VP Series in the Ante Because Power Supplies initial level, and VP700P with a value of 700 W - the most powerful one. But the initial level does not mean low. If you focus on the data provided by the manufacturer, then all the necessary qualities at the ANTEC VP700P in stock: a two-year warranty, a small but sufficient set of connectors, active PFC. The device corresponds to the ATX12V 2.4 specification, according to which BP must provide stable work With an extremely small load on the tire + 12V. Such a requirement arose due to the advent of low-voltage modes C6 / C7 in haswell processorsin which the current of the current on the CPU falls to the level of 0.05 A.

The block does not have a certificate of 80 Plus, although it can be said that according to the declared efficiency of 88%, the device satisfies the Bronze category. The reason is simple: to match any 80 Plus, the ability to operate in networks with a voltage of 110 B is required, which for simplifying the ANTEC VP700P schemes is deprived. The only thing that confuses: the manufacturer only indicated the maximum efficiency of the efficiency. How things are in reality - we will check in tests.

Most of the power belongs to two lines + 12V - 636 W in the aggregate. In this case, the load on each of them separately cannot exceed 35 A.

The average cost of ANTEC VP700P in Moscow online stores is 3.5 thousand rubles. It is a bit for a capacity of 700 W: For less than the amounts are mainly sold, various NO-NAMEs or products recognizable, but not too well-deserved in the market sources of power supply manufacturers.

Antec VP700P.
Connecting cables	Non-removable
Nominal power	700 W.
Cooling system	Fan 120 mm
Input parameters	200-240 V, 5 A, 50-60 Hz
CPD declared	Up to 88%
Certification 80 Plus.	Not
Conformity	ATX12V 2.4.
Output parameters	+ 5V 20 A + 12V 35/35 A -12V 0.3 A. + 5VSB 3 A
Load distribution	+ 3.3V & + 5V< 120 Вт; +12В < 636 Вт
Protecting output tires	UVP (protection against stress reduction) OVP (Protection against Voltage Excess) OCP (Current Excess Protection)
PFC.	Active
Dimensions (DHVHG), mm	150x86x140.
Mass, kg.	1,6
Default on failure (MTBF), h	100 000

⇡ Delivery set, design

The only neighbor of Antec VP700P in its simple and compact package is a power cable. Well, what else do you need from PB, if you do not want to overpay?

Antec VP700P: "Cell" rear panel Well blows out

The block itself is performed in the unpretentious design housing. Cables come out of BP with a single beam: 24-pin "hose" in a decorative braid, the rest - as it is. A set of connectors:

• 1x24 (20 + 4) contact;
• 1x8 (4 + 4) contacts (CPU power);
• 4x8 (6 + 2) contacts (optional PCIE fees);
• 6 x SATA;
• 4 x molex;
• 1 x floppy.

⇡ Internal device

BP components are cooled by a 120 mm sizzy fan. The manufacturer - Yate Loon, model - D12SH-12 (sliding bearing, the maximum speed of rotation of the impeller is 2200 rpm).

Antec VP700P: Connecting a cooler to the board is performed by two wires.

The fee (produced by FSP) has a very "old school" scheme engineering, which are noticeable traces of savings on components, but without explicit hack. As the outside, inside the Antec VP700P is present everything you need. The quality of assembly and soldering - without a bitch without a zadyrinka.

Antec VP700P: In the active PFC scheme, the Capxon Condenser is used

The inlet uses a two-bond filter of electromagnetic interference of the simplest, but quite sufficient design. There is a fuse and a varistor that protects the device from short-term voltage bursts.

The rectifier is assembled from individual diodes with a nominal value of 3 A, which in the aggregate gives the power limit at the inlet of 1380 W at a voltage of the network 230 V. It is bad only that, in contrast to integrated rectifiers, which are used in more expensive BPs, the diodes are not equipped with a radiator. Recall once again that the ANTEC VP700P can only work on networks with a voltage of 200-240 V. Support 110V climbed in order to save.

