efficiency is a priority.