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Corsair SF600 Platinum PSU Review: Setting The SFX Performance Bar Higher — Tom’s Hardware

Tom’s Hardware Verdict

This is the best SFX-based PSU that money can buy. Although we are anxiously waiting for Corsair’s higher-capacity SF750 to land in our lab, enthusiasts who don’t need that much power will be extremely happy with the company’s improved SF600 Platinum. Or, if you want to save some money, check out the older SF600 Gold, which remains in production and is still a great power supply.

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Pros
  • +

    Top-notch performance

  • +

    Quiet operation

  • +

    Excellent build quality

  • +

    Fully modular

  • +

    Individually sleeved cables

  • +

    SFX-to-ATX bracket adapter included

  • +

    7-year warranty

Cons
  • The semi-passive mode cannot be deactivated

  • High inrush current with 230V input

  • We would like to see 2x EPS connectors

  • Turn-off overshoot at +12V needs to be addressed

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Features and Specifications

Corsair’s SF600 Platinum sets new standards for performance and efficiency in the SFX segment. The cherry on top is this PSU’s ultra-quiet operation, especially under tough conditions with high loads on the minor rails. That’s is an improvement over the SF600 Gold, which forces its fan to spin at high speeds in the same usage scenario.

Taking something that’s already good and making it better is tough to do, but Corsair and Great Wall collaborated to build an even better small form factor PSU. Their SF600 Platinum is the current performance king among SFX power supplies. It comes equipped with individually sleeved cables and an SFX-to-ATX adapter. However, the SF600 Platinum also costs more than its predecessor, the SF600 Gold. You’ll have to factor in a hefty premium when it comes time to determine if higher performance and improved efficiency are worthwhile.

The SFX and SFX-L categories are becoming more popular targets for PSU manufacturers. SilverStone was the first company to really innovate in this segment, and it still offers the most options with 12 SFX and SFX-L products in its portfolio. Corsair does sell fewer SFX-compatible power supplies, but it impressed us early on with the SF450/600 models. Now, with the introduction of its 80 PLUS Platinum-rated designs, our expectations are set high.

Right out of the gate, though, we’re a little disappointed in the 600W model’s cable configuration, which remains unchanged from the SF600 Gold. In fact, the 450W and 600W versions share the same number and type of cables. We find this odd, since the SF600 Platinum should be capable of supporting more devices.

  • Corsair SF600 Platinum at Amazon for $144.99

At least until the SF750 hits our lab, Corsair’s SF600 Platinum is the highest-capacity model we have to test. Rather than affixing a v2 on this second-gen power supply, the company stuck to its 80 PLUS efficiency certification for identification purposes. The older SF600 Gold will remain in production as a more affordable alternative for folks who want a capable SFX-based PSU but don’t necessary need to pay extra for increased efficiency.

Specifications

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Manufacturer (OEM) Great Wall
Max. DC Output 600W
Efficiency 80 PLUS Platinum, ETA-A (88-91%)
Noise LAMBDA-A (20-25 dB[A])
Modular ✓ (Fully)
Intel C6/C7 Power State Support
Operating Temperature (Continuous Full Load) 0 — 50°C
Over-Voltage Protection
Under-Voltage Protection
Over-Power Protection
Over-Current (+12V) Protection
Over-Temperature Protection
Short Circuit Protection
Surge Protection
Inrush Current Protection
Fan Failure Protection
No Load Operation
Cooling 92mm rifle bearing fan (NR092L)
Semi-Passive Operation
Dimensions (W x H x D) 122 x 65 x 102mm
Weight 0. 874 kg (1.93 lb)
Form Factor SFX, EPS 2.92
Warranty 7 years

One of the biggest differences between the SF600 Gold and this latest model is that the Platinum version has a much better LAMBDA noise rating. Corsair, with Great Wall’s help, improved the fan controller’s response to high loads on the minor rails. That wasn’t the case previously; the older model’s fan went crazy when the 5V and 3.3V rails were hit with those same load scenarios.

All of the protection features we’d expect from a high-end PSU are accounted for. The power supply is your PC’s heart. As such, it’s responsible for protecting itself and all of the hardware behind it from brownouts and other abnormal situations.

