Which company's power supply is better? How to choose a power supply for your computer

All things around us consist of individual parts. Accordingly, a particular device or object can be disassembled into its component parts. But let's think about what an ordinary person can buy in parts and then assemble something whole? A smartphone or an audio system is unlikely, but enthusiasts collect personal computers all the time. The result is slightly cheaper than ready-made factory assemblies. And no one canceled the pleasure from the process.

Of course, a motherboard, a powerful processor and video card, and a large amount of RAM are important, but without proper power, even the coolest components will be of no use. And the elements are supplied with energy by a small box, which sometimes receives very little attention - this is the power supply. We will try to correct such a serious omission in our traditional ranking. But before we get to it, let's look at a couple of very important points.

The best power supply manufacturers

In recent years, the market for stationary PCs and their components has been gradually losing momentum, but this does not reduce the number of manufacturers. At the same time, we should not forget that some cunning companies simply stick their logo on the finished product. Of course, you shouldn’t trust such people. Fortunately, the power supply industry is quite conservative and there are a number of companies that you can trust unconditionally - these are Antec, be quiet!, ENERMAX and SeaSonic. Also worthy of your attention are major players in the component market, such as Corsair, FSP, ZALMAN, DeepCool, AeroCool, Chieftec, etc., which produce slightly cheaper options.

The best inexpensive power supplies costing up to 2,500 rubles.

3 GIGABYTE GZ-EBS50N-C3 500W

Thoughtful design
Country: Taiwan
Average price: RUB 2,075.
Rating (2019): 4.5

At first glance, the PSU from GIGABYTE inspires confidence. Solid black matte case, the hole for the wires is limited by a plastic ring, which prevents chafing. The wires, of course, are not braided, but in this price category you can’t expect anything else. The power supply can also be praised for the thin wire grille that covers the cooler - due to this, the airflow is excellent, and getting to the fan for cleaning is easy as pie. Everything is great, but there is one huge catch - in fact, the power supply produces a maximum of 350 W, as evidenced not only by the small text on the sticker, but also by real measurements.

Advantages:

Not a bad design
Easy access to the fan for cleaning
Lowest cost

Flaws:

The actual power does not match the declared one

2 FSP Group Q-Dion QD450

Excellent efficiency
Country: Taiwan
Average price: RUB 1,862.
Rating (2019): 4.6

The second line of the rating is occupied by an inexpensive model from Q-Dion. In fact, the model was developed by the well-known FSP Group, which indicates the good quality of the power supply. The appearance is as modest as possible - gray metal, non-removable wires without braiding - everything corresponds to the price tag. It is unlikely that you will be able to build a beautiful PC based on it. Note that there are two versions of this power supply: one does not have a shutdown button, which we will write down as a disadvantage, the other has it. Pleased with the slightly longer cable length than competitors. Independent tests have revealed the following:

Advantages:

Excellent efficiency indicator. Even under maximum load, the power supply provides an efficiency of at least 80%
Acceptable temperature level

Flaws:

High noise level at loads above 150 W

What should be the power of the power supply? Unfortunately, not all people who assemble a PC on their own ask this question. It often happens that in pursuit of savings, buyers leave their old, low-power power supplies, which is why a newly assembled computer may either not start or turn off under high load - for example, in a dynamic scene in a video game. The second extreme is too much power. Of course, there will be no harm from a 1.5 kW power supply, but your wallet will obviously lose more weight than necessary.

So it turns out that you can’t do without mathematics here. So, the CPU consumes from 35 to 160 W depending on the model, the video card - 75 W via PCIe, 75 W via 6-PIN, 150 W via 8-PIN (if there are several connectors on the card - we add it up), motherboard - 35-65 W, each RAM module averages 5 W, HDD – maximum 15 W. The rest are “trifles”, like coolers, PCI-X devices, etc. consumes less than 5 W, and therefore can be ignored. Detailed information about consumption can be found in the technical characteristics of a particular part, but it will be much easier to use a power supply power calculator. Fortunately, such services are available both on specialized websites and on manufacturers’ pages.

1 AeroCool VX500 500W

The best ratio of price and quality
Country: Taiwan
Average price: RUB 1,729.
Rating (2019): 4.7

AeroCool is an excellent manufacturer of cooling systems, but their power supply also turned out to be very good. The power, according to users, is as advertised, the build quality is good, but there are several serious shortcomings. Firstly, there is a high noise level, which cannot be overcome without serious intervention in the internals. Secondly, the presence of only a 6-pin connector for a video card. Fortunately, the cost of the model is the lowest in our rating, and therefore, if silence is not important to you, you can safely buy it.

