HP ATX Omen 880 918585-001 PS-8501-2 500W PSU

HP ATX Omen 880 918585-001 PS-8501-2 500W PSU

HP Omen 880 500W Power Supply

This 500-watt power supply is the standard configuration for the HP Omen 880 gaming desktop series . This unit is manufactured by Lite-On and is known by HP spare numbers 918585-001 and PS-8501-2 .

The power supply is designed to fit the ATX form factor with standard dimensions of 150mm x 140mm x 86mm, making it suitable for most ATX-compatible chassis .

HP Omen 880 PSU Specifications

The key specifications for this replacement power supply are:

Known Compatible Part Numbers

When purchasing a replacement, look for these compatible part and model numbers:

HP Spare Numbers

• 918585-001 – HP spare number 

• PS-8501-2 – HP spare number 

• 849655-001 – Alternate compatible number 

• 931948-001 – Alternate compatible number 

Manufacturer Model Numbers

• PS-8501-2HB – Manufacturer model number 

Connector Configuration

This 500W power supply features the following connectors :

Compatibility Information

The HP Omen 880 500W power supply is compatible with:

• HP Omen 880 Series – All configurations 

• HP Omen 870 Series – Selected models 

Form Factor: This unit uses a standard ATX form factor and fits in most ATX-compatible chassis .

Important Upgrade Considerations

While this power supply uses a standard ATX form factor, upgrading to a higher-wattage unit may require additional consideration:

• Physical Dimensions: Some aftermarket PSUs may be longer than the OEM unit. The Omen 880 case has limited space, so verify the length of any replacement PSU before purchase .

• Proprietary Motherboard Connections: Some HP Omen motherboards use a non-standard 4-pin connector for system power. Ensure any replacement PSU provides the necessary connections .

• Cable Management: The OEM unit uses non-modular cables. Some modular PSUs may require additional clearance for cable connections .

Common Signs of a Faulty Omen 880 Power Supply

A defective power supply can cause several symptoms:

• The desktop does not turn on

• System shuts down unexpectedly

• Workstation becomes unstable

• Intermittent power loss

• Internal hardware does not receive power correctly

These symptoms can also be caused by other components. We recommend diagnosing the desktop before purchasing a replacement PSU.

What to Check Before Buying

1. Confirm the Desktop Model

Make sure you have an HP Omen 880 or 870 series desktop.

2. Check the Original Wattage

The Omen 880 specification is 500W.

3. Record the Original PSU Information

Note the model, spare number, and other identification information printed on the existing unit.

4. Verify Physical Dimensions

This power supply uses a standard ATX form factor. However, some 880 models have limited space for longer PSUs .

5. Compare Connectors

Ensure the replacement provides the appropriate connections: 24-pin ATX, (4+4)-pin CPU, and PCIe connectors .

6. Consider Future Upgrades

If you plan to upgrade to a high-power graphics card (such as an RTX 3080 or newer), you may need a higher-wattage PSU .

Why Choose a Genuine Compatible HP Power Supply?

Choosing the right power supply for your HP Omen 880 is essential for:

• Restoring a non-working desktop

• Maintaining system stability

• Ensuring proper power delivery

• Supporting desktop repair and refurbishment

• Extending the useful life of your hardware

At compvate, we provide computer hardware and replacement components for customers maintaining and repairing desktop systems.