SENLIFANG 180W Power Supply Unit User Manual

1. Introduction

This manual provides comprehensive instructions for the SENLIFANG 180W Power Supply Unit (PSU), designed for specific Lenovo desktop systems. It is crucial to read and understand all instructions before installation and operation to ensure safe and efficient use of the product. This PSU is compatible with Lenovo 510S, 700, 280 G2, and 400 G4 models, among others, and features a 180W maximum output with 4-pin and 6-pin CPU power connectors.

2. Safety Information

• Always disconnect the power cord from the wall outlet before installing, removing, or servicing the power supply or any other components.
• Ensure proper grounding to prevent electrical shock.
• Do not open the power supply unit casing. High voltages inside can cause severe injury or death. There are no user-serviceable parts inside.
• Keep the power supply away from moisture, extreme temperatures, and direct sunlight.
• Use only the specified input voltage range (100-240V AC).
• Ensure adequate ventilation around the power supply to prevent overheating.

3. Package Contents

• 1 x SENLIFANG 180W Power Supply Unit (Model: PA-1181-7 PCH018 00PC780)

4. Specifications

Detailed Electrical Specifications (from product label):

Image: Product label with detailed electrical specifications and certifications.

5. Installation

5.1 Pre-installation Checks

• Verify that the new PSU is compatible with your computer model (e.g., Lenovo 510S, 700, 280 G2, 400 G4).
• Ensure your workspace is clean, well-lit, and static-free. Use an anti-static wrist strap if available.
• Gather necessary tools: Phillips head screwdriver.

5.2 Physical Installation

1. Power Off and Disconnect: Shut down your computer completely and unplug the power cord from the wall outlet.
2. Open Case: Open your computer case according to your system's manual.
3. Remove Old PSU: Disconnect all power cables from the motherboard and other components. Unscrew the old PSU from the case and carefully remove it.
4. Install New PSU: Carefully place the new SENLIFANG PSU into the designated slot in your computer case. Ensure it aligns with the screw holes.
5. Secure PSU: Secure the PSU to the computer case using the appropriate screws.

5.3 Connecting Cables

Connect the power cables from the new PSU to your computer's components. Refer to your motherboard and component manuals for specific connection points.

• Motherboard Power: Connect the main 24-pin ATX power connector to your motherboard.
• CPU Power: Connect the 4-pin and/or 6-pin CPU power connectors to the corresponding ports on your motherboard. This PSU provides both 4-pin and 6-pin connectors.
• Peripheral Power: Connect SATA power connectors to your hard drives, SSDs, and optical drives. Connect Molex connectors to any other peripherals requiring them.
• Graphics Card Power (if applicable): If your graphics card requires additional power, connect the appropriate PCIe power connectors (not explicitly shown on this PSU, but standard for higher wattage PSUs).

Image: Front view of the 180W PSU showing 4-pin and 6-pin connectors.

Image: Close-up of the 4-pin and 6-pin power connectors.

6. Close Case: Once all connections are secure, close your computer case.
7. Reconnect Power: Plug the power cord back into the wall outlet.

6. Operation

After successful installation, your computer should power on normally. The power supply operates automatically, providing stable power to your system components. Ensure that the computer's power button is pressed to initiate startup.

7. Maintenance

• Cleaning: Periodically clean the exterior of the PSU and the computer case's ventilation areas with compressed air to remove dust buildup. Dust can impede airflow and lead to overheating.
• Inspection: Regularly check power cables for any signs of wear, fraying, or damage. Ensure all connections are secure.
• Environment: Operate the computer in a cool, dry, and well-ventilated environment to optimize PSU performance and lifespan.

8. Troubleshooting

• No Power:
  • Check if the power cord is securely plugged into both the PSU and the wall outlet.
  • Ensure the power switch on the back of the PSU (if present) is in the 'ON' position.
  • Verify all internal power connections (24-pin, 4/6-pin CPU, etc.) are firmly seated.
  • Test the wall outlet with another device to confirm it has power.
• System Instability/Random Shutdowns:
  • This could indicate an overloaded or failing PSU. Ensure your system's power requirements do not exceed the PSU's 180W capacity.
  • Check for proper ventilation and ensure the PSU fan is operating. Overheating can cause instability.
• Burning Smell/Smoke:
  • Immediately power off the computer and unplug it from the wall. Do not attempt to use the PSU again. Contact support.

9. User Tips

• Cable Management: Organize your cables neatly within the computer case to improve airflow and prevent interference with components.
• Compatibility Check: Always double-check the specific model numbers and connector types required by your Lenovo system before purchasing a replacement PSU. This PSU is specifically designed for certain Lenovo models and may not be universally compatible.
• Power Requirements: While this PSU provides 180W, ensure your system's total power draw (including CPU, GPU, drives, etc.) does not exceed this limit, especially if you have upgraded components.

10. Warranty and Support

For warranty information, technical support, or service inquiries, please contact your retailer or the manufacturer directly. Keep your purchase receipt as proof of purchase. Do not attempt to repair the unit yourself, as this may void the warranty and pose safety risks.