RM850x Fully Modular Low-Noise ATX Power Supply – ATX 3.1 Compliant – PCIe 5.1 Support – Cybenetics Gold Efficiency – Native 12V-2x6 Connector – Black

For as long as I've been building my own computers - more than twenty-five years now - I've used Corsair power supplies. I don't necessarily think they are better than any other brand, but they've never let me down, despite all my computers generally running 24/7 in dusty, sometimes humid, sometimes 90F environments. I purchased this not because my old Corsair supply failed, but because I was installing a 5070Ti and wanted higher output as a result - the 650W would have barely been suitable. Swapping supplies was dead simple; the old one slotted in place of my old RM650x, and all I needed to do is replace the old power cable from the RX470 with the newer 12V-2x6pin. I have all Cablemod Sleeved cables and debated replacing the the new 12-pin connector with a sleeved variant, but it's so flexible and clean looking I decided the Corsair one was just fine. I've been running for about three months now without any issue. Obviously not much time on a PSU but I doubt I'll have problems. As an aside, this one has a variable fan speed knob. So far as I can tell, if you leave it off it will just run in normal, automatic mode, whereas if you use the knob it will instead always run at a certain speed. I think, I'm not totally clear on it. I just keep the knob off - my system is already very quiet and I don't think I've ever heard the PSU fan turn on even with my old supply, much less this newer one. As my mobo doesn't support PCIe 5.1, I can't comment on that part of the component. I would definitely recommend this RM850x, and would recommend Corsair in general, so far as PSUs are concerned. They seem very solid and well-made, and I've never been disappointed by them in the past.

Excelente producto, por un error en Bios entro en modo proteccion, investigue y resolvi ese error, la fuente funciona bien y de todo lo aprendido me doy cuenta que es un producto premium, la recomiendo.

Upgraded from my 650w as I got a 5080 and needed more wattage. Excellent quality from the RMx line, runs quiet and have had zero issues with my previous 650w in the 6 years I had it - which is why I went for the same RMx line for this upgrade. My only quip is that the new cables no longer come with the cleaner looking netted wire wrapping. The wires are now unwrapped but textured to mimic the old net wrapping.

If you’re building a high-end rig and eyeing a power-hungry GPU like the RTX 5080, the Corsair RM850x has your back. I paired it with my RTX 5080 build and it runs buttery smooth—zero stability issues, zero noise drama. Pros: • Handles RTX 5080 Without Breaking a Sweat: Delivers clean, consistent power under load. • Fully Modular Design: Only use the cables you need—clean, simple, and airflow-friendly. • Whisper Quiet: The fan barely runs, and when it does, it’s silent. • 80+ Gold Certified: Efficient and cool, even during long gaming sessions. • Top-Notch Build Quality: Premium components and a 10-year warranty for peace of mind. Cons: • Cables Are a Bit Stiff: Cable management takes some effort, especially with the 24-pin. • Slightly Pricey: But you’re paying for reliability and long-term performance. In short, the RM850x is a future-proof beast. If you’re throwing in a next-gen GPU like the RTX 5080, this PSU is more than ready to carry the load.

Quite a fine unit. Heatsinks!! Massive passive cooling. “Manual fan over-ride” ! Extra cool. Extra-extra large capacitors and transformer, etc. Excellent cables!! Already, no kinks. Carefully packaged. Discrete ‘Combs’ keep the individually sleeved wires very tidy. Easy to blow-out any dust. Forever.