1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your CORSAIR CX750M 80 PLUS Bronze Semi-Modular Low-Noise ATX 750 Watt Power Supply. The CX-M Series is designed for reliable, low-noise operation with excellent efficiency, making it suitable for a wide range of PC builds. Please read this manual thoroughly before installation to ensure proper and safe usage.
Figure 1: CORSAIR CX750M Power Supply Unit. This image shows the main view of the power supply, highlighting its compact design and semi-modular nature.
2. Setup and Installation
2.1 Safety Precautions
- Always disconnect the power cord from the wall outlet before installing or removing the power supply.
- Ensure your computer system is completely powered off and unplugged.
- Avoid opening the power supply unit. It contains high voltage components even when unplugged.
- Handle components with care to prevent electrostatic discharge (ESD). Consider using an anti-static wrist strap.
2.2 Package Contents
Verify that all components are present in the package:
- CORSAIR CX750M Power Supply Unit
- AC Power Cord
- Modular Cable Set (PCIe, SATA, PATA)
- Mounting Screws
- Cable Ties
- User Manual (this document)
Figure 2: Included components with the CORSAIR CX750M. This image displays the power supply, its packaging, and the various modular cables provided for system connectivity.
2.3 Installation Steps
- Prepare your PC Case: Open your computer case and locate the power supply mounting bay. Remove your old power supply if applicable.
- Mount the Power Supply: Carefully slide the CX750M into the power supply bay. Ensure the fan is facing the correct direction (usually downwards for bottom-mounted PSUs, or as per your case's design for optimal airflow). Secure the power supply to the case using the provided mounting screws.
- Connect Essential Cables:
- Connect the 24-pin ATX cable to your motherboard. This cable is permanently attached to the PSU.
- Connect the 8-pin (4+4) EPS/ATX 12V cable(s) to your motherboard's CPU power connector(s). The CX750M includes two such connectors for modern motherboards.
- Connect Modular Cables:
- Identify the necessary cables for your components (graphics card, SSDs, HDDs, optical drives, etc.).
- Plug the required modular cables into the corresponding ports on the power supply. The CX750M features clearly labeled ports for PCIe, SATA, and PATA connections.
- Connect the other end of these cables to your components.
Figure 3: Semi-Modular Cable Connectors. This diagram illustrates the types and quantities of modular cables included with the CX750M, such as ATX, EPS/ATX 12V, PCIe, PATA, and SATA connectors.
- Cable Management: Use cable ties to neatly route and secure cables, improving airflow and aesthetics within your case.
- Connect AC Power: Once all internal connections are secure, connect the AC power cord to the power supply and then to a wall outlet.
- Power On: Flip the power switch on the back of the power supply to the 'ON' position. Then, power on your computer.
3. Operation
The CORSAIR CX750M is designed for stable and efficient power delivery to your PC components. Once installed, its operation is largely automatic, providing power as needed by your system.
3.1 Efficiency and Low Noise
The CX750M features 80 PLUS Bronze certification, indicating high power efficiency. This means less wasted energy as heat, leading to lower operating temperatures and reduced electricity consumption. The power supply also incorporates a rifle bearing fan designed for low-noise operation, ensuring a quiet computing experience, especially under typical loads.
Figure 4: Low-Noise Operation. This graph illustrates the fan noise levels (in dB) of the CX750M across different power output levels, demonstrating its quiet performance.
Figure 5: 80 PLUS Bronze Efficiency. This graph shows the power efficiency percentage of the CX750M at various system loads for both 115Vac and 230Vac inputs, confirming its Bronze certification.
4. Maintenance
The CORSAIR CX750M is designed for long-term reliability with minimal maintenance. However, periodic cleaning can help ensure optimal performance and longevity.
4.1 Cleaning
- Frequency: Depending on your environment, clean your power supply and PC case every 6-12 months.
- Procedure:
- Ensure the power supply is completely disconnected from the wall outlet and the PC is off.
- Use compressed air to gently blow dust out of the power supply's fan grille and ventilation openings. Hold the fan blades gently to prevent them from spinning rapidly during cleaning, which can damage the bearing.
- Wipe down the exterior of the power supply with a dry, lint-free cloth.
Do not use liquid cleaners or immerse the power supply in any liquid.
5. Troubleshooting
If you encounter issues with your CORSAIR CX750M, refer to the following common troubleshooting steps:
| Problem | Possible Cause | Solution |
|---|---|---|
| PC does not power on. |
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| System unstable or crashes. |
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| Loud fan noise from PSU. |
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If the problem persists after following these steps, please contact CORSAIR customer support for further assistance.
6. Specifications
Detailed technical specifications for the CORSAIR CX750M Power Supply:
| Feature | Detail |
|---|---|
| Model Name | CX750M |
| Item Model Number | CP-9020222-NA |
| Brand | Corsair |
| Form Factor | ATX |
| Output Wattage | 750 Watts |
| Efficiency Certification | 80 PLUS Bronze |
| Cooling Method | Air (Rifle Bearing Fan) |
| Product Dimensions (L x W x H) | 5.51 x 5.91 x 3.39 inches (140 x 150 x 86 mm) |
| Item Weight | 3.3 pounds (1.5 Kilograms) |
| Connector Type | PCI Express |
| Compatible Devices | Personal Computer |
| Capacitors | Japanese 105°C-rated |
Figure 6: Product Dimensions. This diagram provides the exact measurements of the CORSAIR CX750M power supply, useful for case compatibility.
7. Warranty and Support
7.1 Warranty Information
The CORSAIR CX750M Power Supply is backed by a five-year warranty. This warranty covers defects in materials and workmanship under normal use. For detailed warranty terms and conditions, please refer to the official CORSAIR website or contact their customer support.
7.2 Customer Support
For technical assistance, troubleshooting, or warranty claims, please contact CORSAIR customer support through their official channels:
- Website: Visit the official CORSAIR support page for FAQs, drivers, and contact options. www.corsair.com/support
- Online Ticket System: Submit a support ticket for personalized assistance.
- Phone Support: Check the CORSAIR website for regional phone numbers.
When contacting support, please have your product model (CX750M) and serial number ready.
