Блок питания corsair vs450 с активным pfc стандартом 80 plus защитой от перегрузки и замыкания
В очередном материале, созданном по массовой методике тестирования БП, мы продолжаем изучение 450-ваттных моделей. Все участники обзора выпущены под известными брендами и широко представлены в розничной продаже. Стоит проверить, на что способны устройства среднего класса.
VS Series™ VS450 — блок питания 450 Вт, сертифицированный по стандарту 80 PLUS® White (UK)
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Серия CORSAIR VS Series создана наиболее надежным на рынке блоков питания производителем и сочетает доступную цену с подтвержденной сертификатом 80 PLUS эффективностью.
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CORSAIR VS450 создан наиболее надежным на рынке блоков питания производителем и предоставляет подтвержденную сертификатом 80 PLUS эффективность по доступной цене.
Источник питания VS450 гарантированно обеспечивает 450 Вт номинальной мощности. Блок питания оснащен универсальным входом и способными поддерживать широкий диапазон сетевого напряжения (100–240 В переменного тока) компонентами электронных цепей. Для того чтобы вы могли не беспокоиться о своей системе, в устройство добавлено несколько цепей защиты электропитания. Благодаря одной специализированной линии +12 В вы не столкнетесь с трудностями балансировки нагрузки компонентов на нескольких кабелях питания.
Черные кабели, кабельные муфты и разъемы позволяют создать отлично выглядящий ПК, а сверхкомпактный корпус блока питания с глубиной 125 мм обеспечивает максимальную совместимость с корпусами практически любых современных компьютеров.
Благодаря системе терморегулирования 120-миллиметровый вентилятор вращается только при необходимости, однако и при полной нагрузке уровень шума остается низким. Блок питания VS450 имеет подтвержденную сертификатом 80 PLUS высокую эффективность, благодаря которой он вырабатывает меньше тепла, что способствует экономии электроэнергии.
На блок VS450 предоставляется полная гарантия на три года а также доступ к знаменитым службам технической поддержки и обслуживания клиентов CORSAIR.
Using Link with a Corsair AXi Digital Power Supply
The Corsair AXi Series PSUs have a lot of premium features. They use a digital signal processor for better performance, they're fully modular, and have a zero RPM fan mode at low loads. But one of the coolest things about the AXi power supplies, is their compatibility with the new Corsair Link software. Today, we take a look at the Corsair Link 2 software, or just "Link" for short, and more specifically how it gives you the ability to monitor AC input, DC output, the temperature and the fan speed of an AXi power supply.
The first thing I want to do is open up the "Graph" tab and set what I want to monitor in the "Config Panel" of this tab.
Above, you can see that I've checked boxes asking to have my two graphics cards' temperatures and fans graphed, as well as my CPU's temperature, the temperature of my AX860i power supply, as well as the AX860i's fan speed. I'm also monitoring the temperature of the coolant in the Hydro Series H100 that is cooling the CPU and the RPMs of the two fans cooling the H100's radiator.
While the system is idle, we can see that temperatures are relatively low. The AX860i is just barely over room temperature and therefore, the fan is not spinning.
Over on the "Power" tab, we see that the AX860i is only producing 107.3W as I sit here watching the Link software. It's pulling 117.8W from the wall, so our efficiency is 91%.
On this tab, we can also monitor our voltages, including the voltage of our AC mains, as well as current for each of our +12V outputs.
Finally, we see the AX860i's temperature and the fan RPM on this tab. This is the same information we saw on the "Graph" tab, but in a different format. The fan is still not spinning because the temperatures are still low, but if we wanted to increase the airflow within our chassis just a bit, we can manually turn the fan speed up.
We start on the "System" tab.
On this tab, we can see everything that Corsair Link 2 monitors, but if we click on the "AX860i Fan" icon on the left, a configuration panel opens up on the right. By default, we can see the fan mode is set to "quiet" which means the fan isn't going to spin at low loads. Changing this is easy.