Advantages:

Relatively high efficiency
Good appearance
Large area of ventilation openings
Outputs up to 38A at 12V1

Flaws:

Noisy
No 6+2-PIN connector

The best power supplies costing from 2500 to 5000 rubles

4 Chieftec GPE-700S

The most powerful power supply in its class
Country: China
Average price: 3388 rub.
Rating (2019): 4.5

What about the other aspects? The appearance is quite interesting - stampings and beveled corners add some flair - the device will look great on a gaming computer. The cables are multi-colored, most of them without braiding - a minus for them. And the length allows you to install the power supply only in MicroATX cases. We will also criticize the set of connectors - they are enough for a 500-horsepower unit, but not for a 700W model.

Advantages:

Power 700 W

Flaws:

Low efficiency - for loads over 600W the value drops to 76-78%
High noise level - up to 54 dB at maximum load
High temperatures - capacitors can heat up to 65 degrees

It is worth noting that the stated shortcomings will not interfere with everyday work due to the impossibility of achieving maximum power in most situations.

3 Deepcool DQ550ST 550W

Highest efficiency (80plus Gold certificate)
Country: China
Average price: 4491 rub.
Rating (2019): 4.6

The third line of the rating is occupied by far from the simplest power supply. It has the least power among competitors at the highest cost. But the investment is more than justified. The reason is according to the 80plus Gold certificate. The appearance matches the price tag - the steel case is painted black, and a beautiful white fan with a diameter of 120mm is hidden behind the removable grille. Cables without braid, black, flat - these are convenient to hide to create the maximum "clean" look inside the PC. The set of cables is sufficient to assemble a modern gaming or office system.

Advantages:

Efficiency of at least 87.5% throughout the entire power range. At a load of 250-350W, the figure rises to 90.1%. Best in class
Low noise level - 35.5 dB under load
Stable voltage

2 FSP Group ATX-600PNR

Best price/power ratio
Country: Taiwan
Average price: 3,040 rub.
Rating (2019): 4.6

FSP group fully follows its “convictions” - to create the most inexpensive and simple-looking power supplies with powerful and high-quality filling. The case is practically no different from models half the price, and therefore we recommend that aesthetes who want to build a beautiful computer immediately turn their attention to another model. Also, you will not find any mention of the availability of 80plus certificates. The model shows even efficiency (83-85%) throughout the entire power range. But there is a nuance - with a power above 500 W, there is a chance that the power supply will simply turn off. But the voltage stabilization works great: on the 3.3 and 5 V lines the deviations are no more than 0.02 V, on 12 V - no more than 0.5 V.

The cooling system does not deserve such praise - the temperature of the components is quite low, but the rotation speed of the 120 mm fan varies in a very small range, and therefore the noise level is almost always above average - 45-46 dB

Advantages:

High power for little money

Flaws:

High noise level
Can be turned off when the load is over 500 W

1 AeroCool KCAS-650M

Detachable cables. Quiet cooling system
Country: Taiwan
Average price: 4,030 rub.
Rating (2019): 4.7

The leader is the power supply from Aerocool. The KCAS line belongs to the gaming line. The design of the device clearly hints at this - the strict features of the case and the discreet fan behind the stylish grill are combined with a juicy sticker on the side wall. The fan has a diameter of 140mm, which allows it to spin at a relatively low frequency, which means the noise level remains at an acceptable level, as confirmed by numerous reviews. The unit belongs to the class of partially modular: only the 24-pin ATX and 8-pin CPU cable come out of the case, everything else can be detached if necessary. All cables come in a protective braid. The cables themselves are multi-colored - immediately a minus for the aesthetics of the computer.

During testing, no obvious disadvantages were identified. The manufacturer claims compliance with the 80plus Bronze standard. The minimum efficiency was detected at powers of 150 and 550 W - 85-86%. In all other modes the indicator did not fall below 90%. Great!

Advantages:

High efficiency
Low noise level - 35 dB in normal mode
"Even" voltage on all lines.

