Corsair RM1000x ATX 3.1 PSU Review
Meet the new Corsair RM1000x
Corsair has a new and improved RM1000x for next-gen PCs
Corsair has updated its RMx series of power supplies, and at the top of that range is the new RM1000x. This PSU launches with a new look, new features, and a focus on silence. This isn’t the same old RMx series with an attached “new 2024 model” label.
With this new model, Corsair has shifted away from the 80 Plus ratings standard. As we have reported before, Corsair has abandoned the 80 Plus standard and has fully embraced the modernised PSU standard from Cybenetics. With these new standards come higher requirements and more avenues for testing/certification. The bar has been raised for expected PSU quality thanks to these new standards, and Corsair is embracing this change.
Quiet Power
The old 80 Plus power supply standard focused on efficiency and nothing else. With Cybenetics, stricter efficiency standards are enforced, and noise certifications are available. Cybenetics don’t just want PSUs to be more efficient; they also want PSUs to be quiet under load. Corsair has taken this on board, which is why their new RMx series PSUs are Cybenetics A rated on their noise tests. Note that our PSU’s packaging says A-, but this was old pre-release packaging for this unit. Corsair’s website lists an A rating for this unit.
Based on our time testing this PSU, we can say that it is near silent. We did not hear it at all during use. This PSU will be one of your system’s quietest components, assuming you aren’t using passively cooled hardware.
Why does this new Corsair RM1000x PSU exist?
Alongside its focus on noise levels, Corsair’s new RMx series adopts the latest power supply standards. Corsair’s new RM1000x is ATX 3.1 and PCIe 5.1 certified, and it features a 12V-2×6 power connector, allowing it to support the latest GPUs. Furthermore, this new unit has a 10-year warranty, with a MTBF (Mean Time Before Failure) of 100,000 hours.
Like other modern RM-series PSUs from Corsair, the new RM1000x has Type-4 Corsair cables. All of the cables are individually sleeved with black plastic wrap. This plastic is textured, giving the illusion that the cables use a braid-style material.
The Corsair RM1000x has an “override knob”
Included in the new RM1000x is an “override knob” that can control the PSU’s fan. Users can override this PSU’s default fan/noise profile to add more airflow to their PC case. This is a useful option for users who desire more case airflow. That said, I don’t see many PC builders using this feature.
Included cables
below is a list of the PSU cables included with the RM1000x. There is one 24-pin ATX cable, two EPS/CPU cables, one 12V-2×6 cable, four PCIe 6+2 cables, four SATA cables (with 3 SATA connectors each), and 3 PATA power cables (molex cables with two connectors each). Note that all of these cables have the same black sleeving.
