Corsair RM1000x ATX 3.1

Corsair RM1000x ATX 3.1
The Corsair RM1000x ATX 3.1 computer power supply delivers stable and efficient 1000W performance for modern PC builds. Its design fully complies with the ATX 3.1 standard and holds both 80 PLUS Gold and Cybenetics Gold certifications, which confirm high energy conversion efficiency and minimal heat loss. It uses exclusively Japanese capacitors and supports modern graphics cards via a native 12VHPWR cable. Fully modular cabling and a quiet cooling mode make it ideal for use in high-performance gaming and workstation builds.
Key technologies of the Corsair RM1000x ATX 3.1 computer power supply
- Total power of 1000W reliably supplies even hardware-intensive builds
- 80 PLUS Gold certification confirms high energy conversion efficiency
- Fully modular cabling makes cable management inside the case easier
- Zero RPM mode keeps the fan off under low load
- 12VHPWR cable for direct connection to modern graphics cards
- ATX 3.1 standard support handles high fluctuations in component power draw
Choosing a power supply
When choosing a suitable PC power supply, the key parameter besides the format is its wattage. This indicates the maximum number of watts the power supply can continuously deliver to the components in the computer. It's a good idea to use an online calculator to work out the optimal wattage based on your chosen components.
Stable performance and the ATX 3.1 standard
The power supply delivers a continuous 1000W, sufficient for powering hardware-intensive builds with powerful processors and graphics cards. High energy efficiency is confirmed by 80 PLUS Gold and Cybenetics Gold certifications. Higher efficiency reduces waste heat generation and lowers electricity consumption. Support for the ATX 3.1 standard and PCIe 5.1 specification prepares the build for the demands of current and future components. The power supply handles the high, instantaneous power spikes of modern graphics cards and other peripherals. The package includes a native 16-pin 12VHPWR cable for direct connection of NVIDIA GeForce RTX 40 graphics cards.
Fully modular cabling and quiet operation
A fully modular cabling system simplifies installation and cable management inside the computer case. Using the elegant embossed cables, you can connect only those that your build actually needs. This reduces clutter and improves airflow. Cooling is handled by a 140mm fan with a fluid dynamic bearing and a magnetic dome structure that reduces noise. At low and medium loads, the fan remains completely switched off thanks to the Zero RPM Fan Mode. Active cooling only starts up under higher loads.
Components and power supply protection systems
The internal circuits use exclusively Japanese electrolytic capacitors. These components support stable power delivery and reliability even at full power in ambient temperatures up to 50°C. They are rated for an operating temperature of up to 105°C. The power supply integrates a set of safety features that continuously monitor electrical values and protect connected components from damage. The system protects the build against overvoltage and undervoltage, overload, short circuits, and overheating. If an anomaly is detected, it shuts down immediately, which is fundamental for safe and stable computer operation.
Wide connectivity of the Corsair RM1000x computer power supply
The cable set covers all the needs of modern and extensive builds. In addition to the basic 24-pin ATX cable and the 12VHPWR connector for graphics cards, the package also includes two separate 8-pin EPS/CPU connectors for powering even more demanding processors. Four 8-pin PCIe connectors are available for additional expansion cards. Extensive options for storage and other devices are then provided by twelve SATA connectors and six classic Molex connectors.
Connectors
- 1× ATX 24-pin
- 2× CPU 8-pin (4+4)
- 6× Molex 4-pin
- 4× PCI-E 8-pin (6+2)
- 12× SATA 15-pin
- 1× 12VHPWR 16-pin
Package contents
- Computer power supply
- Mounting screws
- 1× Power cable
- 1× ATX 24-pin
- 2× EPS / ATX 12V 8-pin (4+4)
- 1× PCIe 12V-2x6-pin (12+4)
- 4× 8-pin PCIe (6+2)
- 3× SATA (4 connectors)
- 2× PATA (3 connectors)
80 Plus certification in the European market
The 80 Plus certification was created to objectively evaluate the efficiency of computer power supplies. This gives users a simple and clear way to compare different models. In the European market (where a voltage of 230V is used), there are six levels of 80 Plus certification with set requirements for computer power supplies. Higher energy efficiency primarily means lower energy consumption.
| PC PSU load | Efficiency at 20% load | Efficiency at 50% load | Efficiency at 100% load |
|---|---|---|---|
| 80 PLUS | 82% | 85% | 82% |
| 80 PLUS Bronze | 85% | 88% | 85% |
| 80 PLUS Silver | 87% | 90% | 87% |
| 80 PLUS Gold | 90% | 92% | 89% |
| 80 PLUS Platinum | 92% | 94% | 90% |
| 80 PLUS Titanium | 94% | 96% | 94% |
Specifications
Performance and format
Equipment
Efficiency
Connectors
Cooling system
Dimensions
Specifications can be changed without notice. Images are for illustrative purposes only.