The lowest setting is 40%, which equates to about 784 RPM. I can keep it like this and still not hear the fan. And the fan will still ramp up even faster automatically if needed. Let's turn it up even more to find out where I can start hearing the fan.
At 76%, the fan is spinning 1508 RPM. I can definitely hear that now. Well, that's enough of that. Let's put the PSU fan back into "quiet" mode, fire up Prime95 and Furmark and see what kind of power we produce and let the fan spin up all on its own.
Almost immediately, the temperatures of the CPU and graphics cards increase. Under this load, we start to see the power supply fan ramp up as well.
After some time under load, we see our temperatures level out, an increase in the graphics cards' fan's RPMs and the PSU's fan leveling off just over 500 RPM.
When we switch back over to the "Power" tab, we can see that our load has increased to 473.4W. We're now pulling 502.9W from the wall and our efficiency is increased to 94%. We can see that the amperage delivered on all of our +12V connectors has increased, the AX860i's temperature has increased very slightly, from 26.5 to 28.8°C, and the fan is now spinning at 556 RPM.
Of course, when you're gaming you're probably not going to be able to watch your load, temperatures and fan speeds while you're playing. For this reason, Corsair Link allows you to log whatever information you'd like to keep track of in a CSV file. Simply check the boxes of the components you want to monitor, browse to where you want to save the file and give the file a name and click "start logging".
В очередном материале, созданном по массовой методике тестирования БП, мы продолжаем изучение 450-ваттных моделей. Все участники обзора выпущены под известными брендами и широко представлены в розничной продаже. Стоит проверить, на что способны устройства среднего класса.
Corsair VS450
Блок питания Corsair поставляется в картонной коробке сходных размеров – 260 х 185 х 95.
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Информативность неплоха, на коробке приводится несколько изображений блока, его краткое описание и таблица мощностных характеристик.
К надежности упаковки нет никаких претензий – корпус БП защищен «пузырчатым» пакетом, шнуры зафиксированы проволочными стяжками.
В комплект поставки входит инструкция, шнур питания и крепежные элементы – типичный набор, в этом плане Corsair VS450 не отличается от рассмотренного выше Chieftec CTG-450-80P.
А вот сам блок Corsair смотрится солиднее. Корпус окрашен в черный цвет, шнуры снабжены дополнительной оплеткой. Минус конструкции – несъемная решетка, накрывающая вентилятор, она выштампована прямо в стенке корпуса.
Размеры блока – 149 х 139 х 86 мм, масса – 1355 г. Он выполнен по стандартной (немодульной) схеме и снабжен кнопкой отключения питания.
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Блок оснащен вентилятором типоразмера 120 х 25 мм. По форме крыльчатки семилопастные вертушки Chieftec и Corsair почти идентичны.
А вот по мощностным характеристикам продукт Corsair заметно превосходит оппонента. Линия 12 В у этого БП только одна (что, на мой взгляд, можно расценивать как плюс), ограничение по силе тока на ней составляет 34 А, мощность 408 Вт. В отношении к номиналу блока показатель достигает 90.7% – отличная цифра!
Сила тока на каналах 3.3 В и 5 В может достигать 16 А. Максимальная суммарная нагрузка – 100 Вт. Блок не сертифицирован по стандартам 80 PLUS.
Очень заметно преимущество Corsair и по количеству разъемов. Во-первых, этот блок оснащен полноценными составными ATX Mainboard 20+4-pin и CPU 4+4-pin. Длина шнуров составляет 450 и 550 мм.
Во-вторых, куда солиднее и набор разъемов для видеокарты. VS450 снабжен двумя коннекторами PCI-e 6+2-pin – наилучший вариант для качественного 450-ваттного блока, эта модель может использоваться даже в системе с топовой видеокартой. Длина шнура, на котором смонтированы оба разъема, составляет 600 мм.
А вот по количеству разъемов для периферии преимущество не столь значительно: четыре SATA, четыре Molex и два Floppy. Длина шнуров – 700 и 820 мм.
