Corsair RMx Series RM1000x – Hands-on and Quick Review

Corsair RMx Series RM1000x – In recent times, as graphics cards increasingly demand higher power consumption than older design standards, developments in the power supply market have rapidly accelerated to meet these demands through various new technologies, from the 12VHPWR connection standard of ATX 3.0/PCIe 5.0, higher-performance components, to intelligent cooling features and increased performance requirements.

With next-generation graphics cards from both teams expected to launch soon, Corsair has upgraded its RMx Series power supplies to ATX 3.1 compliance, introducing an improved 12VHPWR connector, carefully selected power components, and the addition of a fan speed control knob and a smooth 'Zero RPM' mode.

With the top-of-the-line Corsair RM1000x RM1000x power supply , can the most demanding power requirements of the latest CPUs and graphics cards be easily met, when even power supplies released just a few years ago are already becoming less effective?

Join tipsplay.net as we unbox and discover the surprises this power supply has to offer!

Corsair RMx Series RM1000x – Powerful yet 'quiet'!

At first glance, the Corsair RMx Series RM1000x power supply doesn't offer many flashy features like the synchronized RGB fans on the Corsair CX550F RGB or the OLED display on the ROG Thor 850W Platinum. Instead, it focuses entirely on power delivery through capacitor design and efficiency, along with upgraded cooling fans to reduce noise and enhance the user experience.

Right from the front of the box, the power supply is presented with just three pieces of information: support for ATX 3.1/PCIe 5.1 standards, two efficiency and noise certifications from Cybernetics, and the model name of the 1000W efficiency version.

Similar to recent product lines that use paper packaging to reduce plastic waste, the Corsair RMx Series RM1000x is 'packaged' in shock-absorbing and anti-static packaging, with accessories hidden in a small box next to it.

With its modular cable design, the Corsair RMx Series RM1000x is equipped with a new Type-4 power cable featuring a thin braided design, improving flexibility for more versatile cable management compared to the commonly used cut-resistant braided cable. However, this design still falls short in terms of flexibility compared to the fabric cables on the SF Series power supplies for ITX systems, or the separately sold Corsair Premium Individually Sleeved Type 4 cables.

To meet the 'heavy-duty' demands of systems using powerful CPUs and graphics cards, Corsair equips the power supply with two pairs of 12V 8-pin (4+4) EPS/ATX connectors and four sets of 8-pin (6+2) PCIe connectors, supporting simultaneous connection of six CPU and PCIe ports to provide better support than the 2 CPU + 2 PCIe or 1 CPU + 3 PCIe configurations found on many common power supplies such as the MSI MPG A1000G.

When combined with the included cable guide combs, the Corsair RMx Series RM1000x cable set offers unique flexibility in bending and securing suspended cables, enhancing the aesthetics of systems that want to showcase their internal components. When positioned through hidden cable corners on the back of the case, the cable set demonstrates high flexibility, resulting in a neater overall cable arrangement.

Compliant with ATX 3.1/PCIe 5.1 standards, the Corsair RMx Series RM1000x features a 12V-2x6 power connector instead of the 12VHPWR of the ATX 3.0/PCIe 5.0 standard, which was first popularized on NVIDIA RTX 30 Series graphics cards.

Offering improved compatibility and safety for the increasingly demanding power requirements of high-end graphics cards like the NVIDIA RTX 40 Series, the 12V-2x6 power connector features redesigned power pin and sense pin lengths to address issues previously encountered with its predecessors, such as power wire burnout due to loose connections.

When performance is combined with quiet operation, the Corsair RMx Series RM1000x features a mechanical fan control knob with a 'Zero RPM' mode to better support fan speed settings during operation, while also offering the ability to completely shut off the fan when the power is operating below 50% capacity.

Manufactured by Channel Well Technology (CWT), this power supply is similar to other mid-range and high-end power supplies from Corsair, offering high build quality with 100% Japanese electrolytic capacitors capable of withstanding temperatures up to 105°C, ensuring operating temperatures remain below 50°C.

To provide consumers with a more rigorous performance evaluation standard, the Corsair RMx Series RM1000x is one of the first Corsair product lines to use Cybernetics certification exclusively, instead of alongside the familiar 80 Plus certification, according to the company, to ensure the most detailed and accurate assessment of power supply quality.

Compared to 80 Plus, Cybernetics offers 6 levels of efficiency certification with nearly identical names instead of 5, assessed based on efficiency, power factor, and standby power. The Diamond certification, designed for top-tier power supplies, requires an average efficiency above 93% with a 5VSB efficiency above 79%, standby power consumption of only 0.10W, and a power factor above 0.985.

In addition to performance, Cybernetics also offers seven certification levels for average noise levels during use, the lowest being Standard at 40 to 45 dB(A) and the highest being A++ with noise levels below 15 dB(A).

According to the announcement, the Corsair RMx Series RM1000x is Cybernetics Gold certified with an average efficiency of over 87% and a Cybernetics A- rating for noise levels, with an average noise level of 25 to 30 dB.

When tested with two of the latest generation CPUs, the AMD Ryzen 7 9800X3D and Intel Core i5 14600K, combined with the high-end ASRock RX 7900 GRE Challenger graphics card, the Corsair RMx Series RM1000x easily delivered power even in Zero RPM mode to ensure minimal noise during use.

In more demanding tasks requiring increased power to handle heavy loads, the power supply easily meets the needs and maintains stability during extended use, even though the two CPU models can consume up to 181W in boost mode combined with the 350W of the graphics card.

However, the power supply's cooling fan still operates quietly with stable temperatures, without causing clock speed drops or power shutdowns even when the system's total power is high.

Summary

Overall, the Corsair RMx Series RM1000x, while an upgrade from the familiar power supply line, boasts significant improvements in voltage response thanks to the selection of high-quality components, support for adjustable fan speeds during operation, and a more flexible design of the included power cables.

Whether you're looking for a power supply to meet your current or long-term power needs, the Corsair RMx Series RM1000x is definitely a worthwhile investment for long-term use, thanks to its comprehensive suite of the latest technologies.