Antec VP700P: The first pair of capacitors CY input filter is dispersed on the power connector contacts

The voltage converter is built by a common sector topology with two key transistors (TWO-Switch Forward). The transformer has two secondary windings for tires 12 and 5 V - in contrast to BP with more modern devicethat use the only secondary winding in combination with dC-DC converters To output voltages 5 and 3.3 V. Voltage 3.3 V is taken with the same winding as 5 V, by means of a pattern with a saturated choke (Magamp).

Rectifiers in three tires use paired assemblies of Schottky diodes. Synchronous rectifiers on field transistorsHaving a higher efficiency remain the prerogative of more expensive BP. The 12 bus tire is equipped with four buildings in parallel connections, two others got one. The pulsation filter on each bus is replicated and the only electrolytic condenser produced by the same Capxon capacity of 1000 μF. Here, Antec was very praised: at least twice the capacitors are used in more expensive models, as a rule, several pieces on the tire are used.

The phenomenon of two lines of 12 V, which are declared in block specifications, is reduced to the fact that the wire bundle for powering the CPU has a filter separate from the rest. In addition, it is possible that the second tire is equipped with one of the four channels of the Silicon Touch PS229 monitoring chip, which provides protection against critical / high voltage on tires and excess current in the load.

ANTEC VP700P: Capxon Capacitors with a capacity of 1000 μF in secondary circuit filters

Tire 5 V has no additional stabilizer in addition to the group stabilization throttle, which serves three main tires together. Tire 3.3 V is equipped with its stabilizer on a saturated choke. Therefore, on the perfect stabilization of stresses with the load, peashed to one or another tire, it is not necessary to calculate. True, there are such a load, say softly, infrequently.

⇡ Testing technique

Since our last articles on the power blocks, the test method used in the 3DNews laboratory has not changed. You can familiarize yourself with it in full, for example, in this article. The graph, which is based on the results of the study of the efficiency of the test power supplies, contains reference indicators according to the standards of the 80 Plus family.

Test results

The test with a combined load is best transferred to the bus 12 V. with any current ratio between the tires 12 V and 5 / 3.3 in the voltage on it remain within the limits allowed by the ATX standard (deviation no more than 5%). Not perfect, but quite acceptable result.

But further - a pleasant surprise: Antec VP700P unexpectedly for its modest positioning showed an efficiency of 88% by the manufacturer with a capacity of 700 W, and with a reduced load, this indicator reaches 94% at all. Only at 10% of the power there is a failure of graphics up to 78%.

⇡ Conclusions

The manufacturer pretty saved both on external signs and in the block circuitry, but nothing really necessary for BP has lost and in the tests performed much better than it could be expected. The capacity of the block is quite enough for powerful computer with one or even two, but not exemplaryly voracious, graphic cards.

From the claim characteristics, the claims arose only to the stabilization of the tires of 5 V and 3.3 V, but in the modern computer, they are unlikely to be loaded so much so that the stresses come over for the permissible framework. In addition, in the block, weak pulsation filters, although it is manifested in practice - we did not check.

The most important thing is that with preservation normal stresses On all the ANTEC VP700P tires, it gives a power close to the nominal, and does not have any blatant flaws in circuitry. For so low cost It is already very good. In the end, the inexpensive BP rarely fall into the focus of the attention of test laboratories, and in relation to Antec VP700P it is now known that it can be expected from him, and which is not worth it.

According to the generally accepted definition, computer block Nutrition is a power component of the system that provides the remaining PC elements. From the point of view of circuitry, BP is a module for conversion alternating current 100-127V power network (USA, Japan and Taiwan, as well as places in South America) or 220-240V (Europe and most other countries of the world) d.C. With voltage levels acceptable to powering computer components.

The power supply is only one of the components of the computer system, therefore its key characteristics are determined as one of the numerous recommendations for systems of a certain form factor, and not vice versa. For example, it is the standard ATX (Advanced Technology Extended), developed by Intel in 1995, determines the dimensions and other characteristics of the power supply, and non-BP defines the form of ATX systems.

