⚙️ Dell RX522 Intel Core 2 Duo E4400 2.00GHz Processor — Reliable Dual-Core Power for Dell Legacy Systems

Upgrade your Dell system with the Dell RX522 Intel Core 2 Duo E4400 2.00GHz Processor, a dependable dual-core CPU designed to deliver stable performance for office, educational, and home computing tasks.
This LGA775-based processor provides smooth multitasking and energy-efficient operation, making it ideal for older Dell desktops that still need to perform reliably every day.

Whether you’re running business applications, browsing the web, or using productivity software, the Core 2 Duo E4400 ensures balanced speed, efficiency, and compatibility — all backed by genuine Dell OEM quality.

1️⃣ Product Overview

The Intel Core 2 Duo E4400 (Dell Part Number: RX522) is part of Intel’s Conroe family — known for superior performance and low power consumption compared to the older Pentium 4 line.
Operating at 2.00GHz with a 2MB L2 cache and 800MHz front-side bus (FSB), it’s an excellent processor for extending the life of legacy Dell systems.

With support for 64-bit computing and Intel’s Enhanced SpeedStep® Technology, this CPU efficiently handles multitasking while keeping system temperatures and energy usage low.

2️⃣ Key Specifications

• 🔹 Brand: Intel

• 🔹 Model: Core 2 Duo E4400

• 🔹 Dell Part Number: RX522

• 🔹 Clock Speed: 2.00GHz

• 🔹 Front Side Bus (FSB): 800MHz

• 🔹 Cache: 2MB L2 Cache

• 🔹 Core Count: Dual-Core (2 Cores)

• 🔹 Socket Type: LGA775

• 🔹 Architecture: Conroe

• 🔹 Process Technology: 65nm

• 🔹 Thermal Design Power (TDP): 65W

3️⃣ Performance & Efficiency

Built with Intel’s efficient dual-core design, the E4400 can handle multiple applications at once with less lag.
The 2MB L2 cache allows faster access to frequently used data, while the 800MHz FSB supports stable communication between the processor and memory.
It’s a perfect upgrade for users looking to boost performance on Dell desktops without investing in an entirely new system.

4️⃣ Compatible Dell Systems

The Dell RX522 Core 2 Duo E4400 Processor is compatible with many Dell desktop systems featuring the LGA775 socket, such as:

• 🖥️ Dell OptiPlex 745 / 755 / 760

• 🖥️ Dell Dimension E520 / 9200

• 🧩 Dell Vostro 200 / 220 / 400 Series

• 🧩 Dell PowerEdge SC440 (Entry Servers)

If your Dell desktop supports the LGA775 socket and a Core 2 Duo CPU, the E4400 is a drop-in upgrade for smoother, faster performance.

5️⃣ Why Buy from GenZ Hardware

✔ 100% Genuine Dell OEM Processor
✔ Professionally Tested for Quality & Stability
✔ Ideal for Legacy Dell Systems & Repairs
✔ Affordable Upgrade for Everyday Performance
✔ Fast Nationwide Shipping from GenZ Hardware

At GenZ Hardware, we specialize in authentic Dell parts — processors, motherboards, memory, and storage — to keep your systems running reliably for years to come.

6️⃣ Dependable Performance. Dell Certified.

The Dell RX522 Intel Core 2 Duo E4400 2.00GHz Processor offers the perfect balance between efficiency and reliability for older Dell desktops.
Whether you’re maintaining legacy office systems or upgrading an OptiPlex workstation, this processor delivers lasting value and smooth performance.

⚙️ Trusted Dell OEM Quality — Only at GenZ Hardware.