CORSAIR TX Series CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS BRONZE Certified Active PFC Compatible with Core i7 Power Supply & New 4th Gen CPU Certified Haswell Ready

Pros: I got this about 2 years ago and used it in 2 different rigs. Came in great condition, plenty of cords yet manageable, quiet (at least I never notice it), and has lots of power. One kind of random thing, but the packaging was really high quality.

Cons: none

Overall Review: Get this cuz it works good

Pros: Plug and play. Lots of connectors and dedicated power for your video cards. The plugs are labeled and have braided covering. The power rating is on the back of the PSU so with a glance you know how much power you have.

Cons: Not modular

Overall Review: I know it does not matter in most cases but I would be nice to have an arrow on the PSU telling which way is up.

Pros: This PSU worked out of the box. Not one single problem, i suppose the first two guys with DOA's just got a bad lot. Anyhow, I LOVE the cabling, it installs very clean. More than enough hook-ups for 90% of people out there. 650w will run a pretty decent load even with a lot of SLI setups. Definitely recommend this PSU.

Cons: none so far

Overall Review: 100,000 MTBF means that if you left this running till it failed if would run for approx. 11 years. Look at the certifications and primarily the high potential amperages; this thing could power a welder if it needed to. Very robust.

Pros: Stable voltage even under rather heavy load.

Cons: The 2x 4 ATX12v wires were about 3" to short for my CM690 case.

Overall Review: Corsair sure knows how to pack a box, it looked like you could drop the box from 10' and not hurt the psu inside.

Pros: Clean stable power, a completely SILENT fan (and it's located where it should be too - over the CPU not in the back - yuck!), all the cables that most users will ever need (nice touch that the PCI-E video power cables have a split design compatible with the older plus the newer high powered video cards - Cheers to Corsair!). The clean black design, nice case labels (if you like those kind of things - I do ;-) ), nifty cloth sack it comes in (my wife loved it, women always need places to put *stuff*, men too so no sexist remarks please), and all cables nicely pre-laced for you (Doing that stuff myself is a pain). My dual 8800 GTS SLI setup only uses 420W at full/max load and that's with some heavy CPU overclocking too (I use a Zalman ZM-MFC2 - excellent device, pretty as heck but be warned it isn't readable unless your face is directly in front of it). This power supply with its single 12V rail design will be PLENTY powerfull enough for your build, don't let the 650W worry you.

Cons: Multiple power connectors on one line may frustrate some users (although if they were all on different lines it would make hiding unused connectors much harder), for those with full towers with devices scattered about it could be an issue, for those with mid/mini cases it's a non issue. This was not a con for me - It actually makes my Lian-Li case power layout much cleaner looking - I liked this design.

Overall Review: OK, I intended to buy the 750W version of this power supply but accidently got this one instead (not paying close enough attention to the bundle deal, Newegg changed it from the 750W to the 650W and I didn't notice - ugh!). At first I was very sad because it wasn't the 750W version and I almost returned it, but I'm glad I didn't as this was the PERFECT size for my build with not all the extra cables the 750W has (which would have just been hidden anyway), if you don't really need all the cables the 750W comes with don't hesitate to consider the 650W model, the 52amp on the 12V rail is more than enough for any dual SLI build with power to spare.

Pros: This PSU exudes quality, from the cable sheathing to the packaging used to ship it, and even to the support from the company (Corsair) itself (see the Cons section). Has plenty of connectors and a single +12v rail capable of carrying 52 amps of current to your system! The color matched the case and the rest of the external system components. The price wasn't bad, either!

Cons: The power supply seemed to work fine right out of the box, until the system shut down on its own inexplicably. Suspecting an overheating issue, I checked the CPU and its retail heatsink and made sure they had good contact between them. A few troubleshooting calls to the motherboard manufacturer resulted in no resolution to the problem and they sent me the link to an online RMA request form. However, upon checking the hardware monitoring software in the BIOS, I noticed that the +5v rail reading was far below the specified tolerances of an ATX 2.2 PSU (it was reading +4.085v!!!), so I swapped it out for a known good PSU and found the +5v reading at +4.896v. Much better!! Also swapping PSUs resulted in no more random shutdown issues.

