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Pros: - Plenty of power for my PC rig, which has several SSDs, 7200 RPM drives, a GTX Titan, i7 5960X, and 64 GB RAM.
- Modular enough to keep the inside of my case organized and clutter-free.
- Quiet enough that I don't notice it under normal working circumstances.
Cons: - None so far
Overall Review: - Lots of bad reviews here...not sure if Corsair sent out a bad batch, or the earlier year revisions were problematic? I have the 2017 revision and it's been fine.
Pros: I tested the CORSAIR CX-M series CX750M, 750W, 80 PLUS BRONZE, Intel Haswell Ready ATX12V & EPS12V semi-modular power supply.
Here are the vital specs:
+ Form Factor: ATX12V / EPS12V
+ 750 Watt Maximum Output
+ Active Power Factor Correction
+ Semi-Modular Power Cables
+ Single Rail +12VDC Design
+ 80PLUS “Bronze” Certified
+ Efficiency: 85%
+ Outputs: +3.3V@25A, +5V@25A, +12V@62A, -12V@0.8A, +5VSB@3A
+ MTBF: 100,000 hours
+ Warranty: 5 Years
Lets go over some of the more important specs: The ATX/EPS12V is the form factor or type of power supply (PS). This defines the type of system case it will physically fit into.
The 750 Watt rating is the maximum power output, including all of the outputs summed together. I try to avoid power supplies with dual 12VDC rails with ratings of less than 650 Watts. The reason is they generally don’t have enough current on either 12V rail to properly drive even a single mid-range graphics card. Look to a 750W, or larger single-rail unit like this PS for: dual graphics applications, low-end workstations, or for moderate gaming use.
Active Power Factor (A-PFC) correction helps to keep your utility company happy and to reduce your annual electric costs. The ideal PF is a ratio of 1.0. Anything below that is considered inductive and anything above is appearing capacitive to the utility company’s equipment. A power supply that maintains the desired PF ratio of 1.0 appears to be a resistive load for all intents and purposes to the utility company. Power supplies rated more than 75 Watts have to include PFC to be sold in Europe. Most power supply manufacturers now include PFC as a standard feature, so they can sell into any worldwide market.
This PS has semi-modular output cables. This means the ATX motherboard cables are not detachable, while the: graphics, SATA and Molex DC output power cables are all detachable. Two of each detachable cable type were included with the PS. The motherboard cables had webbing, whereas the DC output cables did not. Modular PS normally provide for a neater cable layout.
80PLUS, White, Bronze, Silver, Gold, Platinum, and Titanium ratings? This is all part of a trade-marked 80PLUS voluntary industry standard created by Ecos Consulting and the EPRI in 2004, with pressure from the EPA and other Eco organizations. It refers to power supplies that have an 80% efficiency rating or higher. The white, bronze, silver, gold, Etc, was created by several large PS resellers to act as a buyers guide for consumers and IT-people when purchasing computer/server PS. An 85% efficient PS wastes less than 15% of the energy it consumes as waste heat. Note the bronze, silver, gold, Etc, has nothing to do with the quality or construction of a PS. A gold PS can use poor quality parts and have bad solder joints, or be made using a cheap PCB material, as long has it holds together long enough to pass the gold efficiency industry test standards.
White power supplies just meet the minimum 80PLUS efficiency standard. Bronze units are generally 82-85% efficient, silver 85-88% Eff, gold 89 to 92% Eff. Platinum are in the 90-94% efficiency range. Titanium supplies are always more than 90% efficient and are designed for data center servers and are seldom seen in consumer grade equipment. Keep in mind these are just approximate efficiency ratings for each color range. The actual efficiency can vary based on the input voltage and the output loading. This power supply is rated 85% efficient, which is excellent for a bronze PS.
This Corsair PS is notable for its 5-year warranty in this price/power range. This is a rare find on a budget power supply. This generally shows the manufacturer has a lot of confidence in the quality of their product.
I also like the larger 140mm fan and the black wire finger guard mounted over it. Stamped finger guards used on lower quality PS tend to restrict airflow through the fan and can cause more fan noise, due to increased airflow turbulence.
