HP 591904-B21 Xeon E5620 Quad-Core 2.4GHz Processor Upgrade

Name: HP 591904-B21 Xeon E5620 Quad-Core 2.4GHz Processor Upgrade
Brand: HP
SKU: 591904-B21

Boost Server Performance with a Quad-Core UpgradeUpgrade your server's processing power with the 591904-B21 HP Xeon DP Quad-core E5620 2.4GHz Processor. This upgrade kit enhances your system's capabilities with a reliable and efficient quad-core processor. Specifications: Processor: Xeon DP Qua...

$185.99*

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*Price sourced from Amazon.com. Last updated:Jul 21, 2026.Price and availability are subject to change.

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Overview

Boost Server Performance with a Quad-Core Upgrade

Upgrade your server's processing power with the 591904-B21 HP Xeon DP Quad-core E5620 2.4GHz Processor. This upgrade kit enhances your system's capabilities with a reliable and efficient quad-core processor.

Specifications:

Processor: Xeon DP Quad-core E5620
Clock Speed: 2.4GHz
Compatibility: HP SL160Z G6
Kit Part Number: 591904-B21

Specifications

Processor Model

Xeon E5620

Core Count

Quad-Core

Processor Frequency

2.4GHz

Product Type

Processor Upgrade

Brand

Frequently Asked Questions

What kind of processor is the HP 591904-B21?

The HP 591904-B21 is an Intel Xeon E5620 Quad-Core processor, designed as an upgrade for compatible HP systems.

What is the clock speed of this processor?

This Quad-Core Xeon E5620 processor operates at a frequency of 2.4GHz, providing stable performance for various tasks.

How many cores does this processor have?

The HP 591904-B21 is a Quad-Core processor, meaning it has four processing cores to handle multiple operations concurrently.

Is this processor intended for new builds or upgrades?

This product is specifically labeled as a "Processor Upgrade," indicating it's intended to enhance the performance of existing, compatible HP systems.

Does this upgrade require a specific type of HP system?

Yes, as an upgrade part, it is designed for compatibility with specific HP systems that support the Xeon E5620 Quad-Core processor.

What Buyers Say

👍 Pros

Upgrades your system with an Intel Xeon E5620 Quad-Core processor, significantly boosting processing capabilities.
Operates at a base clock speed of 2.4GHz, providing solid performance for multi-threaded applications.
Features a quad-core architecture, enabling efficient handling of multiple tasks simultaneously.
Designed as a processor upgrade, offering a clear path to enhanced performance for compatible HP systems.
Offers a cost-effective way to extend the life and utility of existing hardware investments.

👎 Cons

The 2.4GHz clock speed, while reliable, may not match the raw single-core speed of newer, higher-frequency processors.
As a quad-core processor, it might be outperformed by systems with higher core counts for extremely parallelized workloads.
Being an E5620 model, it is an older generation Xeon processor, which could imply less advanced instruction sets compared to current models.
Specifically marketed as an "upgrade," it requires an existing HP system that is compatible with this particular Xeon processor.
Power consumption and heat generation figures are not specified, which could be a concern for older system cooling solutions.