В целом же VS450 производит лучшее впечатление, нежели продукт Chieftec. Этот блок обладает более высокими мощностными характеристиками и, вдобавок, обходит конкурента по количеству разъемов. С учетом предельно близкой стоимости устройств – это очень весомые плюсы.
Подпишитесь на наш канал в Яндекс.Дзен или telegram-канал @overclockers_news - это удобные способы следить за новыми материалами на сайте. С картинками, расширенными описаниями и без рекламы.
Участники тестирования
Оглавление
ДОКУМЕНТАЦИЯ
Understanding the Corsair AXi Series Digital Power Supplies
Replacing commonly used ICs with a digital signal processor in the Corsair AXi Series PSUs has many benefits. Today, I'm going to explain the functions of the components that are replaced within the Corsair Digital power supplies and how these changes benefit the end user.
The parts of the Corsair AXi Digital Power Supply that makes them unique when compared to other desktop power supplies is the absence of a PFC/PWM controller IC (integrated circuit) on the power supply's primary side and a supervisor IC on the power supply's secondary side. Both of these parts have been replaced with DSP, which stands for "Digital Signal Processor".
AXi PSUs still use what's called a "resonant mode" topology like a lot of modern day super-efficient power supplies, but typically in other resonant mode PSUs a PWM controller IC changes the power supply's switching frequency based on an analog signal derived from the load measured at the transformer. This makes the power supply more efficient at a wider range of loads compared to other power supply topologies, but doing this alone can affect ripple and noise and voltage regulation.
The resonant mode controller, shown above, is just about the only IC you'll find in an AXi power supply that you may also see in other high end power supplies.
The supervisor IC is the heart of the power supply's safety functions. Functions like OCP (over current protection, which is protection from any one output drawing too much current), OPP (over-power protection, which prevents overloading), OVP (over-voltage protection, which measures if voltage goes too high), UVP (under-voltage protection), and SCP (short circuit protection). Temperatures are also measured within the power supply and this is reported to the IC's OTP (over-temperature protection). If any value programmed into the IC is exceeded, the IC is instructed to shut down the power supply.
Above is a supervisor IC found in a Corsair GS800 power supply.
In an effort to improve voltage regulation (drops in voltage as loads increase), the information concerning the power supply's output voltage is sent back to the PWM controller via an analog signal. This information moves relatively slow when compared to the ever-varying loads of your typical PC, so voltage regulation is still not as good as it can be.
Above is the PWM/PFC controller from a Corsair GS800 power supply.
AXi power supplies improve on this analog system by using the DSP. Like a supervisor IC, the DSP measures all of the pertinent information on the secondary side, as well as taking the same measurements on the primary side as your typical PFC/PWM controller IC. This information is also analyzed by the DSP's microprocessor and adjustments are made to the different components of the power supply in an effort to improve efficiency while maintaining very tight voltage regulation and minimizing ripple and noise. Because the signals are digital instead of analog and an inherently homogeneous DSP system is used to analyze the information as opposed to multiple ICs, adjustments can be made much faster than can be made with the typical set of ICs found in other desktop power supplies. And since the DSP is analyzing all of the same outputs (and then some!), the DSP still has the ability to act as a supervisor IC and shut down the power supply if any values exceed what is considered "safe" for the power supply or your computer.
Here is an AX860i removed from the housing. This one PCB has all of the chips that are part of the DSP system.
Let's zoom in on some of the chips on this PCB. Shall we?
Above is a picture of the Freescale Digital Signal Controller found in the AXi series of power supplies. This chip handles what goes on on the primary side of the power supply.
This guy is responsible for the PFC (power factor correction) control, the PMW (pulse width modulation) control, monitoring of the AC input's voltage, current and wattage and logical on/off control, like shutting down for inrush, brownouts, etc.
Above we see two more ICs found inside an AXi series power supply. The chip on the bottom is the main MCU, or "MCU I". The chip on the top is a USB MCU, or "MCU II". These guys handle what goes on on the secondary side of the power supply.
