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Corsair CMPSU-750TX 750-Watt TX Series 80 Plus Certified Power Supply compatible with Core i7 and Core i5

by Corsair
896 customer reviews

Available from these sellers.
750 Watt Size Chart
TX Series
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  • Box Contents - Corsair TX750W Power Supply; Cables included - ATX 24 pin & 20 pin compatible
  • Supports ATX12V v2.2 standard and older ATX12V 2.01 spec
  • Ultra-quiet 140mm double ball-bearing fan delivers excellent airflow
  • 80%+ energy efficiency at 20%, 50% and 100% load condition for less heat generation and lower energy bill
  • 99% Active Power Factor Correction provides clean and reliable power to your system
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Technical Details

Size: 750 Watt | Style: TX Series
  • Brand Name: Corsair
  • Model Number: CMPSU-750TX

Product Description

Size: 750 Watt | Style: TX Series

The Corsair 750-Watt TX Series is perfect, whether you are looking to upgrade your video cards, processor, or just need more power.The Corsair 750TX power supply is engineered using advanced technology and components typically needed for high end server systems, yet you can buy it here at Amazon at a great price!With design features such as a dedicated single +12V rail, the 750TX offers the maximum compatibility with the latest system components. The 750TX has Energy efficient circuitry capable of delivering greater than 80% efficiency ratings across 20%, 50%, and 100% load conditions. Why should you consider a new Power Supply?A Computer power supply is often overlooked when people look to upgrade their PC. A cheap and low wattage power supply can cause a number of headaches if you are planning on upgrading your PC. If your computer is not getting enough power, you can expect random system crashes. Upgrading your power supply ensures that your system will be stable and will allow you to upgrade in the future as well. With a large 140mm diameter temperature-controlled fan that is ultra quiet, reliability and stability are no longer worries for the gamer, overclocker, or enthusiast.80 Plus Certified Any power supply that is 80 Plus Certified means that it can Efficiently supply power to your computer and doesn’t waste much energy. When a power supply is not efficiently converting the energy from the wall socket, it turns the unused energy into heat. That’s important because Heat is never good for your computer and can shorten your computers life.What 80 Plus Certification means, is that this power supply converts more than 80% of the power from the wall socket into actual energy your computer can use, saving you on the electric bill and decreasing heat inside your PC.This Corsair 750w shows an efficiency of more than 85% when it’s under 100% load by your computer making it perfect for your next upgrade or new system build.

Product Details

Size: 750 Watt | Style: TX Series
  • Product Dimensions: 6.3 x 5.9 x 3.4 inches ; 6.8 pounds
  • Shipping Weight: 7.2 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B000X2677A
  • Item model number: CMPSU-750TX
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (896 customer reviews)
  • Amazon Best Sellers Rank:
  • Product Warranty: For warranty information about this product, please click here
  • Date first available at October 19, 2007

Customer Reviews

Most Helpful Customer Reviews

403 of 419 people found the following review helpful By Harvey Ramos on July 5, 2009
Style Name: TX SeriesSize: 650 Watt Verified Purchase
This is a great, rock solid power supply. This PSU is capable of handling almost anything that you can throw at it, except for some extremely exotic setups.

Most computers only consume around 100-150w, and even a high end computer might consume maybe 200w. That's why most OEM computer manufacturers put small 250-350w PSUs in their systems. If you look at online reviews of highly overclocked systems with multiple video cards (SLI/Crossfire) they consume at most about 500-600w. Anandtech (a very trusted hardware review site) in a comparison of the ATI Radeon HD 4890 and NVIDIA GeForce GTX 275 (google it) also did a roundup of other comparable video cards and some SLI/crossfire setups. Their review system was a Core i7 965 @ 3.2Ghz (non-overclocked), 6GB of RAM, and SSD drive, and X58 based motherboard. Idle power consumption ranged from 170-260w, and full load from 260-420w.

