HP Pavilion DX2000 Power Supply ATX-250-12Z PS-5251-08 410507-003 250W – OEM Replacement

Is your HP Pavilion or Compaq desktop failing to power on? Are you experiencing random shutdowns, system freezes, or a complete failure to boot? If so, the solution is simple: replace your failing power supply with the HP 250W Power Supply ATX-250-12Z.

This genuine OEM power supply is the perfect drop-in replacement for your HP desktop. Designed specifically for HP Pavilion and Compaq systems, this unit delivers reliable, stable power to get your system back to peak performance.

What Is the HP ATX-250-12Z Power Supply?

The HP ATX-250-12Z is a 250-watt ATX power supply designed specifically for HP Pavilion and Compaq desktop systems. It serves as the direct replacement for part number 410507-003 and is also identified by model numbers PS-5251-08 and ATX-250-12Z.

Manufactured by trusted names like Lite-On and Bestec, this power supply is engineered to meet HP’s exact specifications. As a result, you get a perfect fit, reliable power delivery, and long-term durability.

Whether you’re using your desktop for office work, web browsing, email, or light multitasking, this power supply delivers the stable energy your system needs to run smoothly every day.

Why Choose the HP ATX-250-12Z Power Supply?

Genuine OEM Quality

To begin with, this is not a generic “compatible” power supply—it is a genuine HP OEM component. This means it is built to HP’s exact specifications, ensuring proper fitment, reliable power delivery, and long-term durability. Consequently, you can trust this unit to perform exactly as your original power supply did.

Reliable 250-Watt Output

Moreover, with 250 watts of continuous power, this ATX power supply provides sufficient energy for standard desktop computing tasks. It is engineered for efficiency and stability, making it ideal for daily use in home and office environments.

Broad Voltage Support

Furthermore, the ATX-250-12Z features a manual voltage switch for 115V and 230V input, making it suitable for use in many regions worldwide. This flexibility ensures compatibility regardless of where you are located.

Essential Connectors

In addition, this PSU includes all the necessary connectors to power your HP system:

• 24-Pin ATX Connector – Main motherboard power

• 4-Pin P4 CPU Connector – Dedicated power for the processor

• SATA Connectors – For hard drives and SSDs

• Molex Connectors – For older peripherals and optical drives

• Floppy Connector – For legacy floppy drives if needed

Standard ATX Form Factor

Finally, the power supply follows the standard ATX form factor, measuring approximately 5.9 inches wide, 3.4 inches high, and 5.5 inches deep (150 x 86 x 140 mm). As a result, this makes it a straightforward replacement for the original unit inside your HP chassis.

Is the HP ATX-250-12Z Compatible with Your System?

This power supply is designed for HP Pavilion and Compaq desktop systems, including the following models.

Confirmed Compatible Models

• HP Pavilion DX2000 Series

• HP Compaq DX2000 Series

• HP Compaq DX2200 Microtower

• HP Compaq DX2250 Microtower

• HP Compaq DX2300 Microtower

Part Number Cross-Reference

Look for any of these numbers on your current power supply:

• 410507-003

• 410507-002

• 410719-001

• 5188-2622

• PS-5251-08

• ATX-250-12Z

⚠️ Important Note: This is a standard ATX power supply with a 24-pin motherboard connector. It is compatible with most HP Pavilion and Compaq desktop systems from this era. However, we always recommend verifying your current power supply’s part number before purchasing to ensure a perfect match.

Technical Specifications

Here is a detailed breakdown of everything you need to know about this power supply.

Product Overview

The HP 250W Power Supply is an internal ATX power supply designed for HP Pavilion and Compaq desktop systems. The unit is manufactured by trusted brands like Lite-On and Bestec and carries model numbers PS-5251-08 and ATX-250-12Z.

This power supply follows the standard ATX form factor, measuring approximately 5.9 inches wide, 3.4 inches high, and 5.5 inches deep (150 x 86 x 140 mm). Consequently, it fits perfectly into HP desktop chassis designed for standard ATX power supplies.

Power Output Specifications

The unit delivers a maximum output of 250 Watts, providing more than enough power for standard desktop computing tasks.

For input, the unit supports 115V/230VAC with a manual voltage switch, making it suitable for use in many countries worldwide. The input frequency is 50/60 Hz.

DC Output Specifications

The ATX-250-12Z provides stable power across multiple output rails:

• +5V rail – Powers motherboard logic, USB ports, and other 5V components

• +3.3V rail – Powers chipsets, RAM modules, and PCI/PCIe expansion cards

• +12V rail – Delivers power for the processor, drives, and peripherals

• -12V rail – Supports legacy serial ports and audio circuits

• +5VSB standby rail – Provides always-on power for Wake-on-LAN and other features

Connector Configuration

The power supply includes a comprehensive set of connectors for your HP system:

• One 24-Pin ATX Connector – Main motherboard power connector

• One 4-Pin P4 CPU Connector – Dedicated power for the processor

• Two to Four SATA Connectors – For connecting SATA hard drives and SSDs

• Two Molex Connectors – For legacy IDE devices and case fans

• One Floppy Connector – For legacy floppy drives if needed

Cooling

The unit features a quiet fan that keeps your system cool while operating quietly. Moreover, it is designed for energy efficiency, reducing electricity consumption and extending the life of your PC.

Safety and Compliance

The HP ATX-250-12Z meets rigorous safety and environmental standards. For instance, the unit includes built-in protections, including overvoltage protection and short circuit protection, to safeguard your system’s components from electrical damage. Furthermore, it is certified by UL, TUV, and FCC for safety and quality.

Why Buy From Compvate?

At Compvate, we know that finding the right replacement part can be frustrating. That’s why we make the process simple and stress-free.

• Genuine OEM Parts – We source authentic HP components, never generic “compatible” units that can fail prematurely

• Expert Technical Support – Our team knows HP systems inside and out. If you’re not sure about compatibility, we’re just a message away

• Fast Shipping – We know downtime costs money. That’s why we ship orders quickly so you can get your system back online

• Competitive Pricing – Quality replacements at prices that make sense for your budget

• Satisfaction Guaranteed – We stand behind every product we sell

At Compvate, we provide computer hardware and replacement components for customers maintaining, repairing, and refurbishing desktop computer systems. Visit Compvate to explore available computer hardware and replacement components.