The MCU I does what we call "housekeeping". It has a lot of the same functions as a supervisor IC in an analog controlled PSU. Things like OCP, OPP, OVP, etc. are all monitored by this chip. This chip also handles the PMBus (power management bus) and thermal monitoring and fan control. The MCU I also monitors the power on (soft on/off) and power good signals coming from the motherboard. On top of all of this, the MCU I also monitors the DC output for voltage drop, ripple and noise and communicates back to the DSP to address any issues that may come up.
The MCU II is the chip that allows the user to turn on/off the single/multiple +12V rail capability of an AXi PSU via the Corsair Link software. The self test function is also controlled by this chip.
Since the DSP accumulates all of this information about the power supply, and does so in real time, we can deliver it to the end user via our Corsair Link software. Power supplies have attempted to deliver similar information about the power supply to the end user in the past; either via software or displayed on a 5.25" bay LCD. But since the information about the power supply in these older units was accumulated via the PFC/PWM controller and supervisor IC, the information had to be converted to a digital signal before being displayed. This adds a good deal of cost and prevents the information from being delivered as close to real time as possible.
Using Corsair Link, we can monitor everything from AC input voltage, output wattage. even the current being delivered to each graphics card's PCIe controller! Above you can see I've enabled OCP on each modular connector (essentially making the AXi a multiple +12V rail power supply) and turned all of the limits down to 20A.
We can also keep track of the temperature inside the power supply and how fast the fan is spinning:
All in all, AXi Digital Power Supplies are so much more than your average desktop PSU on so many levels. By utilizing a DSP, Corsair offers improved efficiency while maintaining stable voltage output and minimizing unwanted ripple and noise. And because all of this information is maintained in a digital format, and output to the Corsair Link software interface is practically seamless!
ДОКУМЕНТАЦИЯ
Understanding the Corsair AXi Series Digital Power Supplies
Replacing commonly used ICs with a digital signal processor in the Corsair AXi Series PSUs has many benefits. Today, I'm going to explain the functions of the components that are replaced within the Corsair Digital power supplies and how these changes benefit the end user.
The parts of the Corsair AXi Digital Power Supply that makes them unique when compared to other desktop power supplies is the absence of a PFC/PWM controller IC (integrated circuit) on the power supply's primary side and a supervisor IC on the power supply's secondary side. Both of these parts have been replaced with DSP, which stands for "Digital Signal Processor".
AXi PSUs still use what's called a "resonant mode" topology like a lot of modern day super-efficient power supplies, but typically in other resonant mode PSUs a PWM controller IC changes the power supply's switching frequency based on an analog signal derived from the load measured at the transformer. This makes the power supply more efficient at a wider range of loads compared to other power supply topologies, but doing this alone can affect ripple and noise and voltage regulation.
The resonant mode controller, shown above, is just about the only IC you'll find in an AXi power supply that you may also see in other high end power supplies.
The supervisor IC is the heart of the power supply's safety functions. Functions like OCP (over current protection, which is protection from any one output drawing too much current), OPP (over-power protection, which prevents overloading), OVP (over-voltage protection, which measures if voltage goes too high), UVP (under-voltage protection), and SCP (short circuit protection). Temperatures are also measured within the power supply and this is reported to the IC's OTP (over-temperature protection). If any value programmed into the IC is exceeded, the IC is instructed to shut down the power supply.
Above is a supervisor IC found in a Corsair GS800 power supply.
In an effort to improve voltage regulation (drops in voltage as loads increase), the information concerning the power supply's output voltage is sent back to the PWM controller via an analog signal. This information moves relatively slow when compared to the ever-varying loads of your typical PC, so voltage regulation is still not as good as it can be.
Above is the PWM/PFC controller from a Corsair GS800 power supply.
