CORSAIR AX760, 760 Watt, 80+ Platinum Certified, Fully Modular Power Supply

I chose the Corsair AX760 PSU for my third build and find its' an excellent performer. There is a post in the 2-star rating about a "Coil Whine noise" with this unit. I wrote Corsair Tech Support about this issue, and here's what they wrote back: "The noise is not normal to the unit. It's very difficult to test units for audible noise in reality, because Corsair's test environment has a very clean power source. Many times, the noises come from the PFC filter circuitry or components used in the AC-DC conversion process, and these components all can react differently based on how clean the power source is. A unit that performs silently here in the lab may buzz or click in a house with older wiring, or using a failing battery-powered UPS, or any number of other things." I have not experienced this abnormal problem, but it makes sense that a highly efficient PSU might depend on having a clean power source coming from the wall plug. I highly recommend the AX760 and give it 5 stars. Corsair's tech response was within 24 hours and they fully answered my question.My 1 month update: I am so very pleased with this Corsair PSU. It's working great, there's no coil whine issue, and it's been a wonderful addition to my quiet-designed gaming pc. I'm using an Asus GTX 770 GPU and my system has all the clean and quiet power it needs.

I purchased this to drive an i7 5390k system, and it's doing a great job keeping my ASRock ATX DDR4 Motherboard X99 EXTREME4 with a Gigabyte GeForce GTX 980 Overclocked 4GB GDDR5 PCiE Video Card Graphics Cards GV-N980WF3OC-4GD running stable with a modest OC on both. The PSU came highly recommended from many reviews and comes in a smartly packaged presentation featuring bags for the PSU itself (not sure where people take them in their bags--maybe it's like the bags that Kate Spade purses come in?) as well as a very useful one for the various cables. Oh you'll need it, as you get a ton of cables! My biggest beef is with the cables and it's in how the modular plugs work on certain cables (such as either the 4 pin or 8 pin 12v cable for the motherboard), as the two halves don't always play nice to make it into a 8 pin cable. Yeah that's pretty minor!It's incredibly quiet, not enormously big, and simply works. I couldn't ask for more!

I didn't think I could love a power supply. They are often the piece many people put the least thought intoBut my current build was going to be something special and I'm so glad that I invested in a good power supply as the foundationIt's adaptable in many ways. Not just the cords but also the noise level. This thing has been whisper quiet and almost never needs to turn it's own fan on. This things a quiet reliable work horse under the hood.Also note: I never appreciated just how much the certifications would effect my electric bill until this power supply. Having mostly used bronze in the past, this is a platinum.I use my main computer over 12 hours a day, having switched to my new build with this computer compared to a bronze, my electric bill has gone down about $20 a month. Meaning this power supply paid for itself easily just in cost savings over time.I will never again build with less than a platinum rating, and I'm very glad to have purchased a Corsair.

Pros:- Very Silent, using the hybrid mode and the fan doesn't rotate but the PSU may become warm.With hybrid mode disabled and the fan running, it is still quiet.- No coil whine so far. But I still have to use it with a Video Card.- This PSU is small, so it fit a small case like the Cooler Master N200.- More than enough for your "standard" gaming rig. It can probably handle a SLI/CF config.Cons:- The mesh of the modular power cable 24 pins came defective. The black thing that holds it wasn't very tight and the mesh came out, but I managed to fix it myself.- The 24 pins cable isn't flat. Would be great to have a flat 24 pins cable, just like the HX750i. Corsair should let us buy it separately.- All the modular SATA power cables that come have the same distance between each plug. Having one with more would be great. It is a little short compared to the Cooler Master V550, so I had to use two modular SATA cables instead of just one.- A little pricey, but that's what you pay for 80 platinum.This is a really good PSU made by Seasonic. I was a little afraid that perhaps this PSU had some Coil Whine, this is from a previous experience with the Seasonic 520w S2II, but so far no coil whine.I switched the CM V550 to this one all because it had some ball bearing noise from the fan. This has none.I just didn't give it 5 stars, because the 24 pins cable came with some quality issues.Overall Recommended.