Hp compaq dc7900 ultra slim desktop power supply

Specification Details
Compatible Model: HP Compaq DC7900 Ultra Slim Desktop (USDT)
Power Supply Type: External AC-DC Power Adapter
Maximum Output Power: 135 W
Input Voltage Range: 100 – 240 VAC
Input Frequency: 50 / 60 Hz
Rated Input Current: Approx. 2.4 A @ 100 VAC / 1.2 A @ 200 VAC
Output Voltage: 19.5 V DC
Output Current: 6.92 A
Connector Type: HP proprietary DC barrel connector
Efficiency: Active Power Factor Correction (PFC)
Safety Features: Over-voltage, short-circuit protection

 

Compatible with Following Models:

For HP Compaq Elite 8200, 8300 All-in-One
For HP Compaq Pro 6300 All-in-One
For HP Compaq dc7800, dc7900 Ultra-slim Desktop PC
For HP Compaq 7800, 7900, 8000, 8200, 8300 Elite Ultra-Slim Desktop PC
For HP Compaq 6005 Pro Ultra-slim Desktop PC
For HP EliteDesk 800 G1 Ultra-slim PC

Brand:

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Description

Hp compaq dc7900 ultra slim desktop power supply

Learn about the creativity that goes into the compaq dc7900 slim desktop power supply, a vital component that ensures dependable and seamless performance and the engine that drives this workhorse. To enhance user experience, let’s look at the features and compatibility of the HP compaq elite 8300 ultra slim desktop power supply.

Details about the Hp compaq dc7900 ultra slim desktop power supply

Boosting Efficiency: Comprehending the Specifications

With a sturdy 135W capacity and precision engineering designed to fit compaq dc7900 slim desktop power supply models, the compaq dc7900 ultra slim desktop power supply is a powerful tool. This unit, which is a representation of durability and efficiency, has several connectors to meet the requirements of the system.

Advantage:

High quality with 100% brand new

over charge, over current, over voltage, short-circuit and over heat protection

High precise output voltage, small wave and low interference

Made of quality components and circuit board

Wide input voltage range, in line with global usage standards.

Safe and durable: Full load high temperature burning machine, 100% aging test.

What Is the HP Compaq DC7900 Ultra Slim Desktop Power Supply?

The HP Compaq DC7900 Ultra Slim Desktop (USDT) uses an external power adapter instead of a large internal power supply like standard desktop PCs. This design allows the system to remain compact and energy-efficient, making it ideal for offices, retail, and business environments where space and noise are priorities.

Unlike full-sized desktops that use internal power supply units (PSUs), the DC7900 Ultra Slim relies on a 135 W external AC-DC power adapter that plugs into the back of the desktop. This adapter converts mains AC power into low-voltage DC power, which the desktop uses to operate all its internal components safely and efficiently.


Why the Correct Power Supply Matters

Choosing the right power supply for your HP Compaq DC7900 Ultra Slim Desktop is vital for several reasons:

 Stable Performance

Using the correct power adapter delivers consistent and stable power, preventing system crashes and unexpected shutdowns.

Safety and Protection

The proper adapter protects your PC from electrical issues like overvoltage, short circuits, and voltage fluctuations, which can damage sensitive components. Optimal Efficiency

An adapter with the right specifications ensures your desktop runs efficiently, reduces heat, and lowers energy consumption — especially important in settings like offices or retail spaces.

 Longevity

Correct power delivery helps protect internal components and extends the lifespan of your desktop.


Common Signs of a Faulty Power Supply

At Lansotech Solutions — your trusted tech shop in Kenya, we often diagnose the following symptoms when a DC7900 Ultra Slim power adapter is failing:

  • PC does not power on at all

  • No LED power indicator light

  • The system turns off suddenly

  • Power adapter feels unusually hot

  • Burning smell near the adapter cable or connector

If any of these occur, a power supply check should be your first step before troubleshooting internal hardware.


Power Adapter Replacement Tips

When replacing the power supply for the HP Compaq DC7900 Ultra Slim Desktop:

✔ Always match the output voltage (V), current (A), and wattage (W) exactly
✔ Use a high-quality or genuine HP compatible adapter
✔ Avoid low-quality or generic adapters with unknown specifications
✔ Ensure the connector matches the original DC7900 Ultra Slim port

Using an incorrect power supply can damage your desktop or lead to long-term reliability issues.


Where to Find Power Supplies in Kenya

At Lansotech Solutions, we supply and test authentic and quality replacement power adapters for business desktops like the HP Compaq DC7900 Ultra Slim. Our services include:

  • Correct adapter identification

  • Compatibility confirmation

  • Installation and testing

  • After-sales support

We help businesses, schools, and individuals find the right replacement part quickly and confidently.

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