Overall Review: When I contacted Corsair's tech support line, I had maybe a 3-5 minute wait before I spoke with an actual technician (very reasonable wait time). When I explained the problem in detail (including the low +5v rail reading in the motherboard BIOS from the Corsair PSU) and how the other PSU being swapped into the system produced much better readings on the +5v rail in the BIOS and allowed the system to run without the shutdown problem, he promptly and courteously emailed me with a link to an online RMA request and instructions for filling it out properly. Because of the obvious quality of both the product and the support, I have no problem in letting them make it right nor with ordering another one of their PSUs. They have earned both my respect and my future business.

Pros: Runs efficiently cool, quiet, is very well made, and it delivers power cleanly for high current demand systems. One of the first things I watch when building a system is how tightly the PSU regulates voltage on the rails. The 3.3v, 5.0v, and 12.0v rails are all within 1.1% no matter what load my system is presenting. Scoping each rail's output reveals a flat line under all system demands, even through repeated bootup sequences. The cables offer little air circulation resistance and are very well protected in individual flexible, rugged, woven sleeves. I like the long cables as there is no problem reaching any part of the case with any of the cables. Unused cables easily tuck into an empty bay with the provided tie wraps. Having a single 12 volt 52 amp rail makes connection trouble free with no load balancing issues to deal with. This is a fine choice for a trouble-free installation.

Cons: Gotta say something here... Um... no welding cables provided? You could do some light duty welding with 52 amps a 12 volts.

Overall Review: One thing to consider as you are working on airflow throughout your system is that this power supply pumps cool air in from the back and exhausts it into the case. Obviously, this is the best way to keep the PS cool. To help keep dust out of the optics of my CD/DVD burner, I like to keep my case pressure neutral (intake pressure = exhaust pressure), so I ended up changing things around in my Lian-Li case (PC-60 Plus) to accommodate the Corsair power supply and all is well, even when overclocking. (E8400 running @ 3.6 GHz air cooled with stock voltage.)

Pros: -Excellent supply inside and out. -HardwareSecrets has great PSU reviews, showing breakdown of internal PSU components with clear explanation of what's really important. - Very stable and accurate voltage

Cons: Corsair PSU fans run very slowly and quietly - you can barely feel the warm exhaust air - so the PSU relies on very good existing case ventilation. If you expect the PSU fan to help ventilate the case, you might have trouble with overheating. Corsair PSUs do not contribute to case cooling (as most other PSUs do). Oddly enough, the PSU fan increases speed ONLY as power draw goes up. The PSU can hit shutdown temperature and the fan will never speed up. The box shows a graph with fan speed vs. power draw, making that clear. Put simply, if you're pulling at least 50% of the PSU's power capacity, OR your case is extremely well ventilated, you shouldn't have problems. In my older Antec case with 2 'silent' 120mm fans, one running at low RPM in front pulling in cool air over the HDDs and the other in back below the PSU exhausting heat, the PSU was roasting itself and all else around it. I swapped the rear 'silent' fan with a full-speed, full-time fan and all is well (but not as quiet).

Overall Review: Thermal problems after installing a new PSU are not exactly expected, so be aware. I thought my case was fairly well-ventilated, but the Corsair PSU proved otherwise. IMO, their PSU fans should respond to power draw AND temperature, but their designers obviously believe otherwise. The solution, if you buy a Corsair PSU, is to check CPU and other temperatures if possible and open the case 20 minutes or so after installing to be sure the PSU isn't getting too hot. I would keep a high-CFM fan handy so you can increase ventilation if needed. Other than the thermal issues, this PSU has been spot-on with voltages and regulation, so as long as potential issues are known, this is a great choice.