This article covers CORSAIR RM1000x 完全モジュラーATX電源 低騒音.

Overview

The CORSAIR RMx series has long been a trusted name among PC builders, and the RM1000x continues that legacy as a fully modular, low-noise power supply. This 1000W unit is designed to meet the demands of modern high-end systems, featuring compliance with the latest Intel ATX 3.1 power standard and support for PCIe 5.1. With a native 12V-2x6 connector, it can directly power the newest graphics cards without requiring adapters.
Cybenetics Gold certification ensures up to 91% efficiency, which translates to lower heat generation and reduced electricity costs over time. The unit also features a 140mm FDB fan that delivers quiet operation, with a zero-RPM mode that keeps the fan completely still under light loads. This makes the RM1000x an excellent choice for users who prioritize both performance and acoustics.
Positioned in the high-end segment of the market, this power supply is aimed at enthusiasts building powerful gaming rigs or creative workstations. Its 1000W capacity provides ample headroom for flagship CPUs and GPUs, making it a future-proof investment for demanding applications.

Compatibility Guide

The RM1000x follows the standard ATX form factor, making it compatible with most PC cases on the market, including many E-ATX models. However, due to its relatively long depth, users with compact or mini-tower cases should verify clearance before purchasing. The unit measures approximately 180mm in length, which is typical for high-wattage ATX power supplies.
Motherboard compatibility is broad, covering ATX, Micro-ATX, and Mini-ITX boards with a standard 24-pin ATX connector. The unit provides two EPS12V 8-pin connectors for CPU power, ensuring support for even the most power-hungry processors. For peripherals and storage, it includes six SATA connectors and multiple PCIe connectors, accommodating a wide range of configurations.
In terms of capacity, 1000W is suitable for systems pairing high-end CPUs with flagship graphics cards. It also provides enough headroom for overclocking and multiple storage drives. However, for more modest builds, a lower-wattage unit would be more cost-effective.

Product Info

The CORSAIR RM1000x is available through CORSAIR's official store and major PC component retailers. Pricing typically falls around the 50,000 yen mark in Japan, though it can vary depending on the retailer and market conditions.
This unit occupies the high-end tier of the power supply market. Its combination of 1000W capacity, ATX 3.1 compliance, and Cybenetics Gold efficiency makes it a compelling option for enthusiasts building premium systems. The 10-year warranty further underscores its position as a long-term investment.
The fully modular design allows users to connect only the cables they need, keeping the interior of their PC case clean and improving airflow. The included embossed cables are slim and flexible, making routing and installation straightforward.

Best Use Cases

For gamers building a high-end rig with the latest flagship GPU, the RM1000x is an ideal choice. The 1000W capacity provides ample headroom for transient power spikes, ensuring stable performance during intense gaming sessions. The ATX 3.1 compliance means it's ready for next-generation components.
Content creators working with video editing, 3D rendering, or other GPU-accelerated tasks will also benefit from this unit. These workloads place sustained high load on both CPU and GPU, requiring a reliable power supply. The high efficiency and robust build quality of the RM1000x ensure consistent performance during long render sessions.
However, for users with more modest needs—such as office work or casual web browsing—this 1000W unit is overkill. A 500W to 650W power supply would be more than sufficient and more cost-effective for such scenarios.

Things to Consider

While the RM1000x is an excellent power supply, its 1000W capacity may be excessive for many builds. Users with mid-range CPUs and GPUs would be better served by a 650W or 750W unit, saving money without sacrificing performance.
The included embossed cables, while flexible and neat, may feel somewhat stiff to some users. Those who prioritize cable management aesthetics might want to consider custom sleeved cables, though this adds to the overall cost.
Additionally, the unit's physical size should be checked against your case's specifications. Its 180mm depth may not fit in smaller cases, so measuring your available space before purchase is advisable.

FAQ

Q: Which graphics cards is this power supply compatible with?
A: The RM1000x features a native 12V-2x6 connector, allowing direct connection to the latest high-end GPUs. It also includes multiple 8-pin PCIe connectors, ensuring compatibility with a wide range of graphics cards.
Q: What kind of system requires a 1000W power supply?
A: Systems pairing high-end CPUs with flagship GPUs, or those with multiple storage drives and extensive peripheral

Product Disclosure (Amazon)

  • Manufacturer: CORSAIR
  • Seller: EFI Global Store JP
  • Fulfilled by: EFI Global Store JP
  • ASIN: B0D9C3P46P
  • Note: This article covers a manufacturer-made product based on Amazon listing details.