Initially, power supplies designed to work in desktop computer systemsFor the most purpose, it was calculated according to the requirements of the ATX12V standard. So it was up to the version of the standard ATX12 V. 2.2 (issued in March 2005), after which it was decided to unite in unified document Requirements for all generally accepted desktop platform form factors, including CFX12V, LFX12V, ATX12V, SFX12V and TFX12V. Over time, a document appeared " Design.GuideforDesktop.Platform.FormFactors., Revision 1.1 "(March 2007), relevant to this day.

For reference: Computer Forms are determined mainly by the format system PlastepsThe dimensions of some of them are shown below millimeters:

• WTX - 356x425
• AT - 350х305
• Baby-at - 330x216
• BTX- 325x266
• ATX-305x244.
• LPX - 330x229
• microbtx - 264x267
• microATX - 244x244.
• microatx (minimum) - 171x171
• Flexatx - 229x191
• MINI-ITX - 170x170
• Nano-ITX - 120x120
• Pico-ITX - 100x72
• PC / 104 (-plus) - 96x90
• mobile-ITX - 60x60

Thus, if you see a mention of "compliance with the ATX12V 2.3 standard compliance with the power supply unit, keep in mind that there is no such document in nature. The latter, separately submitted by the document was ATX12V 2.2, and the marking of the version "2.3" means compliance with the requirements of subparagraph "ATX12V SPECIFIC GUIDELINES 2.3" in the above-mentioned document on the design of desktop platform design, version 1.1, general for all desktop factors.

Despite the fact that ATX12V is only a subset among other PC form factors, speaking of desktop systems, we usually mean this particular standard. If, of course, it is not about the miniature "commemorations to the TV" to view video, compact office machine, server systems and other special cases that do not fit into the definition of home or gaming desktop system. Today we are talking about ATX12V power blocks.

It should also be noted that the publication of new standards for power supplies does not cancel previous recommendations and requirements, and, as a rule, only tightens them. Therefore, today we will study the ATX12V 2.2 standard, and in addition to it "ATX12V Specific Guidelines 2.3" from the document "Design Guide for Desktop Platform Form Factors, Revision 1.1".

The requirements of these documents can be called sufficient to select a BP model suitable for the design of the system as a whole, but if we talk about the design of a modern system, to compulsory consideration it is necessary to adopt at least one document - 80Plus recommendations.

And that's why.

One way or another, a portion of the power supply to the PC is dissipated directly by the power supply to the process of its operation. For example, the total energy consumption of the system of about 500 W and the efficiency of the level of the level of 75% in practice means that BP spends a quarter of energy consumed. About 125 W - And this is the power of a decent soldering iron, leave the BP on "heated" himself! If the BP has a higher efficiency - say, 87%, the cost of payment of electricity, as well as cooling the system, can be significantly reduced.

Another interesting example. Suppose you planned to buy a power supply "with a stock". Little ... The choice fell on the block of kilodatt power. The stock pocket does not pull? Maybe, but not in the case of power supplies. Imagine how the "lead" a power supply of 1 kW in the system, the maximum load of which even at the peak does not exceed 500 W, from force - 600 W. Rare modern system - Even on a 6-nuclear processor and a pair of powerful video cards, consumes greater power.

This work was sent to our "admissive" contest of articles and the author received a reward - Cooler Pentagram FreeZone QVC-100 Cu +, AMD mat and branded Site T-shirt.

Most often, novice users do not pay enough attention to the selection of high-quality components, and when choosing the case, they cares about the design of its front panel. Even if the buyer is interested in the power installed in the power supply housing (hereinafter referred to as BP), about low quality of cheap power supplies (whatever beautiful diquses were not drawn on them) no one will warn it. In the future, when an independent upgrade is replaced with a processor, a video card, the hard drive is purchased ... and the power supply remains the same, and when problems occur with the stability of the machine, it is not immediately remembered. The search for a more powerful BP begins, but in the arts on BP and by the near-computer conferences (by the efforts of individual small and irresponsible authors, as well as their readers) are a lot of surprise of the survivion myths. Some of them, this material will try to expose, and at the same time show the differences in the differences of a cheap BP from high-quality (not necessarily expensive).

advertising

In the network you can find quite a lot of articles on the theory of computer BP, their tests and refinement guides. This material is an attempt to give some generalized recommendations for the choice of BP without tests, according to characteristic external features. The very idea is inspired by this article.

