Corsair CP-9020139-UK HX1000 1000 W 80+ Platinum Fully Modular Power Supply Unit - Black

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And the moment I start some workload on my GPU the loud CoilWhine or Buzzing or whatever I should call it is there again. But I found out two interesting things ....... Then took it a friend's house and he had an RM1000i so I put it on his system and the RTX 3090 did not buzz. Even one of my Plus 80 (below bronze) powersupply lasted 7 years without any issues, I only buy Seasonic by the way and Corsair. First of all sry for my bad english, but its not my first language, and secondly I am new to the Corsair Forum, because I would rly need some help and your opinions. The loud Buzzing (Coilwhine) under GPU load is way worse if I do test with higher FPS counts. As example, running Heaven with Ultra/High Settings on my full resolution (3880x1600),

And in that mode that loud buzzing is not there, or not noticable at all, its only that dramatic if I do Heaven or Timespy without GSync, and the FPS jump to like 300+ ! Now that 3- and 4-way SLI is on the outs, I can only assume it's just the miners that need so much wattage anymore. The AX1000's platform is the same one used in Seasonic's top-notch Seasonic Prime Titanium (and Platinum) models. It is built using high-quality components from companies like Vishay, Infineon, and Nexperia. In addition to its Japanese electrolytic caps, the secondary side also features a number of polymer capacitors from FPCAP and Chemi-Con.But something positive happened, too, and I have to tell you because I have no idea why. I changed the positioning of the pci cables in the psu a bit, and the "louder buzzing" is like halfed now. Electrolytics: Nippon Chemi-Con (105°C, W, KZE, KYB), Nippon Chemi-Con (4000-10,000h @ 105°C, KY), Rubycon (3-6000h @ 105°C, YXG), Nichicon (5000-6000h @ 105°C, HV) Polymers: FPCAP, Nippon Chemi-Con That said, the problem could be the cables. Could be the PCIe riser. Any kind of signal noise can impact switching frequencies. Best way to troubleshoot that is to try the original cables and to try the PC without the riser. In the beginning and at the end of the video you should be able to hear the coilwhine alone, which is the sound under idle conditions. The loud one (I say more like buzzing) is only on high FPS, but the moment I activate G-Sync on window mode too, it seems like I never get more then my monitors 144 (165) FPS.

Sure the better power supply on paper will give better results .. but they are way above the requirement of the PC hardware. Thanks for your comment/answer again and I will try out all the original cables over the Christmas period, because it will take some time to destroy my cable management and change it all. Still, expensive PSUs have better build quality so the PSUs themselves are going to last longer, and if they're designed properly like this one they can be very quiet. Cheap PSUs can be loud. After taking apart my PC several times and trying to find the noise problem, trying to put the GPU horizontal again, trying different riser cables, different PSU cables and many other things, There is a switch that lets you choose between one +12V rail or multiple +12V rails. Across the HXi family, this is achieved using Corsair Link software. However, since the HX models don't have a digital interface, a different approach had to be used.

Now it gets interesting, because I put in my new RM1000i the last hour and nothing changed. I do get the exact same problems. The not so loud whine (electrical sound) in idle. Any advice which one I should go for? The Corsair ones are obviously the cheapest of those, but are they any good? I had a Corsair mouse until recently and I completely hated it, so I have kind of a grudge against that company. My interest lies especially in which one is the most quiet and which one is the most reliable. Your electric bill is only going to change depending on a lot of factors. Air conditioning and home appliances are going to take up 90% of your electric bill, and because the percentage of that bill making up your computer is so small it can almost be ignored at times. The change is so small that it is not distinguishable between your other household appliances most likely. The video is made with the phone, so in reality the sound is like 2-3 times as loud as in the video, but hopefuly you all can still here it and get an understanding.