HP EliteDesk 800 G1 SFF Power Supply – Complete Guide for Compatibility, Installation, and Replacement

The HP EliteDesk 800 G1 Small Form Factor (SFF) desktop is a trusted business-class computer known for its reliability, speed, and compact design. However, like any desktop system, the power supply unit (PSU) plays a crucial role in maintaining system stability and performance. Choosing the right HP EliteDesk 800 G1 SFF power supply ensures long-lasting operation, safe power delivery, and full compatibility with your motherboard and components.

In this guide, we’ll explore everything you need to know about the HP EliteDesk 800 G1 SFF power supply—including specifications, compatible models, replacement procedures, troubleshooting tips, and where to buy the best replacement units in Kenya and beyond.

Understanding the HP EliteDesk 800 G1 SFF Power Supply

The HP EliteDesk 800 G1 SFF PSU is a compact yet efficient unit designed to fit perfectly in the small form factor (SFF) chassis. Unlike standard ATX power supplies, this model is uniquely built for the smaller HP EliteDesk casing and connects to the proprietary HP motherboard using custom connectors.

Key Specifications

• Model Compatibility: HP EliteDesk 800 G1 Small Form Factor (SFF)

• Form Factor: Proprietary SFF PSU

• Power Output: 240W or 320W (depending on model variant)

• Input Voltage: 100–240V AC, 50/60Hz

• Output Connectors: 6-pin mainboard connector, SATA power connectors, and fan connector

• Cooling: Internal temperature-controlled fan

• Efficiency Rating: 80 PLUS Bronze certified

This power supply is optimized for energy efficiency, meaning it reduces power wastage and helps maintain lower system temperatures. It is ideal for business users who require stability and energy savings.

Compatibility with HP Models

The HP EliteDesk 800 G1 SFF power supply is used across multiple HP desktop lines with similar chassis designs. Some of the compatible models include:

• HP EliteDesk 800 G1 SFF

• HP ProDesk 600 G1 SFF

• HP Compaq 6000 Pro SFF

• HP EliteDesk 705 G1 SFF

• HP EliteDesk 600 G2 SFF (with certain adapter cables)

Always verify the part number before purchasing a replacement. Common compatible part numbers include:

• 702309-001

• 702457-001

• DPS-240AB-5 A

• PS-6241-02

These part numbers are typically printed on the PSU label. Make sure to match the wattage and connector type to avoid compatibility issues.

Signs You Need a New HP EliteDesk 800 G1 SFF Power Supply

Over time, your power supply may wear out or fail due to age, overheating, or electrical surges. Watch for the following warning signs:

• PC does not power on at all

• Intermittent restarts or random shutdowns

• Burning smell or electrical noise from PSU

• No power to motherboard or fans

• Visible bulging capacitors or corrosion

If you experience any of these issues, it’s time to replace the power supply to avoid further damage to your motherboard or data loss.

How to Replace the HP EliteDesk 800 G1 SFF Power Supply

Replacing the HP EliteDesk 800 G1 SFF PSU is a straightforward process if you follow these steps carefully.

Step 1: Power Down and Disconnect

1. Shut down the computer and unplug the AC power cord.

2. Disconnect all peripherals and external devices.

3. Press the power button for a few seconds to discharge residual current.

Step 2: Open the Case

1. Lay the PC on a flat surface.

2. Slide and lift off the side cover.

3. Locate the power supply unit at the rear top section of the chassis.

Step 3: Disconnect Cables

1. Unplug the main 6-pin power connector from the motherboard.

2. Disconnect SATA power cables from storage drives.

3. Unplug any additional fan or peripheral connectors.

Step 4: Remove the Power Supply

1. Unscrew the PSU mounting screws at the back of the chassis.

2. Slide out the power supply carefully.

3. Keep screws safely for reuse.

Step 5: Install the New Power Supply

1. Slide the new PSU into the same position.

2. Secure it with screws.

3. Reconnect all power cables firmly (main connector, SATA, and fan power).

4. Reassemble the case and reconnect power.

After installation, power on the system to ensure all fans spin and the system boots normally.

Tips for Choosing the Right Replacement Power Supply

When buying a replacement HP EliteDesk 800 G1 SFF power supply, always check these factors:

• Wattage: Choose a PSU with the same or higher wattage (240W–320W).

• Connector Type: Ensure the 6-pin motherboard connector and SATA cables are compatible.

• Certification: Prefer 80 PLUS Bronze or better for efficiency.

• Warranty: Go for units with at least a 6–12 month warranty.

• Vendor Reputation: Buy from trusted sellers or HP-certified service centers.

If you are in Nairobi, Kenya, you can get original and high-quality HP EliteDesk 800 G1 SFF PSUs from reputable shops such as Lansotech Solutions and Native Drive, both known for offering genuine HP spare parts and expert installation services.

Maintaining Your Power Supply for Longer Life

To keep your PSU running efficiently for years:

1. Regular Cleaning: Dust buildup can block ventilation. Clean your PC every few months.

2. Use a UPS: Protect against power surges and blackouts.

3. Ensure Proper Ventilation: Avoid placing your PC near heat sources.

4. Check Fan Function: If your PSU fan stops spinning, replace it immediately.

5. Avoid Overloading: Don’t connect excessive devices that exceed power limits.

These simple maintenance steps can extend the lifespan of your power supply and prevent premature failure.

Where to Buy HP EliteDesk 800 G1 SFF Power Supply in Kenya

If you’re looking for reliable, original, or refurbished HP EliteDesk 800 G1 SFF power supplies, we recommend sourcing from professional IT suppliers such as:

• Lansotech Solutions – Trusted for computer parts, power supplies, and repair services in Nairobi.

• Native Drive Kenya – Specialized in refurbished and new computer components with nationwide delivery.

• HP Authorized Resellers – For genuine OEM replacements with full warranty coverage.

These suppliers offer both new and tested used power supplies for HP EliteDesk desktops at competitive prices, with installation support available.