Introduction

It is no secret that power consumption (and, accordingly, heat generation) PC components are constantly growing. TDP (maximum calculated heat generation) of modern desktop platforms is in the near future 130W (LGA755) and 125W (Socket AM2), respectively. The power consumption of top video cards has long been beyond the framework of permissible currents for both the AGP connector (40W) and for PCI EXPRESS. (75W) and reaches 120W (such video cards are equipped with additional power connectors), and the use of two video cards in SLI or CrossFire mode automatically doubles these requirements (lists of BP certified for SLI and CrossFire systems, see section). The transition DDR-\u003e DDR2 (with a decrease in voltage from 2.5-2.8V to 1.8-1.9V and the reference frequencies is twice) slowly compensated by increasing frequencies (and stresses - in overclocker modules).

The power supply is one of the most important links that make up the computer. Without it, no component will earn. At the same time, too little attention is paid to the power supply.

Why is the power supply so important? The reason is simple: each component in the computer depends on stable power - only then everything will work without failures. Any, even a short voltage change can lead to the collapse of the system and the failure of the components, but many users do not even think about it. When the PC becomes unstable, users often blame too aggressive memory delays, "acceleration" graphic card or processor. But the power supply is one of the most problematic components! That is why our laboratory could not get around his attention.

ATX12V 2.01 - New Specification

Today in the world of PCs there is a certain revival: the scene came out tire PCI. Express, memory DDR2 and Serial ATA, as well as many other new technologies. Among them, almost imperceptibly, the standard ATX12V 2.01 is shown, which is designed to replace ATX 1.3.

Probably the most notable change was the new ATX plug, which now received 24 contacts instead of 20 on the previous version.

ATX classic plug (left) and a new ATX 2.0 plug (right).

Adapter from 24 to 20 contacts.

And a smart alternative is a separate block with four contacts.

Four new contacts are the +12 V lines, +5 V, +3.3 V and additional "land". Thus, the old connector AUX goes into oblivion - new standard It no longer supports. The layout of the remaining 20-contacts has not changed, that is, the two standards are compatible, but with some limitations. To use a power supply with a 24-pin fork on an old motherboard, you will need an adapter. However, most power supplies are included in the package. The reverse configuration is also possible, since the 20-pin plug is included in the 24-pin connector.

However, the mechanics are not always successfully concluded with electronics. The manufacturer itself decides, which combination can be used, and what - no. Some boards use an additional 4-pin Molex socket as on optical drives or hard drives to which the corresponding power supply plug is connected. In general, always read the instructions for the motherboard before installing.

It is mechanically connected, but does not work. So solved the manufacturer of the motherboard.

Also in the ATX12V 2.0 standard there appeared a mandatory connector power SATA. He has already met in Standard 1.3, but now has become obligatory. So it is time to say goodbye to power adapters for SATA hard drives. Moreover, they are very uncomfortable, as practice shows. But the ATX standard does not specify the number of SATA power connections.

No longer needed: SATA adapter.

SATA power connectors running directly from the power supply. Present both a straightforward fork and angular.

CONTENT

There are such forms of power supplies such: TFX, SFX, PS3 / ATX and ATX.
ATX is the most common sizes of power supplies that are used in the predominant majority. personal computers. Dimensions (VCHHHH): 8,6x15x14 cm.
PS3 / ATX - ATX type variety is different compact dimensions Thanks to the reduced depth. The depth depends on the power supply model - the range from 10 to 13.9 cm.
SFX - compact size power supplies are designed for small PCs or home theaters. Using a special SFX adapter can be installed in the ATX case. Dimensions (VCHHHH): 5.15x125x100 cm.
TFX - This samples is used in low height or non-standard shape housings. Dimensions (VCHHHH): 6,5х8,5х17,51 cm. Depending on the BP model, the depth may be less.

