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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
4.3 out of 5 stars  See all reviews (585 customer reviews)

Price: $149.88 & FREE Shipping. Details
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Size: 750 Watt
550 Watt
650 Watt
750 Watt
850 Watt
Style: TX Series
Modular Series
Enthusiast Series
TX Series
  • 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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There is a newer model of this item:
Corsair Enthusiast Series TX 750 Watt ATX/EPS  80 PLUS Bronze (TX750) Corsair Enthusiast Series TX 750 Watt ATX/EPS 80 PLUS Bronze (TX750) 4.3 out of 5 stars (585)
$89.99
In Stock.

Frequently Bought Together

Corsair CMPSU-750TX 750-Watt TX Series 80 Plus Certified Power Supply compatible with   Core i7 and Core i5 + Western Digital WD1002FAEX Caviar Black 1 TB SATA III 7200 RPM 64 MB Cache Internal Desktop 3.5" Hard Drive + Intel Core i5-3570K Quad-Core Processor 3.4 GHz 4 Core  LGA 1155 - BX80637I53570K
Price for all three: $455.17

Buy the selected items together


Technical Details

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

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 (View shipping rates and policies)
  • Shipping: This item is also available for shipping to select countries outside the U.S.
  • ASIN: B000X2677A
  • Item model number: CMPSU-750TX
  • Average Customer Review: 4.3 out of 5 stars  See all reviews (585 customer reviews)
  • Date first available at Amazon.com: October 19, 2007

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.

Customer Reviews

So far is working great no problems at all. Jared Hammonds  |  96 reviewers made a similar statement
All of the cables have nice black wire sleeves on them that make a much cleaner looking install. Wall Stickz  |  95 reviewers made a similar statement
Plenty cord length for my tower of a case to hide the cables behind the mother board too. Terrence A. Mckelvey  |  48 reviewers made a similar statement
Most Helpful Customer Reviews
356 of 366 people found the following review helpful
5.0 out of 5 stars Rock Solid Power Supply July 5, 2009
Style Name:TX Series|Size Name:650 Watt
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. This doesn't just make a difference in your electric bill (not much, but every bit helps), but it also means the PSU runs cooler since less energy loss during conversion from AC to DC. Generally speaking the 80 PLUS certified PSUs use better quality components to achieve the higher efficiency which means they are less prone to failure than the other cheaper brands.

In addition to having quality components, it also looks very good in the case. A very dark grey matte finish accented by yellow and black markings. The cables are long enough to reach pretty much anywhere. This is in my Antec 1200 full-tower case, which has the PSU at the bottom. The 8-pin motherboard power connector has plenty of room to reach the top of the motherboard. However, I had to run the cable the "normal" way over the video card and past the CPU fan since it was not long enough to feed behind the motherboard tray as I was hoping. Then there are 2 cables with 4 SATA power plugs on each, 2 cables with 6-pin PCI-e video card cables (each having an optional 2-pin attached for those video cards that require 8-pin power), and 2 cables with 4 regular molex plugs each.
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109 of 114 people found the following review helpful
Style Name:TX Series| Size Name:750 Watt|Amazon 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. It's actually never gotten warm, other than being in the sun, which is also handled without a problem. Using indoors in regular temps is a walk in the park for it, so I've also converted it for use in home theater without an issue. It's provided enough power to blow fuses in the amps I'm using, which means it's peaked at around 1 kilowatt of power. Let me repeat that - it has delivered A FULL KILOWATT OF POWER, albeit briefly, and stayed in one piece. That's insane!!

Think of this like extreme conditions testing for something you'll never use in those conditions, like when they test helmets by smashing them with battering rams. Normal computer users out there will *not* have a reliability issue with this item, I promise. I can't imagine what the high level Corsairs could do - you could probably power a small town with them.
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25 of 27 people found the following review helpful
Style Name:Enthusiast Series| Size Name:650 Watt|Amazon Verified Purchase
Length: 8:58 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. But the point is, don't worry if you think it is literally going to be pulling 650W all the time because it is rated for up to 650W. Of course it really depends on the draw from your system. My i7-2600K with Intel DZ68BC motherboard (HD Graphics 3000), SSD, HDD, and 2 optical drives only seem to actually draw 50-100W according to the meter. A high end video card will probably be your biggest draw if you have one. So check online power calculators so you know how big of a supply to buy. I was going to get a 400W, but ended up getting 650W to be safe, because being 80 Plus Bronze, it will be more efficient and isn't actually using 150W more.
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Most Recent Customer Reviews
1.0 out of 5 stars It didn't work!
From the moment I took it out of the box I tried to test it, but it never turn on!

I don't recommend this to anyone.
Published 20 hours ago by Luis Borge
5.0 out of 5 stars A Good Little Power Supply
Just what I needed when it came to a power supply. Energy efficient as well as capable in handling plenty of hard drives/gpus, etc.
Published 1 day ago by Joshua F.
5.0 out of 5 stars Corsair TX650M
Second rig using corsair power supply, and don't disappoint me.
Runs good using intel 3770k, G.skill memory ram, AMD 7950, GIGABYTE Z77X-UD3H. Read more
Published 1 day ago by Roel Lzn
5.0 out of 5 stars AWESOME
Run's my system flawlessly, with more than enough power to spare. Once again Corsair more than proves their quality. Read more
Published 3 days ago by WUB WUB
5.0 out of 5 stars Sweet PSU
If you want quality, this is the PSU to get. I have built pc's over the years and always went cheap when it came to PSU's. Read more
Published 8 days ago by Philip
5.0 out of 5 stars Semi modular
I still have a minor wiring octopus but this lives up to the name. Its able to power my rig: itx, water cooler, gtx 680, and 4 drives without an issue.
Published 10 days ago by Hokis
1.0 out of 5 stars Died in just two days
I ordered all components and peripherals to build a desktop pc from Amazon, including Corsair power supply. Read more
Published 12 days ago by joe
5.0 out of 5 stars Accurate Power, very quiet
very nice semi-modular psu. The only wired connectors are the atx and cpu power connectors and this results in very neat case wiring. highly recommended.
Published 12 days ago by Dave
4.0 out of 5 stars My psu buzzes
Great psu i always use corsair, but unfortunately this psu buzzes. I guess it comes down to luck of the draw i guess. BUZZ BUZZ BUUUUUUZZZZZZ!
Published 12 days ago by Mr Consumer
3.0 out of 5 stars Very loud!
This is a okay power supply for the price but the big problem is it is very very loud about 70% of the time. IMPOSSIBLE to record videos with this thing in the background.
Published 14 days ago by Jacob
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