The point is you don't need a 1000w PSU even if you have a high-end system. The wattage race is long over. A good PSU from a good PSU manufacturer is all you need. For regular desktop systems, a good choice is Corsair's 400CX or Antec's EA380. If you need a bit more power for an overclocked system, or multiple video cards this PSU is a great choice. Also for consideration in this price/quality range are Antec's EA650, SeaSonic's S12 and M12 550w & 650w versions, and PC Power & Cooling's 650 & 750w versions along with Corasir's own 750w version of this same power supply.

This power supply is also 80 PLUS certified, which means that it maintains at least 80% efficiency across a range of power usage from 20% of it's capacity (~130w) all the way up to it's rated maximum. This is *very* good. Most off-brand PSUs only make about 70-75% efficiency.
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136 of 144 people found the following review helpful By snackelroy on May 21, 2009
Style Name: TX SeriesSize: 750 Watt Verified Purchase
This review probably won't speak to your uses for this item, but it will speak to the general bulletproofness of the Corsair. Sorry, I mean *BOMB*proof. I'll let the other 50 reviewers tell you about how this works in a computer, which I'm sure it excels at. I, on the other hand, needed at least 600 watts for a mobile DJ rig that was running off a gas generator, rolling around in 105 degree heat and nonstop dust storms. Please know, before we continue, that my conversion of the Corsair 1) voids the warranty and 2) is not entirely safe for the electrical newbie, so please don't go doing this unless you're comfortable handling live wires and have done your research on hacking ATX PSUs. I'll let you find that info on the internet and instead focus on the performance and reliability of the 750TX.

The environment this was in is knowing for destroying moving parts, devouring motors of all kinds, and generally ruining stuff in a hurry. It's the alkali flats you always see those car commercials filmed in the middle of nowhere, Nevada. Temps soar and the dust is so fine it gets into EVERYTHING. If you run a motor or any kind with a fan, the rule of thumb is to clean or replace the filter daily. It's hot and it's nasty.

The Corsair was literally buried in dust at times, baking in the sun, and it never stopped fanning itself (silently) or providing steady power. And we're talking hellishly dynamic loads here, too. Bass heavy music cranked to 11 will basically give you alternating zero to full loads. I blew up a lesser PSU doing this same thing before finding the Corsair ("melted, then popped" would be more accurate). This thing has gone for 20 hour stretches of this without a whimper. I blow fuses on the amps before this even gets warm.
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57 of 61 people found the following review helpful By Tiger VINE VOICE on March 30, 2012
Style Name: Enthusiast SeriesSize: 650 Watt Verified Purchase
Length: 8:57 Mins
I am extremely happy with this power supply. There are only two drawbacks (mentioned later). I love the power efficiency (80 Plus Bronze) so that it (1) doesn't waste energy, and (2) doesn't generate as much excess heat (which is where energy waste goes) so that (A) your case can run cooler with less heat contributed by the PSU, (B) faster with less heat (the enemy of computer speed), (C) quieter because both the PSU fan and case fans don't have to work as hard to exhaust heat.

It has very long cables to reach everywhere in my case. I especially like that they are long enough to let me run them with good cable management and don't have to be a spider web strung across the middle of my case, or risk banging into fans if not able to tie down to the sides. The cables are covered in a nice mesh material (common on premium cables). The wires are very stiff (explained in the video), which is a pro and a con, although mostly a pro. They seem very well constructed, but will take some bending to get things to daisy chain (drawback #1). But it is also nice that they hold their position so they don't flop around and get in the way. But might take more work to coax them into the position you want. The flip side of the long cables is that you will have excess cable, and seems like quite a bit (drawback #2). So make sure you have room in your case to nicely tuck bundles of them that you aren't using (see near end of video), otherwise they could get int he way of airflow. I'll take the length any day over having less to work with.

Although it is 650W, that is more about the maximum power it can crank out, but realistically you will end up using a lot less. My Kill-a-Watt meter says that I use 50.2W when on and idle, and spikes 90W during activity.
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