Power
from 120 to 2400 W
The power supply has a given power.
This parameter is most important for power supplies. However, than the system is more powerful, the energy consumption is more.
For computers used in offices, the capacity of 300-400 W is quite enough, but the powerful PC for gamers will require 450-600 W. The power supply capacity of more than 650 W is needed for top configurations with two video cards.

Cooling system
View of the cooling system of the power supply system. Today, power supplies are made with one, with two fans, as well as those where the fans are missing - non-fan.
The most common cooling system is with one fan. IN budget models 80 mm fans are installed, these fans are unchecked up to several thousand rpm, minus - they are very noisy. In more expensive models, fans are installed a much larger diameter - more than 120 mm.
Sometimes the second fan is embedded in powerful power supplies, the cooling efficiency is, of course, increases, does not significantly increase the noise level.
In non-fend power supply units in order to dispel heat, only radiators apply. The advantage of this type of power supplies: they are completely silent. Disadvantages - big value, as well as capacity limit ( this system Cooling cannot fully cool powerful power supplies). Today, power blocks that do not have fans do not exceed 600 W.

Diameter fan
from 14 to 180 mm
The diameter of the fan installed in the power supply unit.
Usually, the fan characterized by a large diameter operates on smaller turnover, and, accordingly, produces a smaller noise level (cooling efficiency does not change). If you need a quiet ventilation system - buy power supplies with a fan, the diameter of which is at least 120-140 mm.

The diameter of the second fan
from 40 to 80 mm
The diameter of the second fan installed in the power supply.
Usually, the fan characterized by a large diameter is cooled by working on smaller turnover, and produces less noise (the cooling efficiency does not change).

Fan rotation speed
The speed of rotation set in the fan power supply.
Than this value is greater, the stronger the fan is noise. In many powerful blocks Power there is a function of automatically changing the fan rotation speed depending on temperature, this feature Helps lower noise level.

PFC.
The method of correction in power factor power factor (PFC - POWER FACTOR CORRECTION).
The power factor is called the value obtained as a result of the fission of active power (the power that goes to useful work) To the resulting power. Than power factor closer to one, the better. Two ways of correction of power coefficient are developed - a passive method and active. The active method of correction is much better, because the power coefficient with it reaches a large value - 0.95-0.99, and with a passive method of correction - only 0.7-0.75. A large power factor is needed by those who have low-power UPS, because to ensure the functioning of the power supply with passive PFC, it is necessary much more powerful (about a third) of the UPS than to ensure the functioning of the power supply of the same power, however with the active PFC. By the way, power supplies characterized by active PFC are not so sensitive to reduced voltage on the network.

ATX12V version
from 1 to 2.52
Supported by the power supply version of the ATX12V standard.
ATX12V Standard is a list of specifications that defines the design of the power supply. This standard was introduced after the Pentium 4 processor was released. The main difference from the former standards is a significant increase in capacity over the +12 V line (up to pentium processor 4 Feeding to power processors was carried out along the +5 V) line. The main differences of the standards
1.3 - It is necessary for a 20-PIN power connector for the power board, as well as the presence of an additional 4-Pin power supply connector for the processor. Current on the +12 V - minimum line 10 A.
2.0 - It is necessary for the 24-PIN power connector for the 24-PIN motherboard, as well as the presence for the processor of an additional 4-PIN power connector. Mandatory presence of at least 2 lines + 12V.
2.2 - It is necessary for the motherboard 24 (20 + 4) -pin power connector, as well as the presence for the processor an additional 4-Pin power connector.

Version TFX12V.
from 1.3 to 2.4
The power supply supports TFX12V standard. The Thin Form Factor standard was designed for small-size systems in 2002 by Intel. For the power supply, a narrow elongated form is characteristic. 180-300 W - Typical power of BP.

EPS12V support
The power supply supports EPS12V standard.
This standard is for the entry-level servers. Firms that produce power supplies for home computers mention this standard In order to emphasize the reliability of its products.

Certificate 80 Plus.
The correspondence of the power supply is one of the levels of certification implies the compliance of this model with certain power consumption standards (the efficiency of the power supply should be at least 80%). The higher the level of certification, the more effective the power supply.

