1. Introduction
The Mars Gaming MPB750 is a 750W power supply unit (PSU) certified with 80 Plus Bronze 230V EU efficiency. It is designed to provide stable and efficient power to your personal computer, ensuring optimal performance and energy savings. This manual provides essential information for the proper installation, operation, and maintenance of your MPB750 PSU.
2. Safety Information
Please read and understand all safety instructions before installing or operating the power supply unit. Failure to do so may result in personal injury or damage to the product or other components.
- Ensure the power supply is disconnected from the main power outlet before installation or maintenance.
- Do not open the power supply casing. High voltages are present inside, and there are no user-serviceable parts.
- Install the power supply in a well-ventilated area to prevent overheating.
- Use only the cables provided with the power supply.
- This product is designed for use with personal computers. Do not use it for other applications.
3. Package Contents
Verify that all items are present in the package:
- Mars Gaming MPB750 Power Supply Unit
- AC Power Cord
- Mounting Screws
- User Manual (this document)
4. Setup and Installation
Follow these steps to install the Mars Gaming MPB750 power supply unit into your PC system.
- Prepare Your System: Ensure your computer is powered off and unplugged from the wall outlet. Open your PC case to access the power supply mounting area.
- Mount the PSU: Carefully place the MPB750 into the designated power supply bay in your PC case. Align the screw holes and secure the PSU with the provided mounting screws.
- Connect Main Power: Connect the 20+4 pin ATX connector to the corresponding port on your motherboard. Ensure it is firmly seated.
- Connect CPU Power: Connect the 4+4 pin 12V CPU connector to the CPU power port on your motherboard.
- Connect Graphics Card Power: If your graphics card requires external power, connect the 6+2 pin PCIe connectors to the graphics card. The MPB750 provides two such connectors.
- Connect Peripherals: Use the SATA connectors for storage drives (HDDs, SSDs) and optical drives. Use the PATA (Molex) connectors for older peripherals or case fans if needed. The MPB750 includes 4 SATA and 2 PATA connectors.
- Cable Management: Utilize the flat, black, and extra-long cabling design of the MPB750 to route cables efficiently within your case, improving airflow and aesthetics.
- Close Case and Connect AC Power: Once all connections are secure, close your PC case. Connect the AC power cord to the power supply and then to a wall outlet.
Figure 1: Mars Gaming MPB750 Power Supply installed in a PC case, demonstrating its compact fit and 750W power capability.
Figure 2: Illustration of the various connectors included with the MPB750: 24-pin ATX, 4+4-pin CPU, Molex, SATA, and 6+2-pin PCIe connectors.
5. Operating Instructions
The Mars Gaming MPB750 is designed for reliable and efficient operation.
- Power On/Off: After installation, flip the power switch on the back of the PSU to the 'I' (On) position. You can then power on your computer using the case's power button. To power off, shut down your computer normally and then flip the PSU switch to 'O' (Off) for complete power disconnection.
- SilentRPM Technology: The MPB750 features SilentRPM technology, which intelligently controls the fan speed. The fan operates at a low noise level, as quiet as 10 dB, until the power supply reaches 40% load, ensuring quiet operation during typical use.
- High Efficiency: The 80 Plus Bronze 230V EU certification guarantees an efficiency of over 90%, reducing energy waste and operating costs.
- Stable Power Delivery: Equipped with a 12V single rail design and Active PFC (Power Factor Correction), the MPB750 provides consistent and stable power to all your components.
Figure 3: The 80 Plus Bronze 230V EU certification logo, indicating high energy efficiency for the Mars Gaming MPB750.
Figure 4: Close-up view of the 120mm FDB fan with AI-RPM technology, responsible for the quiet and efficient cooling of the MPB750.
6. Maintenance
Proper maintenance ensures the longevity and optimal performance of your MPB750 power supply.
- Dust Cleaning: Periodically clean the exterior of the power supply and the fan grille to prevent dust buildup. Use compressed air or a soft brush. Ensure the PSU is powered off and unplugged before cleaning.
- Ventilation: Ensure that the air intake and exhaust vents of the power supply are not obstructed. Maintain good airflow within your PC case.
- Cable Inspection: Occasionally check all cable connections to ensure they are secure and free from damage.
7. Troubleshooting
If you encounter issues with your Mars Gaming MPB750, refer to the following common troubleshooting steps:
- No Power:
- Check if the AC power cord is securely connected to both the PSU and the wall outlet.
- Ensure the power switch on the back of the PSU is in the 'I' (On) position.
- Verify that the 20+4 pin ATX and 4+4 pin CPU power connectors are correctly and firmly seated on the motherboard.
- Test the wall outlet with another device to ensure it is functional.
- System Instability/Random Shutdowns:
- Ensure all power connectors to components (motherboard, CPU, GPU, drives) are securely connected.
- Check for proper ventilation within your PC case to prevent overheating of components, including the PSU.
- The MPB750 includes multiple protection circuits (e.g., OVP, UVP, OPP, SCP) to prevent damage. If the PSU shuts down, it might be due to one of these protections being triggered. Disconnect power, wait a few minutes, and try again. If the issue persists, consult a professional.
- Loud Fan Noise:
- While the MPB750 features SilentRPM technology for quiet operation, excessive fan noise might indicate dust buildup. Refer to the Maintenance section for cleaning instructions.
- Ensure the PSU is not operating under sustained heavy load beyond its rated capacity.
If these steps do not resolve the issue, please contact Mars Gaming customer support or a qualified technician.
8. Specifications
Detailed technical specifications for the Mars Gaming MPB750 Power Supply Unit:
| Feature | Specification |
|---|---|
| Model | MPB750 |
| Rated Power | 750W |
| Efficiency Certification | 80 Plus Bronze 230V EU (up to 90%+) |
| Form Factor | ATX |
| Cooling | 120mm FDB Fan with AI-RPM Technology (SilentRPM, <10dB up to 40% load) |
| Input Voltage | 200-240Vac |
| Input Current | 5A |
| Input Frequency | 47-63Hz |
| PFC | Active PFC |
| DC Output Voltage | +3.3V, +5V, +12V, -12V, +5Vsb |
| Max. Output Current | +3.3V: 25A, +5V: 25A, +12V: 62A, -12V: 0.5A, +5Vsb: 3A |
| Combined Power | +3.3V/+5V: 130W, +12V: 744W, -12V: 6W, +5Vsb: 15W |
| Connectors | 1x 20+4 Pin ATX, 1x 4+4 Pin 12V, 4x SATA, 2x PATA (Molex), 2x 6+2 Pin PCIe |
| Dimensions (L x W x H) | 15 x 14.2 x 8.5 cm |
| Weight | 1.3 kg |
| Safety Features | OVP, UVP, OPP, SCP (Over Voltage, Under Voltage, Over Power, Short Circuit Protection) |
Figure 5: The Mars Gaming MPB750 Power Supply Unit, showing its physical design and the label detailing electrical specifications.
9. Warranty and Support
For warranty information, please refer to the documentation included with your product packaging or visit the official Mars Gaming website. Warranty terms and conditions may vary by region.
If you require technical assistance or have questions not covered in this manual, please contact Mars Gaming customer support through their official website or the contact information provided on your product packaging.