Cons: All of the modular DC output cables included with this PS were black colored flat cables. Given the modest cost of this PS, this was probably one of the cost cutting features made to hold the unit’s cost down. Personally I prefer to spend a little more and get a gold PS with color-coded, web covered, DC output cables. I am also not a big fan of modular PS. The additional connection points needed where the DC output cables plug into the PS are another possible point of failure. They also create more voltage drop. Sorry but soldered output cables are more reliable in my experience as a system builder and suffer less voltage drop.
While this is not a con, I would like to see PS manufacturers list whether their SATA power plugs have the keys orientated left or right handed. This unit had LH keys which means its better suited to a bottom mount tower case. A PS with RH power keys works best when located in a top mount tower case. In the latter situation the wires dangle down from the top, so you want the SATA keys to be on the near side, to easily align with the optical drives and hard drives. Otherwise the builder is faced with a twisted wiring mess of cables, which is the antipathy of a neat build. Rounded output wires are also more flexible and easier to install.
I always look at the reviews posted on NewEgg before I purchase a new product. This PS had 430 reviews when I looked it up, which means its been around for awhile, with a lot of units sold. It had an overall 3-egg rating. After reading reviews posted over the past six months though, I’m concerned about the early and high failure rates reviewers are experiencing with the current production. I would only use this PS in a budget system where the end-user is trying to keep the overall system cost down and wants a modular PS. I would also keep in mind that people who normally would not bother to review a product, will be more motivated when they have a problem with it. So this can quickly skew the overall review ratings in a negative direction. In my personal experience of building PCs since the late eighties; Corsair generally has very high quality, reliable PS. The 5-year warranty does offer potential buyers some added purchase protection.
Overall Review: I will let you all in on a big secret, the warranty period is generally the key to the build quality of any given power supply. Price, eh not so much. Avoid PS with one-year or less warranties, they are mostly junk. The length of the warranty is the best guide to the seller’s confidence in the quality of their product. There are always exceptions to any rule. Some shady manufacturers will post a longer warranty, but when you read the fine print you find that you pay the freight both ways over-seas and the labor cost to repair the unit under warranty, or you get a refurbished replacement, so buyer beware.
While this PS should fit most modern ATX tower cases. This power supply exceeds the dimensions of the original ATX form factor to accommodate the larger 140mm cooling fan. This PS may not fit some older, or smaller ATX cases. Before purchasing make sure the case you intend to use can handle a PS that protrudes 6.5 inches into the case. I would also allow for an extra two inches of depth for the output cables, or 8.5 inches of total depth space. This power supply is by no means the deepest PS that I have seen or used in my builds, its just a factor to be aware of.
The variable speed fan ran quietly during my testing and provided excellent airflow. I credit this to the larger 140mm fan that Corsair used, versus the standard 120mm fans used by other PS.
Corsair also includes a package of 10 black wire ties to help dress the cables with and four black colored matching mounting screws. The logo stickers applied to both sides of the PS are reversed, so no matter which mounting orientation you use (top or bottom mount) the logo showing is always right side up. All of the output jacks and cables are clearly labeled. These are all a nice added touches.
As a longtime user of Corsair power supplies I have no issues with recommending the CX750M PS for end-users looking for a good, cost effective, power supply. These are also excellent replacements for older computers with failed power supplies. This power supply should have no problems powering two low-end to mid-end, non-over-clocked graphics cards. I would recommend a larger, more costly, gold PS for users who want to build a high-end gaming, or workstation system. This power supply should be fine though for most budget to middle market class end-user applications.
Pros: *Semi-Modular in design, not full or standard modular.
*Plenty of connectivity for all of your peripherals. I just don't see anyone needed to buy any adapters after employing this PSU.
*Silent Operation - as my system was unable to push much past 275w of power I never heard the fan ramp up.
*Solid build quality from the case, the fan and the cabling.
*5 Year Warranty!
Cons: *Says it's Modular.. it's Semi-Modular which is not bad just making sure people don't purchase this thinking its full modular.