Connectors

Motherboard Connector Type
View of the connector for the motherboard. Motherboard through this connector serves meals. In modern motherboards, a 24-PIN connector is used, in old motherboards there was a 20-pin connector. In many products manufactured today, there is a collapsible 24-pin connector (20-PIN + 4-PIN), it is needed to establish compatibility with old motherboard.

Number of 4-PIN CPU connectors
from 1 to 2
Number of 4-PIN CPU connectors.
Through this connector on the processor, additional nutrition is supplied. 4-PIN CPU connector equipped great amount Motherboards manufactured today (about half).

Number of connectors 4 + 4 PIN CPU
from 1 to 2
Number of connectors 4 + 4 PIN CPU.
Through this connector, additional power is supplied to the processor. This connector is collapsible, it is compatible and motherboards having an 8-PIN CPU connector and with motherboards having a 4-PIN CPU connector.

Number of 8-PIN CPU connectors
from 1 to 2
The number of 8-PIN CPU connectors.
Through this connector, additional power is supplied to the processor.

Number of 6-PIN PCI-E connectors
from 1 to 20
The number of 6-pin PCI-E connectors.
Powerful video cards produced today need additional nutrition. The feed on the power card is made through the 6-pin PCI-E connector.
If you plan to collect Crossfire or SLI system, then additional connectors will be useful to you.

Number of connectors 6 + 2-PIN PCI-E
from 1 to 20
Powerful video cards produced today need additional nutrition. The feed on the video card is performed through a connector 6 + 2-PIN PCI-E.

Number of 8-PIN PCI-E connectors
from 1 to 8
The number of connectors 8-PIN PCI-E.
Powerful video cards produced today need additional nutrition. For feeding on the power video card, an 8-pin PCI-E connector is used.
If you have conceived to collect Crossfire or SLI system, then you will use additional connectors.

Number of 4-Pin IDE connectors
from 1 to 16
Number of 4-PIN IDE connectors.
Thanks to this connector on hard drives and CD / DVD drives that have an IDE interface, power is supplied.

Number of 15-Pin SATA connectors
from 1 to 62
The number of 15-PIN SATA connectors.
Through the 15-PIN SATA connector on CD / DVD drives and hard drives with sATA interface Power is supplied.

Number of 4-Pin Floppy connectors
from 1 to 8
Number of 4-Pin Floppy connectors.
Thanks to the 4-PIN FLOPPY connector on the floppy disk drive, power is supplied.

Tok Power

Along line +3.3 in
from 4 to 40 a
The maximum value of the current for the line is +3.3 V.
In the previously manufactured PC, the main load accounted for tires +3.3 V and +5 V. However, with the introduction of Pentium 4, the main consumer of energy became the tire +12 V. That's why today the current over the line +3.3 is not particularly important, because all the power supplies are now It has sufficient power on this tire.

Along line +5 in
from 5.3 to 52 a
Maximum value of current strength along line +5 V.
In the previously produced personal computers, the main load was on the tires +3.3 V and +5 V. However, after the introduction of Pentium 4, the main consumer of electricity was the tire +12 V. Today the current on the line +5 B is not greater importance - all power supplies are characterized by sufficient power in this tire.

Along the line +12 in 1
from 6 to 200 a
On the most "voracious" elements modern computers - on the processor and video card - the power is supplied via a +12 V. bus for this reason than the current on this tire will be more, it will be better.
Usually, the +12 tire is divided into several lines for security purposes.

Along the line +12 in 2
from 7 to 85 a
The maximum value of the current for the first line is +12 V.
The processor and the video card takes place power in the bus +12 V. than the current on this bus will be greater, the better.
For security purposes, the +12 tire is divided into several lines.

Along the +12 in 3
from 6 to 45 a
Maximum value of current for the third line +12 V.
On the tire +12, the diet is supplied to the video card and the processor, these components are the most "voracious". The larger current is fed through this tire, the better.
As a rule, the +12 tire is divided into several lines.

