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Reviews for Corsair VX550W ATX12V & EPS12V Power SupplyMPN: CMPSU550VX 
By member:
computerpro55
- Feb 23, 2008
One of the best 550w power supplies availableStrengths: high quality components, 5 year warranty, long cables, single 12v rail, 80%+ efficiency Weakness: none apparent This is a great power supply, it has a 41A single 12v rail so it will provide clean, consistent power. It has a 120mm exhaust fan that is silent under all but most demanding conditions. If you put the psu under load for long periods, the fan ramps up to expel the heat and it is audible, but the sound is a low pitch and not distracting. 50% of readers found this review helpful. Did you find it helpful or unhelpful? Top
By member:
Godson
- Oct 20, 2007
Great power supplyStrengths: 550w Saving energy very efficient Weakness: NO modular cables I just got this power supply for my pc. Its great its uses 492 watts. Its also has Avg. Efficiency under Load: 82.2%. This is a great powers supply. Only downside is no modular cables but its still good. 50% of readers found this review helpful. Did you find it helpful or unhelpful? Top
By member:
Anonymous
- Mar 5, 2008
Ok, PSU!Strengths: Sleek looks, heavy unit, all cords are well insulted, will run all the latest video cards, good tech support Weakness: It doesn't keep cpu tower as cool as OEM did, would be nice if it were modular, makes drive chattering much louder After reading the reviews for Corsair power supplies, I could hardly wait to receive my VX 550w. The unit was priced right to deliver high performance to my new video card. Well, it worked fine and silent until day 15. Now the drive searching noise is 5 times louder. To the point, I replaced the vx550 with my stock Bestec. This of course resolved the noise issue. Why is day 15 so important, because Buy.com has a 15 day return policy. 44% of readers found this review helpful. Did you find it helpful or unhelpful? Top
Reply by member: Bluebumblebee
Apr 14, 2008 So let me get this straight. You replaced your (noisy) OEM PSU with this (quiet) PSU and when the hard drive stated making noise you put the noisy PSU back in? Isn't that like turning up the radio when your car starts making a noise. PSU don't make HDD's make more noise. You most likely can't hear the noise of the PSU. OR There has been a issue with these PSU's of a deflector hitting the fan. A little adjustment may fix the issue. But, there is always the 3 year warranty
By member:
Serj
- Apr 18, 2008
Great power supply for the price with a minor flawStrengths: very solid power with a high 12v rail, energy friendly 80+ efficiency, alot of cables, compatible with almost all motherboards, and a 5 year warranty!! Weakness: Not as quiet as my hx620, not modular (but this was advertised so i won't count it towards the rating) What can i say, i purchased one of these guys from an etailer, and while testing it outside of the case, i noticed a low buzzing noise. It turns out it was the fan making the noise and this model seems to be famous for this problem, a simple fan noise. I got 3 replacement and they all had the same noise. Besides that this is a great PSU, with great customer support system from corsair. They pretty much said they will replace my PSU until i am satisfied with the one i get at the end, but it just is too time consuming. I just left the PSU in my case, and with the fans and all, it is hard to hear the low buzzing noise unless you're right next to it. Besides that, the power supply functions just great, no problems whatsoever powering my system. In the end, it is a great power supply for the price/performace, it just isn't quiet like my hx620 but it is also almost half the price after rebates. Did you find it helpful or unhelpful? Top
By member:
johneverd
- Apr 5, 2008
Quality build, excellent choice on price/performance...Strengths: Rock solid performance, primary uses a Japanese capacitor, nice matte black finish, single 12v rail is rated 41A Weakness: Expensive when not on sale, but then all quality units are. Sadly, many people who purchase a power supply for their computer buy the cheapest one they can find. This can be a costly mistake. All of your other expensive computer parts count upon the power supply for smooth, reliable power. A poorly made unit can damage or destroy your other parts. This Cosair VX unit is a nice compromise between quality and price. Did you find it helpful or unhelpful? Top
By member:
neuromix
- Mar 9, 2008
Quiet Reliable PSU!Strengths: quiet, lengthy cables, # of connections, lifetime warranty Weakness: not modular At first I was weary of the Corsair brand, but after reading a few reviews, it seems everyone was spot on. The feature I was looking for in a PSU was how quiet it would be due to the position of where my computer would be in my room, this PSU was inaudible to me. The length of the connections were great, I was able to reach my components in my case with ease. PSU is solid! Highly recommend! Bought another for another build. Did you find it helpful or unhelpful? Top
By member:
aabukhari
- Mar 1, 2008