Cooling is handled by a 92mm fan (the same one used in all of Corsair’s SF models). Thanks to the rifle bearing inside, it should last a long time. That’s why Corsair has no problem covering the SF600 with a seven-year warranty. Nonetheless, some enthusiasts expect FDB fans in expensive PSUs. Just remember that many high-end power supplies claiming to use FDB fans actually employ rifle bearing ones. At least Corsair is honest. On top of that, this fan has proven itself to be reliable in a number of other products. If it works well, why change it?

Power Specifications

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Rail 3.3V 5V 12V 5VSB -12V
Max. Power Amps 20 20 50 2.5 0.3
Watts 120 600 12. 5 3.6
Total Max. Power (W) 600

The combined load on the minor rails is high at 120W, while the single +12V rail can deliver up to 50A. On paper, the 5VSB rail offers up to 12.5W, though it gets as high as 17.5W in the real world before OCP intervenes.

Cables & Connectors

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Modular Cables
Description Cable Count Connector Count (Total) Gauge In Cable Capacitors
ATX connector 20+4 pin (300mm) 1 1 16-18AWG No
4+4 pin EPS12V (400mm) 1 1 16AWG No
6+2 pin PCIe (700mm) 2 2 16AWG No
SATA (100mm+105mm+105mm105mm) 1 4 18AWG No
4 pin Molex (100mm+105mm+105mm) 1 3 18AWG No
AC Power Cord (1400mm) — C13 coupler 1 1 18AWG

Unfortunately, there are only two PCIe connectors and a single EPS one. If the SF600 Platinum had one EPS and four PCIe connectors, or two EPS and two PCIe connectors, we would be happier.

All of the cables, aside from the ones hosting PCIe connectors, are short. That’s not surprising, since this PSU is designed for small form factor cases. It is strange, however, to see 700mm PCIe cables when the single EPS cable is only 400mm long.

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Aris Mpitziopoulos is a Contributing Editor at Tom’s Hardware US, covering PSUs.

Corsair RM750x (2021) review | PC Gamer

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The best mid-capacity PSU in 2022.

(Image: © Future)

Our Verdict

The Corsair RM750x (2021) takes the performance lead over the competition thanks to its excellent platform and top-notch build quality.

For
  • High build quality
  • Magnetic Bearing Fan
  • Ten-year warranty
Against
  • Average efficiency could be a bit higher
  • In cable caps might bother some

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The newest version, introduced in 2021, of the Corsair RM750x unit, managed to improve an already outstanding product. Corsair’s RMx line is among the best in the PSU market, combining high performance and reasonable prices, and the RM750x is clear proof of this. The competition is tough, but Corsair’s R&D manager, Jon Gerow (aka famed PSU reviewer Jonnyguru), and his team of engineers manage to create products that set the bar higher and higher. 

You simply cannot go wrong with an RMx unit and this is why our pick for the best PSU for gaming in the 750W category is the RM750x.

Specifications

Image 1 of 5

(Image credit: Future)(Image credit: Future)(Image credit: Future)(Image credit: Future)(Image credit: Future)

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Technical
Manufacturer (OEM) Channel Well Technology
Max. DC Output 750W
Efficiency 80 PLUS Gold, Cybenetics Gold (87-89%)
Noise Cybenetics A- (25-30 dB[A])
Modular Yes (fully)
Intel C6/C7 Power State Support Yes
Operating Temperature (Continuous Full Load) 0 — 50°C
Protections OVP, UVP, OPP, OCP, OTP, SCP, surge
No Load Operation No
Cooling 140mm Magnetic Levitation Fan (NR140ML)
Semi-Passive Operation Yes
Dimensions (W x H x D) 150 x 85 x 160mm
Weight 1.64 kg (3.62 lb)
Form Factor ATX12V v2. 53, EPS 2.92
Warranty 10 Years
Price $140

The new Corsair RMx (2021) line consists of five models with capacities ranging from 550W to 1000W, and the main differences with the previous models are depicted below.

