Introduction
This manual provides essential information for the installation, operation, and maintenance of your new Laptop CPU Fan. Please read this manual thoroughly before installation to ensure proper function and longevity of the product. This fan is designed to replace the original CPU cooling fan in compatible Captiva Power Starter laptop models.
Compatibility
This CPU fan is compatible with the following Captiva Power Starter laptop models:
- R71-673
- R71-674
- R71-724
- R71-725
- R71-726
- R71-728
- R71-729
- R71-730
- R71-739
- R71-740
- R71-741
- R71-742
- R71-743
- R71-744
- BL5 70AO 22V1
- NL52NU
Please verify your laptop's model number before purchasing and installing to ensure proper fit and function.
Safety Information
Always disconnect the laptop from its power source and remove the battery before performing any internal maintenance or component replacement. Static electricity can damage electronic components; consider using an anti-static wrist strap. If you are unsure about any step, consult a qualified technician.
Setup and Installation
Replacing a laptop CPU fan requires disassembling parts of your laptop. Refer to your laptop's specific service manual for detailed disassembly instructions. The general steps are as follows:
- Prepare the Laptop: Power off the laptop completely and disconnect the AC adapter. Remove the battery.
- Access the Fan: Depending on your laptop model, you may need to remove the bottom cover, keyboard, or other components to access the CPU fan. Carefully unscrew and remove any panels or parts obstructing access.
- Disconnect Old Fan: Locate the existing CPU fan. Disconnect its power cable from the motherboard. Carefully unscrew the fan from its mounting points.
- Remove Old Fan: Gently lift and remove the old fan. Note the orientation for the new fan.
- Install New Fan: Position the new CPU fan in the same location and orientation as the old one. Secure it with the appropriate screws.
- Connect New Fan: Connect the new fan's power cable to the corresponding port on the motherboard. Ensure the connection is secure.
- Reassemble Laptop: Carefully reassemble all removed components and panels. Ensure all screws are tightened appropriately.
- Test Functionality: Reinsert the battery and connect the AC adapter. Power on the laptop and verify that the new fan operates correctly. Monitor CPU temperatures to ensure effective cooling.

Image: The Generic Laptop CPU Fan, showing the fan blades, metal housing, and the 4-pin connector cable. This is the component you will be installing.
Operation
Once installed, the CPU fan operates automatically, controlled by your laptop's system to regulate the CPU temperature. It will spin faster or slower depending on the thermal load to maintain optimal operating temperatures. No user intervention is typically required for its daily operation.
Maintenance
To ensure optimal performance and extend the lifespan of your CPU fan and laptop, periodic maintenance is recommended:
- Dust Removal: Over time, dust can accumulate on the fan blades and heatsink fins, reducing cooling efficiency. Use compressed air to gently blow dust out of the fan and heatsink vents. Do this in a well-ventilated area.
- Thermal Paste: If you are replacing the fan and heatsink assembly, or if you notice high temperatures after installation, ensure that fresh thermal paste is applied between the CPU and the heatsink.
- Regular Cleaning: Keep the laptop's external vents clear of obstructions.
Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Fan not spinning after installation. | Loose or incorrect cable connection. Fan is faulty. | Ensure the fan cable is securely connected to the motherboard. Verify the fan is compatible with your laptop model. If still not spinning, the fan may be defective. |
| Laptop overheating after fan replacement. | Improper thermal paste application. Fan not seated correctly. Dust accumulation. | Reapply thermal paste to the CPU. Ensure the heatsink and fan assembly are properly seated and screwed down. Clean any dust from the heatsink fins. |
| Fan making unusual noises. | Dust obstruction. Bearing wear. | Clean the fan blades and surrounding area. If the noise persists, the fan bearings may be worn, indicating a need for replacement. |
Specifications
- Product Type: Laptop CPU Cooling Fan
- Voltage: DC5V
- Current: 1A
- Compatibility: Captiva Power Starter R71 series (R71-673 to R71-744), BL5 70AO 22V1, NL52NU
- Dimensions: 11.81 x 7.87 x 3.94 inches (Product Dimensions from input)
- Weight: 1.1 Pounds (Product Dimensions from input)
- Manufacturer: Generic
- Country of Origin: China
Warranty Information
This product comes with a 90-day warranty from the date of purchase. This warranty covers manufacturing defects. Please retain your proof of purchase for warranty claims. For warranty service, please contact your seller.
Support
For further assistance or technical support, please refer to the seller's contact information provided at the point of purchase. It is recommended to consult professional repair services if you are not comfortable performing the installation yourself.





