- Brand Name: Corsair
- Model Number: CMPSU-750AX
Corsair Professional Series AX 750 Watt ATX/EPS Modular 80 PLUS Gold (AX750)
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- 80PLUS Gold certified, delivering up to 90% energy efficiency at real world load conditions.
- A Seven year warranty and lifetime access to Corsair's legendary technical support and customer service.
- High-quality Japanese capacitors provide uncompromised performance and reliability.
- An ultra-quiet double ball-bearing fan delivers excellent airflow at an exceptionally low noise level by varying fan speed in response to temperature.
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Unprecedented Power Protection
The Corsair Professional Series Gold power supply pushes the state of the art for reliable delivery of clean power under imperfect conditions. If you require mission-critical stability or you simply want one of the best power supplies available, the Professional Series Gold is for you.
A Fully Modular Cabling System
All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it’s time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling – the cables stay in place and connect to your new fully-modular Corsair power supply.
With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month. It’s earned the 80 Plus Gold seal of approval, your guarantee that you’re making the right choice for smart, efficient power delivery.
From the Manufacturer
The Corsair AX750 power supply is one of the highest-quality mid-wattage power supplies for the enthusiast who wants uncompromising performance. With 80 Plus Gold certification, a fully modular cable set, and low noise levels, the AX750 has no rivals at its wattage.
What the Experts are Saying...
"Silence, performance, quality, and an attractive price make the AX750 very difficult to beat. This is easily one of the best power supplies on the market right now, and for that we're presenting Corsair with our Gold Editors' Choice award. You can get similar performance and quality, but the pricing is usually higher and unless you like waiting to see what the competition can bring to bear, this is a great high-end PSU." - AnandTech November 30, 2010
"The AX750 is the third Corsair AX power supply we have reviewed and it has reaffirmed our opinion that the Professional Series Gold power supplies are the finest on the market, bar none. The 750 model is finished to the same exacting standards as the AX850 and AX1200 and we love the understated design and simple aesthetic appeal. This PSU will look great in any system, regardless of lighting or internal structure." - KitGuru September 11, 2010
Corsair Professional Series - Specifications
|Efficiency||80+ Gold||80+ Gold||80+ Gold|
|Hybrid Silent Fan Control||Yes||Yes||No|
|+12V Rating||62 Amps||70 Amps||100.4 Amps|
|Continuous Power Output||750 Watts @ 50°C||850 Watts @ 50°C||1204 Watts @ 50°C|
|Warranty||7 Years||7 Years||7 Years|
|Size||150mm(W) x 86mm(H) x 160mm(L)||150mm(W) x 86mm(H) x 160mm(L)||150mm(W) x 86mm(H) x 200mm(L)||Power Supply Image|
Why choose a Corsair Professional Series AX power supply?
With 90% efficiency at 50% load, the Corsair Professional Series Gold power supply runs quieter, generates minimal excess heat, and saves you money every month. It's earned the 80 PLUS® Gold seal of approval, your guarantee that you're making the right choice for smart, efficient power delivery.
Fully Modular Cabling System
All cables detach from the power supply. During installation, this gives you the flexibility of using only the cables you need for a clean system build with optimal airflow. And, when it's time to replace or upgrade your power supply, it can be removed from your system without interfering with your cabling — the cables stay in place and connect to your new fully-modular Corsair power supply.
7 Year Warranty
Corsair strives to ensure the quality and reliability of our power supplies, which is why the Corsair Professional Series Gold power supplies are provided with a seven year limited warranty. They are also backed by Corsair's legendary customer service and technical support.
Connectors and Cable Length
|Connector Type||Quantity||Length (mm)||Length (inches)||Connectors per cable|
|ATX Power Cable||1||600mm||23.62"||1|
|EPS/ATX12V CPU Cable||2||600mm||23.62"||1|
|PCI-E Cable (6+2 pin)||2||600mm||23.62"||2|
Top Customer Reviews
Now, that said, do you need a power supply of this level? Not necessarily. There are many great options at lower costs that will meet the needs of your typical user. What you want are highly rated, reputable power supplies. On the lower end, you may consider something like the Antec Earthwatts series, which are rock-solid for the money.