The best power supplies over 5,000 rubles

3 GIGABYTE G750H

Most affordable in class
Country: Taiwan
Average price: 6190 rub.
Rating (2019): 4.6

Let's start the category of top-end power supplies with a relatively inexpensive 750 W model. The G750H has a very simple design - a black faceted body, an unobtrusive 140mm fan behind a removable grill. The only thing that dilutes the picture at least a little is the bright stickers on the side edges. The design is partially modular, the main cables are built into the housing, the rest can be disconnected if necessary. I'm glad that all the wires are made in the same color - black - this adds integrity to the assembly. Another option would be a fabric braid...

The power of the power supply corresponds to the nominal power. Efficiency across the entire power range is at an excellent level - 88-92%. The voltage stabilization system is also pleasing. As the 12V load increases, the line does not deviate from the nominal value by more than 0.1 V. The fan rotation speed in almost all modes is 800 rpm, which creates a noise of 40 dB.

Advantages:

Rated power corresponds to real
Excellent voltage stabilization
High efficiency

Flaws:

Somewhat noisy

2 Cooler Master V650 Modular 650W (RS650-AFBAG1)

The most reliable
Country: Taiwan
Average price: 8098 rub.
Rating (2019): 4.7

It's difficult to find fault with anything in this power supply. Judging by the measurements, the efficiency fully complies with the 80 Plus Gold certificate. All necessary protection systems are also present: overvoltage, overload, short circuit. But all this is usual for this category. But a completely modular system with flat and very flexible cables cannot but rejoice. Due to their sufficient length and high flexibility, they can be easily hidden in special niches. The package contents were also impressive - a fabric bag, detailed instructions, a full set of cables and a dozen plastic ties for fastening.

Advantages:

High efficiency and availability of all necessary protection systems
Best current on all lines
Fully modular design with soft wires
Use of Japanese capacitors and 5 year warranty
Low noise level

1 Thermaltake Toughpower DPS G RGB 650W

The best power supply for gamers
Country: Taiwan
Average price: 8190 rub.
Rating (2019): 4.9

Thermaltake knows that gamers want power and beauty. The leader of our rating satisfies both requirements. The efficiency indicator is simply excellent - below 90% it decreases only at a load of 1/10 of the maximum, while in all other cases it is at the level of 91-93%. At the same time, the system cannot be called noisy - at a load of up to 60%, the fan speed is below 600 rpm, making it almost impossible to hear it in the case.

Slightly less useful, but no less interesting features include RGB lighting and proprietary software. There are programs for PCs and smartphones on Android and iOS. It’s better not to even think about the latter, because the quality of execution is simply terrible, but the desktop application is quite functional and useful. Using it, you can change the color and brightness of the backlight, view the temperature of the power supply, current and voltage in selected sections, efficiency and power. It is also possible to set the cost of 1 kWh in dollars and see in real time how much money your PC is spending.

Advantages:

High efficiency
4x 6+2-PIN PCI-E, 8x 4-PIN IDE and 8 SATA connectors
Has RGB backlighting
Useful application for PC
Very nice and complete set

The power supply is the most important component of any personal computer, on which the reliability and stability of your build depends. There is quite a large selection of products on the market from various manufacturers. Each of them has two or three lines or more, which also include a dozen models, which seriously confuses buyers. Many people do not pay due attention to this issue, which is why they often overpay for excess power and unnecessary bells and whistles. In this article we will figure out which power supply is best for your PC?

A power supply (hereinafter referred to as PSU) is a device that converts high voltage 220 V from an outlet into computer-friendly values and is equipped with the necessary set of connectors for connecting components. It seems to be nothing complicated, but upon opening the catalog, the buyer is faced with a huge number of different models with a bunch of often incomprehensible characteristics. Before we talk about choosing specific models, let’s look at what characteristics are key and what you should pay attention to first.

Main parameters.

1. Form factor. In order for the power supply to fit into your case, you must decide on the form factors, based on from the parameters of the system unit case itself . The dimensions of the power supply in terms of width, height and depth depend on the form factor. Most come in the ATX form factor, for standard cases. In small system units of the microATX, FlexATX, desktops and others, smaller units are installed, such as SFX, Flex-ATX and TFX.

The required form factor is specified in the characteristics of the case, and it is by this that you need to be guided when choosing a power supply.

2. Power. The power determines what components you can install in your computer, and in what quantities.
It is important to know! The number on the power supply is the total power across all of its voltage lines. Since the main consumers of electricity in a computer are the central processor and video card, the main power line is 12 V, when there are also 3.3 V and 5 V to power some components of the motherboard, components in expansion slots, power drives and USB ports. The power consumption of any computer along the 3.3 and 5 V lines is insignificant, so when choosing a power supply for power, you should always look at the "characteristic" power on line 12 V", which ideally should be as close as possible to the total power.

