1. Introduction
The Rosewill VMG 750W 80+ Gold Power Supply is a high-performance, fully modular unit designed to meet the demands of modern computing systems. Compatible with Intel ATX 3.0 & 3.1 standards and featuring a PCIe 5.1 12V-2x6 connector, this power supply delivers stable and efficient power with a focus on low noise and reliability.
This image displays the Rosewill VMG 750W power supply from a front-side angle, highlighting its compact, fully modular design and the prominent '80 PLUS GOLD' certification badge.
Key Features:
- Intel ATX 3.0 & 3.1 Ready: Ensures compatibility with the latest motherboard standards.
- Full Modular 80 PLUS Gold Certified: Provides high efficiency and allows for clean cable management.
- PCIe 5.1 / Gen 5 12+4 Pin 12V-2x6 Cable: Dedicated connector for next-generation graphics cards, delivering up to 600W.
- Up to 235% Power Excursion & 300% GPU Power Excursion: Designed to handle transient power spikes from high-performance components.
- Optimized Thermal Control: Steel shell with large vents and a 120mm FDB fan enhance cooling performance while maintaining low noise.
- Compact Build Ready: 140×150×86mm chassis (35% smaller than regular ATX PSUs) enables flexible small-form-factor integration.
- Safety Shield: Six-protection suite (OCP/OPP/OTP/OVP/SCP/UCP) ensures complete system security.
An illustrative image showing the Rosewill VMG 750W power supply installed within a modern PC case, highlighting its ATX 3.1 and PCIe 5.1 readiness for next-generation systems and graphics cards.
2. Setup and Installation
Before installing your new power supply, ensure your system is powered off and disconnected from the wall outlet. Always handle components with care and consider wearing an anti-static wrist strap.
Installation Steps:
- Prepare Your Case: Remove the old power supply if applicable. Ensure there is adequate space for the VMG 750W.
- Mount the PSU: Slide the power supply into its designated bay in your PC case. Secure it with the provided screws.
- Connect Modular Cables: Identify the necessary cables for your components (motherboard, CPU, GPU, SATA devices). Connect them to the appropriate ports on the power supply. The VMG 750W is fully modular, allowing you to use only the cables you need for a cleaner build.
This image provides a clear view of the fully modular cable connection ports on the Rosewill VMG 750W power supply, including dedicated sections for MB (Motherboard), CPU/PCI-E, PERIF/SATA, and the 12V-2x6 connector.
- Connect to Components: Route the connected cables to your motherboard, graphics card(s), and storage devices. Ensure all connections are firm and secure.
- Special GPU Connector: For next-generation graphics cards, utilize the vibrant orange 12V-2x6 connector. This dedicated cable delivers 600W directly to your GPU, eliminating the need for daisy-chaining.
This image focuses on the dedicated 12V-2x6 connector of the Rosewill VMG 750W power supply, illustrating its capability to deliver 600W of direct power to NVIDIA GeForce RTX 50 series GPUs, eliminating the need for daisy-chaining.
A comprehensive diagram illustrating the various modular cables included with the Rosewill VMG 750W power supply, such as the 24 PIN Motherboard, 4+4 PIN CPU, 6+2 PIN PCI-E, 12+4 PIN PCI-E 5, SATA, and 4 PIN Molex connectors.
- Cable Management: Organize cables neatly to improve airflow and aesthetics within your PC case.
- Final Check: Double-check all connections before closing your PC case and reconnecting power.
3. Operating Instructions
Once installed, the Rosewill VMG 750W power supply operates automatically, providing stable power to your system. It is designed for continuous operation within its specified limits.
Power On/Off:
- To power on your system, ensure the power supply's main switch (located at the rear of the unit) is in the 'ON' position, then press your computer's power button.
- To power off, shut down your operating system normally. For complete power disconnection, switch the power supply's main switch to 'OFF' and unplug the power cord from the wall outlet.
Fan Operation:
The VMG 750W features a 120mm Fluid Dynamic Bearing (FDB) fan, engineered for silent operation and efficient cooling. The fan speed is automatically controlled based on the power supply's temperature and load, ensuring optimal thermal performance without excessive noise.