Along line +12 in 4
from 8 to 45 a
The maximum value of the current for the fourth line +12 V.
On the tire +12, the diet is sent to the video card and the PC processor, these are the most "voracious" elements. Therefore, than the bus flows a larger current, the only better.
Usually, the +12 tire is divided into several lines for security purposes.

Along line +12 in 5
from 15 to 30 a
The maximum value of the current for the fifth line +12 V.
The tire +12 B serves power to those components of modern PCs that most consume energy. Therefore, the current, which goes over this bus, the better.
Tire +12 is usually divided into several lines to improve security.

Along line +12 in 6
from 17 to 30 a
The maximum value of the current for the sixth line +12 V.
By tire +12, the power is supplied to the most "voracious" components of personal computers, so the current that goes on this bus more, the better.
This tire is usually divided into several lines for security purposes.

Along the line +12 in 7
Maximum current for the seventh line +12 V.

Along line +12 in 8
from 0.3 to 0.3 a
Maximum current over the eighth line +12 V.
By bus +12 B supplied to the processor and the video card - the most "voracious" components of modern PCs. Therefore, the more current on this bus, the better.
As a rule, for safety purposes, the +12 B is separated into several lines.

On line -12 in
from 0.1 to 300 a
The maximum value of the current for the line -12 V.
Voltage -12 V is required for the work of COM ports.

Along line +5 in standby
from 0.5 to 12.5 a
The maximum value of the current strength along the +5 line in SB.
Tire +5 in SB (Standby) is required for the implementation of such functions as the inclusion of the PC on the modem, by local networkBy pressing the button on the mouse or keyboard, still for the Suspend-to-Ram mode.

Noise level

Minimum
from 2 to 34 dBA
The minimum noise level created by the cooling system during the operation of the power supply. The lower the value of this parameter, the more comfortable work will be. But it should be noted that in most computers the main noise does not come from the power supply, but from the processor cooler.

Maximum
from 5 to 45 dBA
The noise level that creates the cooling system during the operation of the power supply.
The value of this parameter below, the more comfortable work for the PC. However, it should be said that in many PCs the main noise comes at all from the power supply, but from the processor cooler. The noise level is measured in dBA. Measuring the noise level in dB is slightly incorrect, because the human hearing apparatus is arranged in such a way that the volume perceived by the ear depends on both the sound pressure level and from the frequency of the incoming sound. The volume into the dBA is the perceived volume, that is, the magnitude of the sound pressure, which takes into account the features of the structure humorcraft man.

Input voltage

Minimum
from 85 to 230 V
The minimum input voltage value that supports the power supply. The stress in the network in different countries is different: 220 volts are considered to be a standard in Europe and Russia, in Japan or USA - 110 volts. Universal BP allow you to maintain the input voltage in certain ranges (the range depends on the device model).

Maximum
from 220 to 280 V
The maximum input voltage value that supports the power supply. The stress in the network in different countries is different: 220 volts are considered to be a standard in Europe and Russia, in Japan or USA - 110 volts. Universal BP allow you to maintain the input voltage in certain ranges (the range depends on the device model).

Additional Information

Unfastening cables
Unused cables can be disseminated, then they will not interfere with the PC assembly, connecting new devices to it.

Protection against overvoltage
In the power supply, there is a function protection function from overvoltage.
If the output voltage is more permissible, then this function will independently turn off the power supply, it will save the computer components from the brave.

Protection against overload
In the power supply, there is an overload protection function.
If the current at the output will be more permissible, then the function will independently turn off the power supply, this action will save the computer components from the brave.

Short circuit protection
The power supply has a short circuit protection function.
If a short circuit occurs, the protection system will instantly disable the power supply, while saving all the components of the computer and the block itself from the brave.

Color backlighting
The backlight installed in the power supply will give your computer individual design. There are models with different backlight colors.

Power supply color
The main color of the power supply body. As a rule, computer equipment is performed in neutral calm colors, most often it is black, white or silver devices that harmoniously fit into any interior.

Gabarits.

Width
from 20.5 to 360 mm
Width of the device.

Height
from 19 to 190 mm
Height of the device.

Depth
from 2 to 360 mm
Depth of the device.

Weight
from 0.4 to 140 kg
Weight device.