  • Magnetic levitation fan for an increased lifetime under high operating temperatures
  • Modern standby compatibility for fast wake from sleep times
  • High efficiency under very light and light loads
  • Three EPS connectors with the 1000 W and 850 W units
  • Cybenetics and 80 PLUS certifications

The fan upgrade is a highly welcome feature. It boosts reliability, even under harsh conditions where most rifle and fluid dynamic bearing fans would have issues in the long run.

The build quality is also outstanding in this CWT platform, which is only available to Corsair. The caps on both primary and secondary sides are Japanese and the FETs, along with the magnetic levitation fan, won’t have a problem outliving the ten-year warranty.

Swipe to scroll horizontally

Power
Rail 3.3V 5V 12V 5VSB -12V
Max. Power (amps) 20 20 62.5 3 0.3
Max. Power (watts) 150 150 750 15 3.6

The 12V rail can deliver up to 750W, while the minor rails are powerful with 150W max combined power.

Swipe to scroll horizontally

Cables
Cable Amount included In-cable caps
ATX Connector 20+4 pin 1 Yes
4+4 pin EPS12V 2 Yes
6+2 pin PCIe 2 Yes
SATA 3 No
4-pin Molex 1 No
AC Power Cord 1 N/A

With two EPS and four PCIe connectors in two cables, this PSU can handle a powerful gaming system. All cables are long enough, so there won’t be any issues in large chassis. The only problem could be the short distance between the peripheral connectors, especially the 4-pin Molex ones, since the parts requiring these connectors, e.g. case fans, are usually installed far from each other.

Performance

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The 12V rail’s voltage increases at light loads, affecting load regulation. Something similar happens to the other rails. Nonetheless, in real life conditions the load regulation on all rails is much tighter than what is shown in the graphs.

On the other hand, ripple suppression is ground-breaking! The combination of the platform’s design and the in-cable caps bring these outstanding results. 

The hold-up time is extra long and the same goes for the power ok signal’s hold-up time, and inrush current is low with both voltage inputs.

This is the first time that we see an ML fan in a PSU and this is great.

Efficiency is at good levels with normal loads and sky-high with light and super-light loads, but the 5VSB rail doesn’t stay behind in efficiency compared to the main PSU’s circuit. Vampire power is low, nonetheless. 

There is room for efficiency improvements, especially at higher loads.

The transient response is good on the minor rails, but there is room for improvement at 12V, which is the most important rail.

The OCP triggering points at 12V and OPP are set correctly under hot and cold conditions. There is no need for such high OCP triggering points, though, for the minor rails, especially 3.3V which are only lightly used in today’s systems.

Though when it comes to relative performance, the RM750x (2021) easily takes the lead in this category. It is worth noting this is not a noisy unit, but the difference from the previous model is vast. The ML fan is partially responsible for the increase in noise output.

Final thoughts

(Image credit: Future)

This is the first time that we see an ML fan in a PSU and this is great, because these fans are super reliable. Although the output noise has increased compared to the previous model, with the rifle bearing fan, still we fully support Corsair’s decision to proceed with this type of fan. The cooling fan is the crucial part of every PSU, highly affecting its reliability, so it is important to use the best fan possible. If the fan fails, everything else will do within a short period and there is even the danger of a fire hazard, if the over-temperature protection is missing. This is why the cooling fan and the filtering caps are two of the most important parts of a power supply.

More generally, the Corsair RM750x (2021) takes the performance lead over the competition thanks to its excellent platform and top-notch build quality. But if we had to pick an alternative, in case this isn’t around your area, it’d be XPG’s Core Reactor 750W.

Corsair RM750x (2021): Price Comparison

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Corsair RM750x (2021)

The Corsair RM750x (2021) takes the performance lead over the competition thanks to its excellent platform and top-notch build quality.

rating of power supply companies for computers

The power supply is one of the most important components of a gaming PC, providing all components with energy. In the event of a failure, a poor-quality power supply unit can drag the entire system along with it, so it is not recommended to buy a power supply unit “for change”. In our ranking, you can find the best manufacturers of this type of PC components, which will help you make an informed choice.