This image shows the side of the Rosewill VMG 750W power supply, featuring the protective fan grille and the Rosewill branding, indicating the location of the 120mm FDB silent fan.
A visual representation of the Rosewill VMG 750W power supply's compact 140mm short-depth chassis, improved cooling with large vents, and whisper-quiet operation due to its 120mm rifle-bearing FDB fan.
4. Maintenance
Proper maintenance ensures the longevity and optimal performance of your Rosewill VMG 750W power supply.
Cleaning:
- Dust Removal: Periodically clean the exterior of the power supply and its fan grille to prevent dust buildup. Use compressed air to gently clear dust from the fan blades and internal components.
- Frequency: Cleaning frequency depends on your environment. In dusty conditions, more frequent cleaning may be necessary.
Warning: Always disconnect the power supply from the wall outlet and allow it to cool down before performing any cleaning or maintenance. Do not open the power supply casing, as it contains high voltage components and voids the warranty.
5. Troubleshooting
If you encounter issues with your Rosewill VMG 750W power supply, refer to the following common problems and solutions:
Common Issues and Solutions:
- No Power:
- Ensure the power cable is securely connected to both the PSU and the wall outlet.
- Verify the power supply's main switch is in the 'ON' position.
- Check all internal cable connections (24-pin motherboard, CPU, GPU, SATA) are firmly seated.
- Test the wall outlet with another device to ensure it has power.
- System Instability/Crashes:
- Ensure your system's power requirements do not exceed the PSU's 750W capacity.
- Check for loose cable connections.
- Verify proper ventilation around the PSU to prevent overheating.
- Fan Not Spinning:
- The FDB fan is temperature-controlled and may not spin at low loads. This is normal operation.
- If the system is under load and the fan is still not spinning, ensure no obstructions are blocking the fan.
Advanced Protection Suite:
The Rosewill VMG 750W is equipped with a comprehensive suite of protection features to safeguard your system:
- OCP (Over Current Protection): Prevents damage from sudden current surges.
- OPP (Over Power Protection): Auto-adjusts power output during overloads.
- OTP (Over Temperature Protection): Guards against critical overheating.
- OVP (Over Voltage Protection): Stabilizes voltage spikes instantly.
- SCP (Short Circuit Protection): Neutralizes short-circuit risks.
- UCP (Under Current Protection): Maintains performance during low voltage.
If any of these protections are triggered, the power supply may shut down to prevent damage. Disconnect power, wait a few minutes, and then re-evaluate your system's components and connections before attempting to power on again.
An image depicting a shield icon next to the Rosewill VMG 750W power supply, illustrating its advanced protection suite which includes OCP, OPP, OTP, OVP, SCP, and UCP.
6. Specifications
Below are the detailed technical specifications for the Rosewill VMG 750W Power Supply:
The product label on the Rosewill VMG 750W power supply, detailing AC input, DC output voltages and currents, Max. Total Power (750W), and various safety certifications.
| Attribute | Value |
|---|---|
| Model Name | VMG750 |
| Output Wattage | 750 Watts |
| Form Factor | ATX |
| Power Supply Design | Full Modular |
| Product Dimensions (L x W x H) | 5.51 x 5.9 x 3.38 inches |
| Item Weight | 5.19 pounds |
| Cooling Method | Air (120mm FDB Fan) |
| Compatible Devices | Personal Computer |
| Connector Type | ATX, PCI Express (12V-2x6) |
| Efficiency Certification | 80 PLUS Gold |
| Date First Available | June 26, 2025 |
7. Warranty and Support
Warranty Information:
The Rosewill VMG 750W Power Supply comes with a 5-Year Warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use. Please retain your proof of purchase for warranty claims.
Customer Support:
For technical assistance, troubleshooting, or warranty inquiries, please visit the official Rosewill website or contact Rosewill customer support through their dedicated channels. You can find more information and products at the Rosewill Store on Amazon.
