Corsair RMX Series, RM850x, 850 Watt, 80+ Gold Certified, Fully Modular Power Supply (Low Noise, Zero RPM Fan Mode, 105°C Capacitors, Fully Modular Cables, Compact Size) Black

Its a Corsair PSU, nuff said. It powers my i5 8600k, water cooled & slightly overclocked with a GTX1070Ti overclocked. I have not had the fans turn itself on during operation... either that, or its too quiet for me to even realize it is on.

The Corsair RMX series is very good for people that are serious about overclocking and there are lots of tests that prove it. I, however, am a lighter user and just care that the power supply performs reliably and the RM650x has not let me down. Another major factor for my purchase was the 10 year warranty that came with it, giving me peace of mind for my current PC build and any upgrades/rebuilds I end up doing for the next decade. Furthermore the 80+ Gold certification is a great thing to see. There are cheaper power supplies but with the features and reliability that the RM650x offers I say its worth the investment.

I am returning it.

So far so good had A evga bronze 600 watt it killed my MB if ur not overclocking bronze is fine

Fully modular is the way to go. Only used the cables i needed for my build. This thing is silent as heck as well. Corsair drivers once again with this PS.

i like it, but the cables are a little too stiff and unclear on where to put them in the psu, but once you figure it out it’s worth it!

The only downside is that CableMod cables look much better than the stock ones that come with the PSU. But that pretty much goes for any PSU I can think of on the market. And these cables look great if youre not looking to upgrade to CableMod Cables.

First, I will say that this power supply solved my issue of an underpowered video card. The modular connections are also nice. It comes with more than what you will need. Unfortunately, it did not come with the power connector that goes to my DVD drive, so that was disappointing, but I dont expect them to be able to cover every single configuration out there. This power supply boasts a fan system that doesnt run unless it really needs to. So, when I first powered up my system with the new power supply installed, I was instantly impressed on how quiet my PC was. However, as soon as you do anything that draws more than normal current (video game, graphic design, etc.), the fan spins up. I have worked with computers for over 30 years, most of that as an IT professional and I have NEVER heard a power supply as loud as this. (SEE UPDATE BELOW) So one has to question WHY is it so loud? I should have listened to the reviews about the noise. I figured it cant really be that bad. It can...and it is. Other than that, it seems to work great. Unfortunately, I always have this uneasy feeling that my PC is overheating because thats the only time you usually hear noise like this. Yes, because of this power supply, I live in a constant state of panic. Luckily, my headphones block a lot of the noise but they shouldnt have to. 12/19/21 edit - I recently changed my hard drive to an SSD. When I installed the SSD, I removed modifications I made to vent heat from the video card. After this change, the power supply has been running quietly with only a bit of a whirring noise when I am using heavy graphics. So, I am revoking my previous 3 stars and adding another star because it seems with the right PC config, the power supply operates at a reasonable noise level - even at a superior noise level when not doing heavy graphics.

Whenever I wiggled the AC cord the power supply would shut down. Traced it down to a weak internal space connector. The AC movement was moving the back plate, which in turn was wiggling the internal connectors. Talk about poor quality.

works perfect!