Overall Review: I think some of the other reviewers just had bad luck. It happens. I've yet to encounter a failing or failed Corsair power supply. In general, they are very solid PSU's and I'd recommend them with no reservations. I can't speak to their reliability in high power high end builds..such as one with Dual 1080's... but for average gaming / office or productivity builds... can't go wrong.
Pros: Subtle looks with a semi-modular configuration. Nice flat cables without cable sheathing to get caught on everything while you route the cable.
Cons: No issues. The only thing that might be a con is that it's not fully modular, but for my use it wasn't a problem.
Overall Review: I've had this powersupply for approximately a month. In that time I've run an FX8350 and FX8320E chip overclocked to around 4.5. I am also running a GTX780 and 32GB of DDR3.
Most of my time is spent running various VM's in lab etc.
I've not experienced a single glitch or issue with this PSU. I formerly had a TX650 for over three years on this machine without a single issue. This new unit was much easier to install and with the semi-modular design less cable clutter to disrupt air-flow.
Pros: Modular cuts down on the amount of junk in your case, and is the only way to go if you are building a pc today.
The variable speed fan will slow down if your load is low, so I frequently don’t hear my pc at all during idle times. Even when i start gaming, I haven’t seen the power supply fan speed go up noticeably
My pc has run stable with this supply for the past ~2 weeks, if I encounter any problems I’ll update my review.
Cons: Only the CPU and MB power connections are braided, I wish the other accessory cables were as well.
I had an old power supply ages ago that came with a zippered pouch for the accessory cables you weren’t using, and it’s a shame that corsair doesn’t do the same.
Overall Review: My last power supply was a 400 watt modular corsair, and it ran my pc 24/7 for 7 years without a hiccup. I’m happy to replace it with another larger model from corsair and I’m sure it will continue to work for years to come.
Pros: This is a 750W power supply which has the motherboard and CPU cables attached and the rest of the cables are modular. As both the motherboard and CPU cables are required for basically all builds, having them attached rather than modular isn't really much of an issue.
The power supply easily installed in my Blackhawk case and the cable length for the most part was good--the CPU cable was almost too short to route behind the motherboard, but with care it was just barely long enough to work. This power supply includes a total of four PCI-e 6/8 pin connectors for a two-GPU setup, which is appropriate for its wattage.
In testing both at idle and at load, the power supply remained nearly silent, its sound being lost behind the soft sound of the case fans.
Cons: The cables could be longer, particularly the CPU cable. No other issues noted.
Overall Review: This PSU has a 5-year manufacturer warranty--unusual for a power supply in this price range. Should you encounter issues, the warranty could prove valuable.
Pros: Powered everything I needed it to.
Modular cables were easy to bend.
750W modular at a good price.
Covers 4th Gen CPU's
Overall Review: Was kind of a no frills PSU, but thats ok. I didnt want to spend a ton, just wanted something that could power well with modular cables. this did the job.
Pros: This is a CWT power supply, with narrow tolerance caps and an efficient, well-planned layout in its design.
It is Semi-Modular, not Modular as stated in the title description. In the small print, you see "Semi-Modular". I place this in the pros because the two most critical connectors are hard-wired, and this is good. All systems will always use these two connections, so there is no reason (other than appearance) for these to be modular. Each modular connector added to the chain adds resistance, and resistance equals heat and noise.
Clean appearance; no lights or screaming demon decals, so I can use this in a professional environment.
Voltage measurements on first boot were within tolerance, and 3 weeks later there was no change. Other than rebooting to verify these numbers in the BIOS, the system was on 24/7 and had no power-related issues.
Cons: I only have one con, and that is the slight discomfort I have deploying this particular model with so many reports of failure around the 2 year mark.
Overall Review: The system in which this power supply was tested - MSI Z170A gaming 3x Krait, MSI GeForce GTX 1060 GAMING X 6G, Corsair H1000i water cooling, Intel Core i7 6700k @ 4.7, etc.
Converting 2 Blu-Ray to mkv in parallel caused an audible squeal, which I feared was coil whine. My 57-yr-old ears weren't able to verify the source until I used a long plastic tube to identify the source - the pump in the heatsink housing of the water cooler. While relieved to know that it isn't the power supply, I did want to mention that another Corsair product was the source.