But you're not reading this review because you want an Earthwatts; you are reading it because you're wondering, is it worth dishing out the cash on a Gold certified, modular PSU that comes packaged like it is a 200 year old bottle of scotch? The answer is yes, with one caveat: if you are trying to just put a computer together as cheaply as possible, then this PSU is not for you. As I stated earlier, there are reputable PSUs that you can find for much less.
So, with that out of the way, let's talk about this particular PSU and why it is worth the money if you demand nothing but the best and have the budget for it. This PSU will deliver one of *the* most consistent levels of power to your system that is available today. It will live up to all of its ratings, unlike many cheaper PSUs which often turn out to supply far less consistent power than they claim.Read more ›
Since then I have RMA'd it once to Corsair, thinking there was a problem with it. (the PSU had no problem, it was my RAM)
I had no complications with Corsair and their customer service is top notch.
I received the new PSU within 7 days, and it came brand new in an un-opened MFR box.
This PSU is a single rail, gold psu made by Seasonic.
I recommend this PSU to any of my friend that are making a $800+ computer.
I feel if you are putting that much into the system you need a reliable PSU that will always work!
The Corsair AX750 runs very cool, and I do not recall ever seeing the fan spin!
Less heat the PSU produces the cooler the ambient temperature in your case will be.
I use the AX750 to power my system:
Intel i7 2600k
Asus P8Z68-v PRO Mother Board
2 x 4gb Mushkin 2133 RAM
2 x 640gb WD black Sata 6 RAID 0
Samsung 470 SSD 64GB
LG BluRay Drive
Corsair H60 CPU cooler
4x 120mm fans
1x 140mm fan
Antec 300 case
I picked up a competitors 1200w power supply and returned it the next day because of terrible voltage droop. Most cheap power supplies have terrible voltage droop. I usually see 12v rails on cheap units drop somewhere between .75-1.5 volts at full load. For your average consumer it's ok, but those voltages are unacceptable for high stable overclocks.
The unit is powering:
Asus Crossfire IV
AMD 1090T / 8GB XMS RAM 1333Mhz
MSI Radeon Frozr II 6950
2x 200mm fans
1x 140mm fan
Hyper 212 plus
When I'm casually browsing the PSU fan does not spin. The fan starts going when I start playing games and even then the case fan is still significantly louder.
What sold me on the pricier unit was the fact that I was looking for a long term power supply and the 7 year warranty was reassuring. I typically use my computers for several years, so I feel justified in purchasing a solid unit that draws less energy due to higher efficiency and built with quality parts. It was also very important to have the modular cables to help reduce clutter.
It is true the wires are stiff but usually indicates thick gauge wire. The connectors are also tight fitting which is also something that I wouldn't classify as a negative attribute. The connections are solid once connected and hopefully you don't move out your peripherals too often.
The PSU is running fairly easily right. It's good to know that I have the option to expand the peripherals(drives, cards, RAM, Fans) and even an additional GPU without really pushing the PSU.
These are my first impressions and I'll update as time passes.
Most Recent Customer Reviews
Worked for about 2 years. Approximately 4 months ago my computer decided to not power on with the power button on the case after being shut down for only a short time. Read morePublished 19 months ago by J. Geib
Every corsair PS I have ever bought hums. VERY annoying. Returned 100% of them.Published 21 months ago by mizzouXC
bought 1 nine months ago...replaced faulty psu via RMA (warranty) successfully 6 months ago; psu fails again... Read morePublished on May 26, 2014 by ravi ramsingh
I love being able to add wires if I get a new HHD Hard drive, SSD hard drive , or GPU graphics card that requires 8 power ports. Read morePublished on February 10, 2014 by Sabastian78
Bought to go inside a 550D Obsidian. Installation was a breeze, and the PSU is nearly silent in that case.Published on February 3, 2014 by Nathaniel Bannister
Been using this for heavy gaming for 3 years, and it has never given me any trouble whatsoever. The cables it comes with are indeed modular, and they are all long enough to reach... Read morePublished on January 17, 2014 by Donut
is bullet proof. I have it running in my super tall Extended tower, it runs quite and powerful. the modular design of the cables makes this a builders dreamPublished on December 2, 2013 by sproket117