3. Connectors for connecting components, the number and set of which determine whether you can, for example, power a multiprocessor configuration, connect a couple or more video cards, install a dozen hard drives, and so on.
Main connectors except ATX 24 pin, This:

To power the processor, these are 4 pin or 8 pin connectors (the latter can be detachable and have a 4+4 pin entry).

To power the video card - 6 pin or 8 pin connectors (8 pin is most often collapsible and designated 6+2 pin).

For connecting 15-pin SATA drives

Additional:

4pin MOLEX type for connecting older HDDs with an IDE interface, similar disk drives and various optional components, such as rheobass, fans, etc.

4-pin Floppy - for connecting floppy drives. They are very rare these days, so such connectors most often come in the form of adapters with MOLEX.

Extra options

Additional characteristics are not as critical as the main ones in the question: “Will this power supply work with my PC?”, but they are also key when choosing, because affect the efficiency of the unit, its noise level and ease of connection.

1. Certificate 80 PLUS determines the efficiency of the power supply unit, its efficiency (efficiency factor). List of 80 PLUS certificates:

They can be divided into the basic 80 PLUS, on the far left (white), and the colored 80 PLUS, ranging from Bronze to the top Titanium.
What is efficiency? Let's say we are dealing with a unit whose efficiency is 80% at maximum load. This means that at maximum power the power supply will draw 20% more energy from the outlet, and all this energy will be converted into heat.
Remember one simple rule: the higher the 80 PLUS certificate in the hierarchy, the higher the efficiency, which means it will consume less unnecessary electricity, heat less, and, often, make less noise.
In order to achieve the best efficiency indicators and obtain the 80 PLUS “color” certificate, especially at the highest level, manufacturers use their entire arsenal of technologies, the most efficient circuitry and semiconductor components with the lowest possible losses. Therefore, the 80 PLUS icon on the case also speaks of the high reliability and durability of the power supply, as well as a serious approach to creating the product as a whole.

2. Type of cooling system. The low level of heat generation of power supplies with high efficiency allows the use of silent cooling systems. These are passive (where there is no fan at all), or semi-passive systems, in which the fan does not rotate at low powers, and starts working when the power supply becomes “hot” under load.

When selecting a power supply, you should pay attention to for the length of the cables, the main ATX24 pin and the CPU power cable when installed in a case with a bottom-mounted power supply.

For optimal installation of power wires behind the rear wall, they must be at least 60-65 cm long, depending on the size of the case. Be sure to take this point into account so you don’t have to bother with extension cords later.
You need to pay attention to the number of MOLEX only if you are looking for a replacement for your old and antediluvian system unit with IDE drives and drives, and even in significant quantities, because even the simplest power supplies have at least a couple of old MOLEX, and in more expensive models There are dozens of them in general.

I hope this small guide to the DNS company catalog will help you with such a complex issue at the initial stage of your acquaintance with power supplies. Enjoy the shopping!

Let's start with the obvious - with power. Remember that the purchased power supply must have at least 25% power reserve from the peak power in the assembled system (it is not difficult to calculate it - there are many online calculators on the Internet). Taking into account the future upgrade, it is worth setting aside up to 50% of the reserve - this will not only allow you to seriously increase energy consumption in the future, but will also reduce the load on the power supply, ensuring it operates in the most optimal part of the efficiency curve.

The efficiency of switching power supplies is nonlinear - at low load and at maximum it is lower than at average (around 50-60%). However, the efficiency that is most important to us is at maximum load, especially when we are talking about systems with high power consumption. If you are assembling a simple PC with a 250-watt power supply, then its efficiency will not be decisive - even a cheap “Chinese” one will heat up slightly. But at powers above 500 W, a difference of a few percent in efficiency will already make a serious difference in heating, and this directly affects not only the noise of the power supply, but also its resource, especially when the radiators and fan impeller have already collected dust.

We recommend that you consider only power supplies for purchase with 80 Plus certification, indicating that the efficiency of the power supply is above 80% (this not only promises low heating, but also directly indicates the quality of the components). There are several certification options, we present them in order of increasing efficiency: Bronze->Silver->Gold->Platinum->Titanium. And, if at powers within 500 W the 80 Plus Bronze unit will be a completely balanced choice, then in the kilowatt region it is already worth looking at “platinum”, or even “titanium”.