Chieftec

A company that manufactures power supplies, cases and professional PC accessories. Chieftec power supplies are renowned for their reliability and durability.

Pay attention to models from the ECO series, which meet modern energy efficiency and environmental standards, are TÜV certified and have a minimal impact on the environment. This line includes power supplies from 400 to 700 W with an efficiency of more than 85%, such as the Chieftec GPE-700S.

If you need something more powerful, then you should opt for the Proton series, which is made up of modular models with power from 650 to 1000 W, for example, the Chieftec BDF-1000C.

XPG

XPG is ADATA’s subsidiary brand focused on gaming products. Among them are power supplies, for which the manufacturer uses only high-quality components.

Models are divided into four lines: Core Reactor (80 Plus Gold class power supplies equipped with Japanese capacitors), Pylon (bronze PSUs for mid-range and high-end assemblies), Cybercore (Platinum class with a powerful cooling system and Japanese capacitors), Fusion (Titanium-grade power supplies, uncompromising option for any scenario with a 12-year warranty).

be quiet!

The German brand, whose equipment, in accordance with the name, boasts reduced noise. In the arsenal of be quiet! – computer cases, fans and power supplies: reliable and quiet.

The manufacturer offers options for different configurations and budgets. From the Compact line, which is designed for quiet operation and the ability to install in oversized cases, continuing with the Essential series, which can become the basis for mid-range systems due to the excellent balance of power, quality and price, to Premium and High-End lines for top gaming builds . Gamers who want to save money can opt for the Pure Power 11 model, and for those who need everything at once, the Dark Power 13 is suitable.

Seasonic

A Taiwanese company that specializes in the production of power supplies. Seasonic has been on the market since 1980, so it has considerable experience in the production of quality products.

The brand offers several lines, including affordable ones like CORE with 500 to 650 W, mid-range options like Vertex with 750 to 1200 W, as well as top models like Seasonic Prime TX with «titanium» certificate and power up to 1600 watts.

Cooler Master

A Taiwanese corporation that specializes in cases, power supplies and cooling systems. The Cooler Master product range contains a wide range of options to suit any application.

In terms of specific models, for example, the semi-modular MasterWatt 650 would be a good choice for the owner of a mid-level build, given the affordable price and bronze certification. And the XG850 Plus Platinum combines bright ARGB lighting with high quality components.

Thermaltake

A Taiwanese company whose portfolio includes power supplies, cases, PC cooling systems, laptop coolers and other peripherals.

Thermaltake offers options such as software-monitored and managed PSUs, premium backlit PSUs, and mid-range and entry-level models. So, for example, Toughpower iRGB PLUS with 80 PLUS Platinum certification will make you forget about any possible problems associated with the PC power supply.

Corsair

American manufacturer of gaming equipment and peripherals. It produces RAM, keyboards, mice, cases, cooling systems and, of course, power supplies.

Bronze, Gold, Platinum and Titanium certified options are available in the range, differing in power, performance and cost. There are power supplies for compact builds, overall PCs, mid-range configurations. Separately, it is worth noting the Corsair RM line, which boasts a good balance of price and quality.

1STPLAYER

1STPLAYER is a relatively young Chinese brand that produces products for gamers. These include computer cases, power supplies, cooling systems, peripherals, armchairs, tables and sofas, as well as other merchandise such as t-shirts and bags.

As for power supplies, this category includes affordable models with quality components (the manufacturer says Japanese capacitors) and a long warranty period. For example, the 1STPLAYER DK PREMIUM device will provide a complete set of all kinds of protection, an efficient fan and a set of long and flexible cables.

DeepCool

Chinese manufacturer of computer components, including cases, cooling systems, power supplies. The products are of high quality and reliability.

The brand offers PSU models for a wide range of applications, including 350W options for energy-efficient builds, as well as top-end 1000W PSUs capable of powering multi-core processors and flagship graphics cards.

Zalman

South Korean company, manufacturer of cooling systems, cases, power supplies and gaming peripherals.

Users can look forward to both expensive models suitable for performance builds and budget options like the Wattbit ZM400-XE model designed for office PCs.

