EVGA 750 N1 Power Supply User Manual

Introduction

The EVGA 750 N1 Power Supply is designed to provide reliable and efficient power for your personal computer system. This unit is an excellent choice for budget-conscious builds, offering robust connections and essential protections for stable operation. Its ultra-quiet fan design ensures near-silent performance, making it a valuable component for any PC setup.

Figure 1: EVGA 750 N1 Power Supply and packaging.

What's in the Box

Verify that all components listed below are included in your package:

• EVGA 750N1 Power Supply
• ATX Cable
• EPS Cable
• PCIE Cable
• SATA Cable
• Four-Pin Peripheral Cable
• Floppy Adapter
• AC Power Cable
• Installation Guide
• Power Supply Tester

Figure 2: Included power supply cables and accessories.

Setup and Installation

Follow these steps to properly install your EVGA 750 N1 Power Supply into your computer system:

1. Preparation: Ensure your computer is completely powered off and unplugged from the wall outlet. Open your computer case to access the power supply mounting area.
2. Mounting the Power Supply: Carefully slide the EVGA 750 N1 Power Supply into the designated bay in your computer case. Secure it using the provided screws.
3. Connecting Cables:
   • Connect the 24-pin ATX cable to your motherboard's main power connector.
   • Connect the 8-pin (4+4) EPS cable to your motherboard's CPU power connector.
   • Connect the appropriate PCIe cables (6+2 pin) to your graphics card(s). The 750W model supports modern components with a single +12V rail providing 59A.
   • Connect SATA power cables to your storage drives (HDDs, SSDs) and optical drives.
   • Use the Four-Pin Peripheral (Molex) cables for any other components requiring this connection, such as case fans or older peripherals.
   • If needed, use the Floppy Adapter for legacy devices.
4. Cable Management: Route cables neatly to improve airflow and aesthetics within your case.
5. Final Connection: Connect the AC Power Cable to the power supply's input port and then plug it into a wall outlet or surge protector. Ensure the power supply's main switch (located at the rear) is in the OFF position before plugging it in.
6. Power On: Flip the power supply's main switch to the ON position. Power on your computer.

Figure 3: Power supply with attached cables ready for connection.

Figure 4: Rear panel of the power supply with AC input and power switch.

Operating the Power Supply

The EVGA 750 N1 Power Supply operates automatically once installed and powered on. It features a 120mm sleeve bearing fan that provides quiet and intelligent auto fan operation for near-silent performance under normal loads. The power supply is designed to deliver stable power to all connected components.

This power supply includes heavy-duty protections to safeguard your system:

• OVP (Over Voltage Protection): Protects components from excessive voltage.
• UVP (Under Voltage Protection): Prevents damage from insufficient voltage.
• OCP (Over Current Protection): Guards against excessive current draw on individual rails.
• OPP (Over Power Protection): Shuts down the PSU if total power draw exceeds safe limits.
• SCP (Short Circuit Protection): Protects against short circuits in the system.

Maintenance

The EVGA 750 N1 Power Supply requires minimal maintenance. To ensure optimal performance and longevity:

• Dust Removal: Periodically clean the power supply's fan and vents to prevent dust buildup, which can impede airflow and lead to overheating. Use compressed air for best results. Ensure the power supply is unplugged before cleaning.
• Environmental Conditions: Operate the power supply within its specified operating temperature range of 0°C to 25°C. Avoid exposing it to excessive humidity or extreme temperatures.

Troubleshooting

If you encounter issues with your EVGA 750 N1 Power Supply, consider the following common troubleshooting steps:

• No Power:
  • Ensure the AC power cable is securely connected to both the power supply and the wall outlet.
  • Verify that the power supply's main switch at the rear is in the ON position.
  • Check if the wall outlet is functional by plugging in another device.
  • Confirm all internal power cables (24-pin ATX, EPS, PCIe, SATA) are firmly seated in their respective connectors.
• System Instability/Crashes:
  • Ensure your system's power requirements do not exceed the 750W capacity of the power supply.
  • Check for proper ventilation within your PC case to prevent overheating of components, including the PSU.
  • Verify that all power connections to components are secure.
• Unusual Noises:
  • A quiet fan operation is normal. If you hear loud or grinding noises, ensure no cables are obstructing the fan.
  • If the noise persists, it may indicate a fan issue.

Specifications

Figure 5: Electrical specifications label on the power supply unit.

Warranty and Support

The EVGA 750 N1 Power Supply comes with a standard 2-year warranty. For technical support, warranty claims, or additional information, please refer to the official EVGA website or contact their customer service directly.

You can also find additional resources and support documents, including a detailed user manual, on the product's Amazon page or EVGA's support portal.

For further assistance, you may visit the EVGA Store on Amazon.