Summary: It works, provided clean power to all my components. However, this PSU makes a strange grinding sound, like a very loud mechanical hard drive when playing games. Apparently I'm not the only one to have this issue. Returned and bought an RM 750.
Summary: Purchased this TX750M unit at Fry's last week. Despite my best efforts I could not get the unit to work. Upon returning it I saw there was another one in the recently returned pile. I knew then the problem definitely wasn't on my end. The clerk then plugged the unit into a tester and sure enough it was as he said, "Dead as a doornail.
Summary: I purchased a Corsair HX750 Professional Series a few years ago, and I was so happy with it, I purchased 4 more. They've all worked perfectly (as a PSU that price should). But since then, Corsair has decided to sell out their reputation on lesser-tier products, like the "Enthusiast" series and the "Builder" series, a typical market domination approach.
Summary: Product was great until after 6 months it failed. I called Corsair and returned power supply, had to wait 3 weeks to receive new power supply. After 5 minutes the replacement (Same model power supply) failed as well. They need to get some quality control on their systems. I will be calling them for a third time to replace this model as well. Would not recommend corsair to anyone after this event.
Summary: I got the TX 850M PSU and the "M" tag is a complete joke. There are only 4 modular connections and the rest come in your standard mess of power cables. Other then that it's a good PSU and can handle my system really well. My only grip is that: The "M" tag is completely misleading. The images in Amazon don't preview the back of the PSU to show you this. The specifications don't mention the amount of modular connections.
Summary: First supply arrived DOA. Have bought two others that worked fine but there is no excuse for out of the box immediate failures. Five stars to Amazon that took the supply back and paid for return shipping.
Excerpt: Fin stabilitet, men desværre begyndte den at larme meget, meget højlydt efter nogle måneder. Mit gæt er defekte lejere eller lignende. Blev sendt til RMA, men min tillid til kvaliteten af Corsairs PSU'er har fået et lille hak.