1. Introduction
This manual provides essential information for the installation, operation, and maintenance of your Corsair RM750e Fully Modular Low-Noise ATX Power Supply. The RM750e is designed to deliver reliable and efficient power to your PC, featuring 80 PLUS Gold efficiency and fully modular cabling for simplified system builds.
Image: Corsair RM750e Power Supply highlighting its technology and reliability features.
2. Safety Information
Please read and follow all safety instructions before installing or operating your power supply. Failure to do so may result in damage to the product, personal injury, or electric shock.
- Do not open the power supply unit. High voltages are present inside, even when disconnected from power.
- Do not insert any objects into the fan grille or ventilation openings.
- Do not block the ventilation openings of the power supply. Ensure adequate airflow.
- Do not use the power supply in high humidity or extreme temperature environments.
- Ensure the power supply is correctly installed and secured in your PC case.
- Use only the modular cables provided with your Corsair RM750e power supply. Using incompatible cables can cause severe damage to your system.
- Before connecting or disconnecting any cables, ensure the system is powered off and the power cord is unplugged from the wall outlet.
3. Package Contents
Verify that all items are present in your package:
- Corsair RM750e Power Supply Unit
- AC Power Cord
- Modular Cable Set (including 24-pin ATX, EPS12V, PCIe, SATA, Peripheral cables)
- Mounting Screws
- Cable Ties or Velcro Straps
- User Manual (this document)
4. Setup and Installation
Follow these steps to install your Corsair RM750e power supply:
- Preparation: Ensure your computer is completely powered off and unplugged from the wall outlet. Open your PC case to access the power supply mounting area.
- Remove Old PSU (if applicable): Disconnect all cables from your old power supply and remove it from the case.
- Mount the New PSU: Carefully place the Corsair RM750e into the power supply bay of your PC case. Ensure the fan is facing the correct direction for optimal airflow (typically facing down if your case has a bottom vent, or up if it's a top-mounted PSU with no bottom vent). Secure the PSU with the provided mounting screws.
- Connect Modular Cables: The RM750e features fully modular cabling. Connect only the necessary cables to the power supply first, then route them to your components. Refer to the image below for port identification.
Image: Modular cable connection ports on the Corsair RM750e power supply.
- 24-pin ATX Cable: Connect to the motherboard's main power connector.
- EPS12V (CPU) Cables: Connect one or two 8-pin (or 4+4-pin) EPS12V cables to your motherboard's CPU power connectors.
- PCIe Cables: Connect 6+2-pin PCIe cables to your graphics card(s).
- SATA Cables: Connect SATA power cables to SSDs, HDDs, and optical drives.
- Peripheral (Molex) Cables: Connect to other peripherals as needed.
- Cable Management: Use the provided cable ties or Velcro straps to manage cables for better airflow and a cleaner build.
- Connect AC Power: Once all internal connections are made, connect the AC power cord to the power supply's inlet and then to a wall outlet. Ensure the power switch on the back of the PSU is in the 'O' (off) position before plugging it into the wall.
- Power On: Flip the power switch on the back of the PSU to the 'I' (on) position. You can now power on your computer.
Image: Rear view of the Corsair RM750e, illustrating the AC power inlet and the main power switch.
5. Operating Instructions
The Corsair RM750e is designed for reliable, low-noise operation. Once installed, it requires minimal user interaction.
- Zero RPM Fan Mode: The power supply features a Zero RPM fan mode. The 120mm rifle bearing fan will not spin at low to moderate loads, ensuring near-silent operation. The fan will automatically activate when the load increases to maintain optimal temperatures.
- Modern Standby Support: The RM750e supports Modern Standby sleep mode, allowing for faster wake-from-sleep times and improved low-load efficiency.
Image: Corsair RM750e fan, illustrating its low-noise operation and Zero RPM fan mode.
6. Maintenance
Regular maintenance helps ensure the longevity and optimal performance of your power supply.
- Dust Cleaning: Periodically clean dust from the power supply's fan grille and ventilation openings using compressed air. Ensure the system is powered off and unplugged before cleaning.
- Fan Inspection: Occasionally inspect the fan for any obstructions or unusual noises. If the fan is not spinning when under load, or if it makes excessive noise, consult the troubleshooting section or contact support.
7. Troubleshooting
If you encounter issues with your Corsair RM750e, try the following troubleshooting steps:
| Problem | Possible Solution |
|---|---|
| System does not power on. |
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| System powers on but is unstable or crashes. |
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| PSU fan is not spinning. |
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| Unusual noises from the PSU. |
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8. Specifications
Detailed technical specifications for the Corsair RM750e Power Supply:
| Feature | Specification |
|---|---|
| Model Name | RM750e |
| Item Model Number | CP-9020248-NA |
| Output Wattage | 750 Watts |
| Efficiency Rating | 80 PLUS Gold |
| Form Factor | ATX |
| Modularity | Fully Modular |
| Fan Type | 120mm Rifle Bearing Fan |
| Cooling Method | Air |
| Capacitors | 105°C-Rated |
| Dimensions (LxWxH) | 5.91 x 5.51 x 3.39 inches (150 x 140 x 86 mm) |
| Item Weight | 3.31 pounds (1.5 kg) |
| Color | Black |
| Compatible Devices | Personal Computer |
| Connector Type | ATX, PCIe |
9. Warranty and Support
The Corsair RM750e Power Supply comes with a seven-year warranty, ensuring long-term reliability and peace of mind.
For technical support, warranty claims, or additional product information, please visit the official Corsair website:
You can also find the latest drivers, software, and FAQs on their support pages.