In the list of characteristics you need to pay attention to one more point. This is about presence of PFC- physically, the operation of this system is to minimize the phase shift that is inevitable in AC networks due to the presence of high-capacity capacitors at the input of the power supply. If a power supply without PFC has a power factor of about 70%, then active PFCs can bring it to almost an ideal unity - and with a kilowatt load this provides no less than a savings of up to 300 watts of power consumption. But do not forget that not every PFC circuit can “make friends” with uninterruptible power supplies - since in cheap UPSs the voltage shape is far from an ideal sinusoid, the PFC literally “goes crazy”, refusing to work.

Computer power supplies are equipment without which not a single system unit will work.

The correct choice of power supply will ensure the normal operation of all components (primarily graphics cards and processors).

To simplify the task, it’s worth getting acquainted with the list of popular models in 2018.

Best power supplies for PC: TOP 12

Table 1. Characteristics of power supplies.

Model name	Power, W	Connectors	Fan	price, rub.
up to 600 W
Corsair SF450	450	4 IDE, 4 SATA, video 2×6+2pin	92 mm	6200
Deepcool DA500	500	3 IDE, 5 SATA, video 2×6+2pin	120 mm	2500
AeroCool Strike-X 500		4 IDE, 1 FDD, video 2×6+2pin	140 mm	3200
Corsair RM550x		4 IDE, 1 FDD, video 4×6+8pin	135 mm	7000
AeroCool Hero 575W	575	3 IDE, 1 FDD, video 2×6+2pin	120 mm	3200
600–700 W
Seasonic Prime 600 W Titanium Fanless	600	5 IDE, 1 FDD, video 4×6+8pin	–	16000
Thermaltake Toughpower DPS G RGB 650W	650	8 IDE, 1 FDD, video 4×6+2pin	140 mm	6200
Seasonic Prime SSR-650TD	650	5 IDE, 1 FDD, video 4×6+2pin	135 mm	10300
from 750 W and above
Chieftec GDP-750C 750W	750	3 IDE, 1 FDD, video 4×6+2pin	140 mm	4800
Seasonic Electronics PRIME Titanium 750W	750	3 IDE, 1 FDD, video 6×6+2pin	135 mm	14700
Zalman ZM1000-ARX 1000W	1000	8 IDE, 1 FDD, video 6×6+2pin	135 mm	11200
Corsair HX1000i 1000W	1000	12 IDE, 2 FDD, video 8×6+2pin	140 mm	15000

Power up to 600 W

Low-performance power supplies are designed for installation on computers with integrated, outdated or not very powerful video cards.

Some models of such devices can be installed on - but only on budget or the most energy-efficient ones.

It is not advisable to install such equipment on computers with top-end video cards and processors, since the load will be close to peak values and the service life of the power supply will be reduced.

Corsair SF450

A power supply that fits perfectly into any system unit, and has a good set of supplies - the kit includes mounting screws, plastic ties, cables, and even 32 GB.

The device supports up to 4 IDE hard drives, up to 4 SATA and one video card with a low TDP.

small error in output voltage at different loads (according to the 80Plus Gold standard);
the presence of a “zero speed” mode, which ensures almost silent operation of the unit’s cooler;
a complete set of cables and small dimensions, allowing such a device to be equipped with any system units - from compact micro-ATX to huge midi-Tower;
protection against power supply problems provided by the SITI PS229 chip.

Vitaly M.: The unit makes a good impression, looks solid and is equipped with a good and quiet fan. It is quite expensive, but it has a modular design, which is very convenient to use.

Deepcool DA500

Deepcool DA500 can be called a budget option, significantly reducing the cost of a gaming computer.

The model’s performance is sufficient to operate a video card with a TDP of up to 150–170 W (for example, GTX 980 or GTX 1070).

And the presence of a two-layer filter allows you to compensate for electromagnetic interference and reduce the noise from a running fan.

active power correction system for the power supply, which reduces distortion;
good level of overload protection;
a three-year warranty period is quite long for a budget device;
the presence of a whole set of interfaces for the operation of any video cards;
economical fan.

not too high power. However, taking into account the budget cost of the model, this disadvantage can be neglected when buying the Deepcool DA500 for a budget gaming computer.

Alexander M.: Very good power supply. The advantage is the bronze certificate and quiet operation, pleasant-looking lighting and lack of strong heating. Most of the other features are quite standard and nothing special.

