Rosewill VMG 850W ATX 3.1 80+ Gold Full Modular Power Supply User Manual

Introduction

This manual provides essential information for the installation, operation, maintenance, and troubleshooting of your Rosewill VMG 850W ATX 3.1 80+ Gold Full Modular Power Supply. Please read this manual thoroughly before installation and retain it for future reference. This power supply is designed for personal computer systems, offering reliable and efficient power delivery.

Image: Rosewill VMG850 Power Supply overview.

Setup and Installation

Proper installation is crucial for the optimal performance and safety of your power supply. Ensure your system is powered off and unplugged from the wall outlet before proceeding.

Package Contents

• Rosewill VMG 850W Power Supply
• Modular Cable Set
• AC Power Cord
• Mounting Screws
• User Manual

Installation Steps

1. Prepare Your PC Case: Open your PC case and locate the power supply mounting area.
2. Mount the Power Supply: Insert the Rosewill VMG850 into the designated slot in your PC case. Secure it with the provided mounting screws.
3. Connect Modular Cables: Identify the necessary cables for your components (motherboard, CPU, GPU, SATA devices). Connect them to the corresponding ports on the power supply. The VMG850 is a full modular unit, allowing you to connect only the cables you need for improved cable management and airflow.


Image: Modular cable connection panel on the Rosewill VMG850.

4. Connect Main Power Cables:
   • Connect the 24-pin ATX cable to your motherboard.
   • Connect the 4+4 pin CPU power cable(s) to your motherboard.
5. Connect Graphics Card (GPU) Power: For modern graphics cards, utilize the dedicated PCIe 5.1 / Gen 5 12V-2x6 cable. This connector delivers up to 600W of direct power. Ensure it is securely connected to both the power supply and your graphics card.


Image: Detail of the 12V-2x6 connector for next-gen GPUs.

6. Connect Peripheral Cables: Connect SATA power cables to your storage drives (SSDs, HDDs) and other peripherals as needed.


Image: Overview of included modular cables and connectors.

7. Cable Management: Route cables neatly to improve airflow and aesthetics within your case.
8. Close Case and Connect Power: Close your PC case, connect the AC power cord to the power supply, and plug it into a wall outlet.

Operating Instructions

The Rosewill VMG 850W power supply is designed for stable and efficient operation. Once installed, your system should power on normally.

• Power On: Press the power button on your computer case. The power supply will initiate and provide power to your components.
• Efficiency: This unit is 80 PLUS Gold certified, indicating high power efficiency, which reduces heat generation and operating costs.
• Fan Operation: The 120mm FDB (Fluid Dynamic Bearing) fan operates silently and adjusts its speed based on the power supply's temperature, ensuring optimal cooling without excessive noise.
• ATX 3.1 Compliance: The VMG850 is fully compliant with ATX 3.0 and 3.1 standards, supporting up to 235% power excursion and 300% GPU power excursion for demanding loads.

Image: Front view of the Rosewill VMG850 Power Supply.

Maintenance

Regular maintenance helps ensure the longevity and optimal performance of your power supply.

• Dust Removal: Periodically clean dust from the power supply's fan grille and vents using compressed air. Ensure the system is powered off and unplugged before cleaning.
• Cable Inspection: Occasionally check all modular cable connections to ensure they are secure and free from damage.
• Environment: Operate the power supply in a well-ventilated area, avoiding extreme temperatures or humidity.

Image: Top view of the VMG850, highlighting the fan for maintenance.

Troubleshooting

If you encounter issues with your power supply, refer to the following common troubleshooting steps:

• No Power:
  • Ensure the AC power cord is securely connected to both the power supply and the wall outlet.
  • Verify the power switch on the back of the PSU is in the 'ON' position.
  • Check all modular cable connections, especially the 24-pin motherboard and CPU power cables.
• System Instability/Crashes:
  • Ensure your system's power requirements do not exceed the 850W capacity of the PSU.
  • Check for proper ventilation to prevent overheating.
  • Verify all power connections are firm.
• Unusual Noises:
  • A slight fan noise is normal under load. If the noise is excessive or grinding, ensure no cables are obstructing the fan.
  • If the issue persists, contact customer support.

Safety Features

The Rosewill VMG850 includes a comprehensive six-protection suite to ensure system safety:

• OCP (Over Current Protection): Prevents damage from sudden current surges.
• OPP (Over Power Protection): Automatically 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.

Image: Visual representation of the advanced protection suite.

Specifications

Image: Electrical specifications label on the VMG850.

Warranty and Support

The Rosewill VMG 850W Power Supply comes with a 5-year warranty from the date of purchase. This warranty covers defects in materials and workmanship under normal use.

Warranty Claims

For warranty service or technical support, please contact Rosewill customer service. You may need to provide proof of purchase and the product's serial number.

Contact Information

Please refer to the official Rosewill website or your product packaging for the most up-to-date contact information for customer support.