Corsair RM1000e (2023) Gen5 PSU Review


The Corsair RM1000e Gen5 or 2023 offers the highly desired ATX v3.0 and PCIe 5.0 compatibility, which many users seek to be future-proof. For the moment, only NVIDIA has adopted 12VHPWR connectors, but AMD will have to follow them at some point. If you ask me, the 12VHPWR connector, despite its problems at the start mostly due to bad adapter design, is the way to follow since it can provide lots of juice to the cards through a single cable, restricting cable clutter inside the chassis.

The super compact dimensions are an asset, especially from the moment they don’t affect noise output. The not restricting exterior design of the PSU’s casing and large perforations help in this. The overall performance is not that high, but still, it is not far away from the majority of more expensive offerings. With a price tag of 171 dollars, the RM1000e Gen5 unit is not as affordable as I expected, given that the similar capacity RMx Shift model costs 27 dollars more. Personally, I would pay the higher price to get the better performance, the longer warranty, and the side-mounted panel if I could utilize it with my chassis. Still, I know some users appreciate every dollar they can save. You should also keep in mind that the RM1000e achieves a higher average efficiency than the RM1000x Shift and is not far away from the average noise output. Still, in this price range, you can also find the Montech Titan Gold 1000, offering higher performance, and a longer warranty, losing only to noise output.

To check all alternative PSU offerings, read my Best ATX v3.0 PSUs article before investing in a new power supply. You help me a lot by using my affiliate links, which don’t increase the product’s price. I get a commission from Amazon every time you do it, which can make a difference for me, especially now that I am on my own, working exclusively for my media and not for someone else.





  • Decent performance
  • Good price
  • ATX v3.0 and PCIe 5.0 ready
  • Properly configured OCP at 12V and OPP
  • Silent operation
  • Efficient
  • Tight enough load regulation
  • Satisfactory ripple suppression
  • Longer than 17ms hold-up time
  • Accurate power ok signal
  • Low vampire power
  • Alternative Low Power Mode (ALPM) compatible
  • Fully modular
  • Enough connectors, including a 12VHPWR (600W)
  • Rifle bearing fan
  • Seven-year warranty
  • Average soldering quality
  • High OCP triggering points on the minor rails
  • Low PF readings
  • Mediocre transient response
  • High inrush currents
  • Not efficient 5VSB rail
  • Small distance between the peripheral connectors



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8 thoughts on “Corsair RM1000e (2023) Gen5 PSU Review

  1. I’ve noticed quite a few reviews of this PSU, both online and one person I know personally, which have reported really bad coil whine issues just by turning the PSU on. I’m wondering if there was a large bad batch that went out and the rest are fine or if this is a bigger problem. Regardless, I’m really glad to see a slightly more budget series from corsair to slip between their cxm and rmx series assuming this coil whine issue isn’t widespread.

    1. This is a new product, just got released, so you probably refer to the previous RMe. We didn’t notice any strange issues in our tests, and we have tested almost a dozen different RMe models.

  2. Hello Aris,
    The soldering it’s bad as it can be. Off centered and off axis SMD, cold joints and manual soldering for some parts. High Power parts with half the flux.
    You call this “Average soldering quality”? This thing it’s a fire hazard waiting to happen.
    BTW can you give an example of bad soldering in your reviews?

    1. Hi there! This unit is a fire-hazard? It passed hours of testing under the toughest possible condition without breaking or creating any issues.
      Where did you see cold joints? If a joint is cold, the unit wouldn’t work at the first place.

      Believe me this is average to my eyes. For me notably problems are mostly long component leads which can create shorts and when solder is missing, creating poor connections and increased resistance.

      This is bad soldering example:

      1. The manual soldering done on some SMD parts point me to this cold joints issue, if the QC misses one then here you go.
        Also too little flux for the FET’s could lead in time to a crack. Those parts get thermal cycle all day long.
        Remember the we don’t buy PSU’s for 1-2 years.

        Yeah the example is real bad, thanks for sharing.
        Keep up the good work man.

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