FSP

Power supply manufacturer from Taiwan, the fifth largest player in this segment. There are few gaming models with RGB lighting and other attributes in the brand’s arsenal, but the quality of the components and the presence of all the necessary protection systems compensate for this small drawback.

EVGA

American manufacturer, which is primarily known for its video cards — quality, quiet and manufacturers. However, EVGA also produces other components, including power supplies.

Fractal Design

Swedish company that produces silent computer cases. As well as other PC components, including power supplies, which are divided into two lines: Ion (high-performance models with Gold and Platinum certifications) and Anode (affordable options for compact PC builds).

ASUS

One of the leaders in the modern computer equipment market, a company that produces a wide range of devices, from laptops to gaming mice.

ASUS offers two power supply lines: ROG and TUF. The first is designed for flagship gaming systems and is designed for enthusiasts: here high power is combined with backlighting and quiet operation. The second is suitable for mid-range and entry-level PCs, featuring good reliability and affordable price.

Xilence

A German-Chinese company whose products focus on reducing PC noise and efficiently cooling PC components. For gaming PCs, the Performance X, Performance A + III, Performance C and Gaming lines are perfect.

Gigabyte

Taiwanese computer equipment company. It produces products under two brands — Gigabyte and gaming Aorus. The second option is perfect for those who appreciate style and originality: power supplies have a defiant appearance, while the manufacturer does not forget about the high-quality “stuffing”.

HIPER

HIPER is a British brand that produces a wide range of equipment in various categories, from smart home and tools to gaming furniture and accessories. Including power supplies, among which there are both budget models, such as the HIPER HPB-600SM with a capacity of 600 W and a semi-modular cable system, and expensive options, for example, the 800-watt HPB-800FM, modular, with a «bronze» certificate.

GMNG

GMNG is a brand that makes affordable products for gamers. Among other things, the company launched the production of power supplies that are suitable for mid-range builds: they are distinguished by their low price, attractive design and reliable components.

Riotoro

American brand (operating in China) that makes cases and power supplies for PCs.

Aerocool

Taiwanese manufacturer of computer components. It releases devices from the budget segment, which sometimes affects the quality: only the lazy did not joke about power supplies from the KCAS line. However, the manufacturer also has very original solutions, such as the Mirage line, with RGB lighting and a mirror, which together create the effect of “infinity”. Models use Japanese capacitors and are highly efficient, corresponding to the 80Plus Gold certification.

Best power supply in 2022

Top

11/07/2022

Author: Dmitry Mukharev

1 star 2 stars 3 stars 4 stars 5 stars0002 14

When choosing a power supply, you should not save money, because its breakdown can render much more expensive computer components unusable. Well, in order to facilitate your choice, we have prepared the top of the best power supplies for PCs of various levels.

Many people continue to buy power supplies on a leftover basis. And, meanwhile, this is one of the most important components of any system, the failure of which can «kill» much more expensive components. Therefore, when buying a power supply, it is important to give preference to reliable and time-tested platforms. And it’s definitely not worth saving.

In today’s article, we’ve rounded up the best power supplies for everything from simple office builds to high-end multi-GPU PCs.

Contents

  • XPG Pylon 550W
  • Corsair RM550x 550W
  • XPG Core Reactor 650W
  • Cooler Master V750 Gold V2
  • be quiet! Straight Power 11 Platinum
  • Corsair HX1200
  • be quiet! Dark Power Pro 12 1500W
  • Power: 550 W
  • Efficiency: 80 PLUS Bronze
  • Noise level: Cybenetics A- (25-30 dB[A])
  • Form factor: ATX
  • Number of SATA connectors: 7
  • Number of PCI-E slots: 4
  • Cabling system: non-modular

An excellent and inexpensive power supply is suitable for not the most productive systems that do not need kilowatts of energy. XPG Pylon 550W is built on a not the most modern, but very reliable platform and uses a high-quality fluid dynamic bearing fan, and from 2022 the warranty for this power supply has been increased to 5 years. Perhaps its only drawback was the non-modular design. But is it so necessary with a fairly small number of cables?