Fantastic PSUStrengths: Quiet, Efficient, Long cables. Weakness: Haven't found one, yet. This is a fantastic power supply that runs quiet and is very efficient. It can handle any load you throw at it without skipping a beat. It is very flexible due to its long cables and abundant connectors. I wouldn't hesitate to buy this for all of my future PC builds. Did you find it helpful or unhelpful? Top
By member:
muishkin
- Feb 29, 2008
Good power supplyStrengths: Quality build, nice packaging, relatively low noise. Weakness: Non-modular, very thick cables. Having coming in knowing that this was Corsair's value line of PSU's, I was pleasantly surprised at the quality of the unit and its packaging and accessories. Other than having to bend the thick cables around a little to avoid running them into my case fans, the installation was pretty much a snap. The power supply is energy efficient and relatively quiet compared to the other fans in my case. This is not a Seasonic, but I think it's really every bit as good as one. Did you find it helpful or unhelpful? Top
By member:
computerpro55
- Feb 23, 2008
One of the best 550w power supplies availableStrengths: high quality components, 5 year warranty, long cables, single 12v rail, 80%+ efficiency Weakness: none apparent This is a great power supply, it has a 41A single 12v rail so it will provide clean, consistent power. It has a 120mm exhaust fan that is silent under all but most demanding conditions. If you put the psu under load for long periods, the fan ramps up to expel the heat and it is audible, but the sound is a low pitch and not distracting. Did you find it helpful or unhelpful? Top
By member:
tgenius
- Feb 22, 2008
Great Power Supply!Strengths: This power supply works wonders! It is strong enough to support my Q6600 OC'ed with dual SLI'ed 8600GTS cards Weakness: My only weakness is that it is not modular. I must say that this power supply meets my needs; A quiet,strong power supply that doesn't break down and works exactly as described. This thing is a workhorse. Having dual 6pin PCIe for SLIing is also a great advantage. This power supply is highly recommended! Did you find it helpful or unhelpful? Top
By member:
conehead433
- Jan 13, 2008
Corsair VX 550 Power SupplyStrengths: Well built, >80% Efficiency, Active PFC, Long Cabling, Very Quiet, Corsair 5 Year Warranty Weakness: None This power supply has a single +12volt rail with 41A so you don't have to worry about under powering one of the new high end graphics cards. It doesn't have modular cables, but the cables are sleeved and long enough for newer cases that have the power supply mount on the bottom of the case. The 120mm fan runs quiet so this is a good choice for a near silent PC. Did you find it helpful or unhelpful? Top
By member:
stockshowgypsy
- Dec 24, 2007
VX 550W Power SupplyStrengths: Weight, build quality, multiple connectors, very long cables, 41A on one rail Weakness: not modular-more an observation than a weakness This psu works well in bottom mounted psu cases where long cables are needed. There are plenty of cables for future upgrades. Sleeving is nice. PSU is very efficient and power ratings are not inflated. Over 80% efficiency with one 41A rail. I am very impressed with this psu and already bought another. Did you find it helpful or unhelpful? Top
By member:
tc17
- Dec 5, 2007
Quality Power SupplyStrengths: Quiet and powerful with 41amps on the 12v rail. Weakness: None This is a high quality power supply. There is a very detailed online review of this power here (not sure if pricegrabber allows me to post a link here or not): Did you find it helpful or unhelpful? Top
bestcovery.com - Aug 22, 2009
Best Value Power Supply
Bestcovery experts have rated the Corsair CMPSU-550VX 550-Watt VX Series 80 Plus Certified Power Supply as a best pick for the Best Value Power Supply. Bestcovery's experts recommend the best products and services for a particular need based on extensive research and evaluations. Click below to see Bestcovery's full review of this product. Top
testseek.com - Nov 4, 2008
Corsair VX550W CMPSU-550VX 550W
Testseek.com has collected 7 expert reviews for Corsair VX550W CMPSU-550VX 550W and the average expert rating is 87 of 100. The average score reflects the expert community’s view on this product. Click below and use Testseek.com to see all ratings, product awards and conclusions. Top 
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This is NOT Your Aunt Milly's Value-Line PSU
Strengths: 1) High Efficiency (up to 85%); 2) 41A on a Single, Stable 12V Rail; 3) Quality Japanese Capacitors; 4) Sleeved Cables
Weakness: None.
Others have done a thorough job of detailing the quality features of this PSU,
so anything I could add in that sense might seem redundant.
.
What I WILL tell you is this:
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I've owned Corsair's VX550W PSU for some six-months. It has faithfully powered
the following system without so much as a hiccup:
.
MSI K9A2 Platinum Motherboard; AMD 5000+ Black Edition CPU (overclocked);
Dual Radeon HD3870 Vid Cards (Crossfire Configuration); Maxtor 15K Atlas II HD;
Two (2) WD6400AAKS HDs (recently added to replace two older internal drives);
Pioneer DVR-115DBK CD/DVD Burner; and Seven (7) 120mm Fans controlled by
a Sunbeam Rheobus Extreme. The VX550? Rock. Solid. Stable.
50% of readers found this review helpful. Did you find it helpful or unhelpful?