AeroCool Strike-X 500W

The Strike-X 500W model, like all representatives of this series of power supplies, is distinguished by a red letter X on the body and a stylish design.

The unit’s performance is more than enough for budget gaming and any office computers, and may be enough to operate an energy-efficient card like , or .

output power value that is optimal for any non-gaming computer or budget gaming models;
the presence of a circulation-improving fan with a large diameter, angular guides and built-in speed control;
additional braiding of cables, reducing the likelihood of interference.

Occasional voltage sags
a significant increase in noise when the load increases to 50% of the nominal level.

Maxim N.: The unit is medium - not so quiet during operation, but you can only hear it if the system unit is on the table. When placed normally (on the bottom shelf), the sound of operation is not annoying. The plus is the more or less affordable price, the minus is the short cable for connecting to the motherboard.

Corsair RM550x

Features of the Corsair RM550x power supply include Gold certification, ensuring performance meets the stated values, and reliable capacitors that can withstand heating up to 105 degrees.

A computer with such a device can be equipped with a powerful (but not too demanding in terms of power consumption) video card of type or.

ensured by high-quality Japanese parts, a high ratio of real power to the declared value - about 1:1;
modular design that allows you to unfasten cables for convenient placement inside the case;
the presence of a “passive” mode, ensuring virtually silent operation of the device at loads of up to 300 W;
complete with a proprietary 140 mm fan with a plain bearing.

high noise level when the load reaches a level of at least 350 W.
Some users also note the high rigidity of the cables.

Oleg M.: Decent power supply, good build and excellent ergonomics. There are a lot of connectors, although the cables, in my opinion, are quite long. The fan is very quiet, especially since I do not use it at full power. The model is perfect for a computer with a not-so-performing graphics card, such as a GTX 760.

AeroCool Hero 575W

The model from the Hero series is supplied only to the domestic market and is distinguished by its original packaging design, which depicts epic heroes.

The power supply is 80 Plus Bronze certified, guaranteeing high efficiency, and allows you to connect up to 9 drives and drives, as well as fairly powerful discrete graphics.

active power factor correction;
efficient cooling system with a 120 mm fan capable of accelerating to 1600 rpm;
low level of energy consumption - when there is no load, the power supply consumes no more than 7 W;
the average noise level is not higher than 32 dB (within a comfortable level for residential premises - even at night);
the optimal set of interfaces for any home PC.

inability to work in high temperature conditions.

The AeroCool Hero 575W PSU has no other shortcomings.– even the noise from the fan increases when peak load values are reached, not as much as with other models.

Mikhail K.: For my computer with one fairly decent video card it is quite enough. I often work or play at night, and the sound from the fan is almost unnoticeable even against the background of complete silence.

Power from 600 to 700 W

Power supplies with a power of 600–700 W are considered the best option for most gaming computers.

Their capabilities are sufficient to operate any video card and .

They are not suitable only for PCs with overclocked CPUs and modern video adapters, which are characterized by increased power consumption and require better cooling.

Seasonic Prime 600 W Titanium Fanless

The Prime 600 W power supply has such a distinctive feature as the absence of a fan and the ability to connect the most top-end video cards.

Heat is removed using passive radiators that do not create noise during operation.

Although, due to this feature, the unit is not included not only in the budget price category for such devices, but even in the average one.

fanless design ensuring minimal power consumption and noise levels;
modular type of cable connection;
the presence of reliable Japanese capacitors in the design, increasing the service life of the device;
manufacturer's warranty, claiming 12-year operation of the power supply.

The minimum amount you will have to pay for it is 16 thousand rubles.
Sometimes this model exhibits slight fluctuations in the starting current - but the problem is not so serious as to have any effect on the operation of the computer.

Kirill Z. This is not the first time I’ve bought a Sisonik power supply because of the Japanese capacitors. This model allowed me to connect not a new, but powerful and quite voracious . With such a block, you don’t have to worry about peak load on the card. and the only negative is that it is very expensive.

Thermaltake Toughpower DPS G RGB 650W

The DPS G RGB 650W power supply is one of the few models that provides not only the operation of the equipment, but also the original illumination of the system unit.