Benefits

  • High build quality
  • Near-instant recovery from sleep mode
  • Reliability

Disadvantages

  • Non-modular cabling
  • Poor efficiency at minimum load
  • Power: 550 W
  • Efficiency: 80 PLUS Gold
  • Noise level: Cybenetics A+ (15-20 dB [A])
  • Form factor: ATX
  • Number of SATA connectors: 6
  • Number of PCI-E slots: 2

If you’re not on a tight budget, a much more interesting 550W Corsair RM550x power supply can be a great alternative to the XPG Pylon 550W. Not only does it eliminate ADATA’s main design flaw and uses a fully modular cabling system, it’s also noticeably more efficient than this power supply, and its top-notch magnetic levitation fan makes it virtually silent. For complete happiness, the RM550x lacks a second EPS connector. True, most users do not need it.

Benefits

  • Excellent efficiency
  • Virtually silent
  • Fully Modular Cabling System

Disadvantages

  • Crowded peripheral connectors
  • Power: 650 W
  • Efficiency: 80 PLUS Gold
  • Noise level: Cybenetics A+ (20-25 dB[A])
  • Form factor: ATX
  • Number of SATA connectors: 12
  • Number of PCI-E slots: 4

Another power supply from ADATA’s XPG brand in our ranking stands out for its very quiet operation and excellent efficiency. Moreover, in terms of the latter indicator, it surpasses even the Corsair RM650x of similar power. Two EPS connectors make this PSU compatible with top graphics cards, but we never had any questions about the build quality of XPG products.

Benefits

  • High efficiency
  • Quiet operation
  • Fully modular

Disadvantages

  • EPS connectors located on one cable
  • Power: 750 W
  • Efficiency: 80 PLUS Gold
  • Noise level: Cybenetics A- (25-30 dB[A])
  • Form factor: ATX
  • Number of SATA connectors: 12
  • Number of PCI-E slots: 4

The

Cooler Master V750 Gold V2 stands out against the background of all the representatives of our top not so much with its efficiency and low noise level, but with its platform. Cooler Master decided to take advantage of the developments of Gospower, a little-known company in the power supply segment, and this paid off. In terms of its performance, the PSU surpasses even such a seemingly permanent chart leader as the Corsair RM750x. True, and to call this product inexpensive, unfortunately, will not work.

Benefits

  • High overall performance
  • Quiet operation
  • Fully modular
  • Effective protection

Disadvantages

  • Short distance between connectors
  • Power: 1000 W
  • Efficiency: 80 PLUS Platinum
  • Noise level: up to 29 dB
  • Form factor: ATX
  • Number of SATA connectors: 11
  • Number of PCI-E slots: 6

This extremely powerful power supply is specially designed for high performance home PCs. At the same time, it not only offers excellent efficiency in full compliance with the 80 PLUS Platinum standard, but also has a quiet operation due to the use of a virtually silent Silent Wings 3 fan. save you from a web of unnecessary wires.

Benefits

  • Extremely high efficiency
  • Quiet operation
  • Fully modular

Disadvantages

  • Expensive
  • Power: 1200 W
  • Efficiency: 80 PLUS Platinum
  • Noise level: Cybenetics A (avg. 22.63 dB[A])
  • Form factor: ATX
  • Number of SATA connectors: 16
  • Number of PCI-E slots: 8

High performance and efficient Corsair HX1200 power supply is built on a high-quality, albeit slightly simplified, CWT platform. It does not give full control over the system, but it is distinguished by the simplicity that most users appreciate. Well, the power of the power supply is enough for any most modern assembly. The undoubted advantages of the model include its quiet operation.

Benefits

  • Quiet
  • There is support for semi-passive mode
  • Fully modular
  • Excellent efficiency

Drawbacks

  • Uncomfortable ATX, EPS and PCIe cables
  • Expensive
  • Power: 1500 W
  • Efficiency: 80 PLUS Platinum
  • Noise level: Cybenetics A- (25-30 dB[A])
  • Form factor: ATX
  • Number of SATA connectors: 16
  • Number of PCI-E slots: 10

If you are looking for a quiet and powerful power supply, be quiet! Dark Power Pro 12 1500W is your choice.