Corsair RM850e (2023) Fully Modular Low-Noise Power Supply - ATX 3.1 & PCIe 5.1 Compliant - 105°C-Rated Capacitors - 80 Plus Gold Efficiency - Modern Standby Support - Black

This power supply has been installed and running for about 5 weeks now. It is being used with an ASUS Tuff Gaming Z890 Pro plus MoBo with an Intel Core Ultra 9 285K CPU, a MSI GeForce GTX 1600 Super GPU in a Lian Li Lancool 217 Inf case. It is quiet, cool and provides plenty of power for this rig.

The Corsair RM850e (2023) Fully Modular Low-Noise Power Supply is an outstanding choice for anyone looking to build or upgrade a high-performance PC. With its 850-watt capacity, this power supply perfectly balances power efficiency and performance, ensuring that even the most demanding systems run smoothly. The fully modular design allows for easy cable management, helping to create a clean and organized build while optimizing airflow within the case. One of the standout features of the RM850e is its low-noise operation. Equipped with high-quality components, including a specially designed fan that only spins when needed, this power supply ensures minimal noise, making it great for quiet computing environments. Additionally, its 80 PLUS Gold certification guarantees impressive efficiency, reducing energy consumption and keeping electricity bills in check. Overall, the Corsair RM850e is a reliable, efficient, and quiet power supply that is well-suited for gamers and professionals alike, deserving of high praise for its performance and build quality. I’ve been using this in my rig, and it powers everything consistently and quickly. After a few years of use, I haven’t encountered any issues at all.

The power supply went bad on my iBuypower PC and I asked Rufus what a good replacement would be and he recommended this power supply. The only negatives I see in other people's comments were that the cables feel cheap, but I disagree, they do feel thinner than the permanently mounted ones that you see, but they're made from a material that is more flexible then cheap hard plastic. I had spare length on every cable as well. My PC has the following specs: • Processor: Intel Core i7-14700F • Graphics Card: NVIDIA GeForce RTX 5060 (8GB GDDR6) • Memory: 32GB DDR5 RGB RAM (5200MHz) • Storage: 1TB M.2 NVMe Solid State Drive • Motherboard: B760 WiFi The power supply connected perfectly and powered right up. I couldn't be happier with this and would recommend it!

Solid PSU. It has worked great for the past year and a half. I have experienced no Power Supply issues in my build. It should fit any ATX case. The modular function makes it simple to use. Use the cables you need, and don’t use the cables you don’t need.

This power supply works great so far! The modular design, flexible cables and updated GPU power connection makes this a no brainer for those loooking to upgrade. Only time will tell when it comes to durability, but if this PSU has the build quality of my last Corsair PSU, I'm sure I wont be dissapointed.

I generally don't leave a review when I buy a product because doing so prematurely wouldn't be objective. I've had this power supply running for 18 months, working 12 to 16 hours a day. I do video editing, up to 4K quality, in programs like Adobe Premiere and DaVinci Resolve, as well as artificial intelligence, After Effects, and photo retouching. I haven't had any problems. There have been power outages, and I've used it almost to its limit without any issues. In the future, when I upgrade my equipment, I'll get a higher-capacity power supply from the same brand. I recommend it.

I picked up the Corsair RM1000e (2023) for my build, and it’s been rock‑solid so far. The fully modular design makes cable management a breeze, and I really appreciate that it’s ATX 3.1 and PCIe 5.1 compliant, so it’s future‑proof for next‑gen GPUs. It runs quietly even under heavy load, and the 80+ Gold efficiency rating gives me peace of mind about power stability. The only downside is that it’s a bit overkill if you don’t need 1000W, but for high‑end rigs it feels like a reliable investment.

when my old noname psu started to make trouble, i did some research, mostly at cultist's psu tiers list and have chosen this psu - tier a, available and most reasonable price, (750w, atx 3.0 & pcie 5.0 for future proof for some planned midrange rtx 5000 gpu) until this psu arrived i used some replacement psu (tier f) from computer lab guy . replacement psu was actually new one with box. so essentially i have experienced using 2 new out of the box psu recently. i write all this to talk about coil whine. f tier replacement cpu started quiet and after 1 hour loud coil whine began. i had just turn off pc at night. i didn't really care because i knew it was a temporary one. interestingly, after 1 week of coil whine - it mostly disappeared and tier f psu worked almost silently. after this cpu arrived - it had similar coil whine pattern: start silent, then some period of coil whine, than silent. probably because it's tier a - coil whine period was much shorter - 2-3 days. so people complaining about coil whine probably should give a psu some chance before rma. except that, psu is just working (now it's 1 week since installing). my general load is way below 750w, probably less than 20% of it, so psu fan is just idle not spinning - best outcome for silence.