Corsair HX850W Professional Series - Gives You Professional ...
17 February 2012
Summary: The power supply is the true backbone to the computer, without it we wouldn't have any power to use the computer. When choosing a power supply you need to pick one with enough watt power to operate your computer, too little and it will be running far too hard and you will potentially harm your computer. That's why for me I like to buy one around 700 watts.
Pros: up to 850W, plenty of peace of mind, lots of connectors if you need it.
Summary: This semi-modular PSU will keep your rig tidy and with enough juice to power an sli/xfire setup with plenty of overhead for everything else. The build quality and packaging are excellent. The unit comes in a velour-like bag and the extra sata power and molex cables are bundled in a neat pouch. The unit's metal enclosure feels sturdy. So far I've detected no coil whine or other noise, which some reviewers have reported.
Summary: Update (3/27/2013): After the RMA, I received a new HX850 with a their "new" fan curve. Turns out that the fan doesn't spin at idle-load and spins up loudly then turns off. Spoke with Corsair technician supervisor today, and he admitted that it's a known issue and they're upgrading me for free to an AX850.
Summary: Perfect stable power draw, looks nice, high quality sturdy build. Everything you could ask for! The price is definitely worth it for this beast. It is powering a rig with a 2500k cpu, 2 gtx 470's in sli, two 4gb ddr3 1866 ram cards, 2 hdds, an ssd, a bd/re drive, a bunch of case fans, and all kinds of usb devices. There's not even a hiccup. My old PSU was the sparkle 1250w.
Summary: I paid a lot for this power supply when I ordered it. It had excellent reviews, and I've been using it for over 2 years now and it's still going strong. Very quiet, and I'm sure my system's stability has been a testament to this component's stability. Corsair makes some of the best power supplies, and I felt for a performance desktop, it was worth the added cost.
Summary: My computer used to shut off during power-hungry processes such as video games, video rendering, etc. When I replaced the PSU, everything ran perfectly, without overheating. I love how they ship so quickly too. I live in California, and they shipped from Nevada, almost immediately after I confirmed my transaction. I received the package within 13 hours (with two day shipping!).