AXi power supplies improve on this analog system by using the DSP. Like a supervisor IC, the DSP measures all of the pertinent information on the secondary side, as well as taking the same measurements on the primary side as your typical PFC/PWM controller IC. This information is also analyzed by the DSP's microprocessor and adjustments are made to the different components of the power supply in an effort to improve efficiency while maintaining very tight voltage regulation and minimizing ripple and noise. Because the signals are digital instead of analog and an inherently homogeneous DSP system is used to analyze the information as opposed to multiple ICs, adjustments can be made much faster than can be made with the typical set of ICs found in other desktop power supplies. And since the DSP is analyzing all of the same outputs (and then some!), the DSP still has the ability to act as a supervisor IC and shut down the power supply if any values exceed what is considered "safe" for the power supply or your computer.
Here is an AX860i removed from the housing. This one PCB has all of the chips that are part of the DSP system.
Let's zoom in on some of the chips on this PCB. Shall we?
Above is a picture of the Freescale Digital Signal Controller found in the AXi series of power supplies. This chip handles what goes on on the primary side of the power supply.
This guy is responsible for the PFC (power factor correction) control, the PMW (pulse width modulation) control, monitoring of the AC input's voltage, current and wattage and logical on/off control, like shutting down for inrush, brownouts, etc.
Above we see two more ICs found inside an AXi series power supply. The chip on the bottom is the main MCU, or "MCU I". The chip on the top is a USB MCU, or "MCU II". These guys handle what goes on on the secondary side of the power supply.
The MCU I does what we call "housekeeping". It has a lot of the same functions as a supervisor IC in an analog controlled PSU. Things like OCP, OPP, OVP, etc. are all monitored by this chip. This chip also handles the PMBus (power management bus) and thermal monitoring and fan control. The MCU I also monitors the power on (soft on/off) and power good signals coming from the motherboard. On top of all of this, the MCU I also monitors the DC output for voltage drop, ripple and noise and communicates back to the DSP to address any issues that may come up.
The MCU II is the chip that allows the user to turn on/off the single/multiple +12V rail capability of an AXi PSU via the Corsair Link software. The self test function is also controlled by this chip.
Since the DSP accumulates all of this information about the power supply, and does so in real time, we can deliver it to the end user via our Corsair Link software. Power supplies have attempted to deliver similar information about the power supply to the end user in the past; either via software or displayed on a 5.25" bay LCD. But since the information about the power supply in these older units was accumulated via the PFC/PWM controller and supervisor IC, the information had to be converted to a digital signal before being displayed. This adds a good deal of cost and prevents the information from being delivered as close to real time as possible.
Using Corsair Link, we can monitor everything from AC input voltage, output wattage. even the current being delivered to each graphics card's PCIe controller! Above you can see I've enabled OCP on each modular connector (essentially making the AXi a multiple +12V rail power supply) and turned all of the limits down to 20A.
We can also keep track of the temperature inside the power supply and how fast the fan is spinning:
All in all, AXi Digital Power Supplies are so much more than your average desktop PSU on so many levels. By utilizing a DSP, Corsair offers improved efficiency while maintaining stable voltage output and minimizing unwanted ripple and noise. And because all of this information is maintained in a digital format, and output to the Corsair Link software interface is practically seamless!
Using Link with a Corsair AXi Digital Power Supply
The Corsair AXi Series PSUs have a lot of premium features. They use a digital signal processor for better performance, they're fully modular, and have a zero RPM fan mode at low loads. But one of the coolest things about the AXi power supplies, is their compatibility with the new Corsair Link software. Today, we take a look at the Corsair Link 2 software, or just "Link" for short, and more specifically how it gives you the ability to monitor AC input, DC output, the temperature and the fan speed of an AXi power supply.
The first thing I want to do is open up the "Graph" tab and set what I want to monitor in the "Config Panel" of this tab.
Above, you can see that I've checked boxes asking to have my two graphics cards' temperatures and fans graphed, as well as my CPU's temperature, the temperature of my AX860i power supply, as well as the AX860i's fan speed. I'm also monitoring the temperature of the coolant in the Hydro Series H100 that is cooling the CPU and the RPMs of the two fans cooling the H100's radiator.