Among the components of the model, it is worth noting a special microprocessor that monitors computer performance.

a hybrid analog-digital system that expands the capabilities of the power supply;
the presence of a separate mini-USB connector on the case for powering external devices;
The model is equipped with an efficient 140 mm cooler with backlight and a choice of colors;
ten-year warranty period and declared operating time of about 120 thousand hours;
long cable lengths, on the one hand increasing the space occupied by the power supply, and on the other hand simplifying the connection of PC components.

price. you will have to pay more than 6 thousand rubles for it, and a special utility for optimizing the operation of the DPS G RGB 650W does not have the same capabilities as similar programs for power supplies of other brands.
software support. Mobile software is also not very functional and convenient.

Andrey M.: I have been using the unit for several months, collecting statistics on its operation using the software included with it. All parameters are excellent, I did not find any overheating. Among the advantages is the backlight, which looks very harmonious when the lights are off. Cons: the ability to control via the Internet is hampered by the poor interface of the mobile application, and the price is quite high.

Seasonic Prime SSR-650TD

the thickness of the cables, which practically do not bend at the points of connection to the power supply itself.
In addition, the Prime SSR-650TD may overheat during operation.

Oleg P.: I found almost no flaws in the operation - although sometimes the unit overheats and hot air comes out of it. But you can't hear the sound of the fan. The price is also not entirely affordable - but the model is worth it, especially since it supports the work of any, even the powerful Titan and R9 Fury X.

The power supply is one of the most important parts of a modern PC, especially gaming.
But many devote very little time to choosing it, believing that if it fits into the box and starts the system, then it means it fits and everything is chosen perfectly. Many people manage to look at only two things when choosing it.

1. Low price.(Not more 1000 rub)
2. The number of watts in the power supply.(Of course, the number on the sticker should be higher.) The Chinese love to throw such goodies when in reality the power BP not even close to the number they wrote.

To help you avoid wasting money, I’ll write roughly what you need to look for so as not to make a mistake in your choice. After all, buying cheap Chinese BP can lead to breakdown of all components of a not cheap computer.
http://i036.radikal.ru/1304/90/254cdb4e6c47.jpg

Clause 1.1
1. Don't skimp on the power supply.
2. Choose a manufacturer that has proven itself in the market and in this segment.
For example: Seasonic, Chieftec, HighPower, FSP, CoolerMaster, Zalman

3. Calculate the power consumption of all computer components. (You can find components on the manufacturer’s website, where all the characteristics are usually listed. Or simply by entering it into a search engine.) However, there are many options, the main thing is the desire to find it.
4. After the calculation, add a power reserve to the resulting amount to be sure (in case of errors, etc.). Point 3 can generally be left if you intend to buy a watt right away 800-900 ++.

1. Modular type.

With modular units, you can add and remove cables as desired. I realized how convenient this is after purchasing such a power supply: you can easily remove unused wires until they are needed. And you don’t have to worry about where to screw or wrap these wires so that they don’t interfere. Although this type has a higher price.

2. Standard type.
Cheaper, all wires are soldered directly into the block and cannot be removed.

In principle, if your budget allows, it is better to buy a modular option because of its convenience, although you can also choose a standard option. To your taste.

:-)
Clause 1.3 There are also differences in the Power Factor Correction -: Power Factor Correction (PFC).
active, passive
1. Passive PFC In passive PFC

a conventional choke is used to smooth out voltage ripple. The efficiency of this option is low; it is often used in units of the low price segment.
2. Active PFC In passive In active
An additional board is used, which represents another switching power supply, and increases the voltage. Which helps to achieve a power factor that is close to ideal, also helps in stabilizing the voltage.

Used in delusional blocks.
Clause 1.4 Standard ATX. The standard indicates the presence of the wires necessary for connection. It's better to take no lower ATX 2.3 since they install additional connectors for video cards - 6+6 pin 6+8 pin 24+4+4

, motherboard

1. Clause 1.5
You should always pay attention to the specified block data. Extremely important! BP Pay attention to the rated power
, not peak.

2. Nominal power is the power that is constantly supplied. Whereas the peak one is issued for a short time. BP Power on the channel should be.
+12V The more there are, the better. There are also several channels:.

+12V1, +12V2, +12V3, +12V4, +12V5
Example: 1. Power supply from

ZALMAN.
It has one +12V line, total 18A and only 216W.

Active PFC is used, which is a big plus. +12V (15A and 16A). Although the manufacturer indicated on the sticker 500 Watt, in "face value" only 460 Watt.
Quite a high-quality block in the budget segment.

3. Another one from 1. Power supply from