While the system is idle, we can see that temperatures are relatively low. The AX860i is just barely over room temperature and therefore, the fan is not spinning.
Over on the "Power" tab, we see that the AX860i is only producing 107.3W as I sit here watching the Link software. It's pulling 117.8W from the wall, so our efficiency is 91%.
On this tab, we can also monitor our voltages, including the voltage of our AC mains, as well as current for each of our +12V outputs.
Finally, we see the AX860i's temperature and the fan RPM on this tab. This is the same information we saw on the "Graph" tab, but in a different format. The fan is still not spinning because the temperatures are still low, but if we wanted to increase the airflow within our chassis just a bit, we can manually turn the fan speed up.
We start on the "System" tab.
On this tab, we can see everything that Corsair Link 2 monitors, but if we click on the "AX860i Fan" icon on the left, a configuration panel opens up on the right. By default, we can see the fan mode is set to "quiet" which means the fan isn't going to spin at low loads. Changing this is easy.
The lowest setting is 40%, which equates to about 784 RPM. I can keep it like this and still not hear the fan. And the fan will still ramp up even faster automatically if needed. Let's turn it up even more to find out where I can start hearing the fan.
At 76%, the fan is spinning 1508 RPM. I can definitely hear that now. Well, that's enough of that. Let's put the PSU fan back into "quiet" mode, fire up Prime95 and Furmark and see what kind of power we produce and let the fan spin up all on its own.
Almost immediately, the temperatures of the CPU and graphics cards increase. Under this load, we start to see the power supply fan ramp up as well.
After some time under load, we see our temperatures level out, an increase in the graphics cards' fan's RPMs and the PSU's fan leveling off just over 500 RPM.
When we switch back over to the "Power" tab, we can see that our load has increased to 473.4W. We're now pulling 502.9W from the wall and our efficiency is increased to 94%. We can see that the amperage delivered on all of our +12V connectors has increased, the AX860i's temperature has increased very slightly, from 26.5 to 28.8°C, and the fan is now spinning at 556 RPM.
Of course, when you're gaming you're probably not going to be able to watch your load, temperatures and fan speeds while you're playing. For this reason, Corsair Link allows you to log whatever information you'd like to keep track of in a CSV file. Simply check the boxes of the components you want to monitor, browse to where you want to save the file and give the file a name and click "start logging".
Вступление
В очередном материале, созданном по массовой методике тестирования БП, мы продолжаем изучение 450-ваттных моделей. Напомню, что это одна из наиболее конкурентных мощностных групп нашего цикла, на данный момент количество изученных устройств достигает пятнадцати, и сейчас к ним добавятся еще четыре.
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Все участники обзора, который состоялся благодаря нашему партнеру – компании Регард, выпущены под известными брендами и широко представлены в розничной продаже. Три блока – Chieftec CTG-450-80P, Corsair VS450 и FSP 460-60GHC, по меркам данной группы относятся к среднему классу. Их стоимость практически одинакова и составляет ~1600 рублей.
Gigabyte ATX-H450K стоит в полтора раза дешевле – ~1000 рублей. Но сможет ли эта модель потягаться с более дорогими оппонентами?
Chieftec CTG-450-80P
Блок поставляется в картонной коробке средних размеров – 230 х 175 х 100 мм.
Коробка универсальна и используется сразу для нескольких БП линейки A80 – конкретная модификация обозначается с помощью наклейки. Несмотря на это, информативность неплоха: на упаковке приводятся общие таблицы мощностных характеристик и разъемов для всех моделей, так что покупателю просто нужно найти свой блок в списке.
Упакован CTG-450-80P надежно – корпус защищен мягким «пузырчатым» пакетом, все шнуры зафиксированы проволочными стяжками.
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Комплект поставки включает в себя инструкцию, шнур питания и крепежные винты – ничего необычного.
Привычно смотрится и сам блок – мы уже встречались с несколькими устройствами этой линейки. Невысокую цену выдает отсутствие дополнительной оплетки на шнурах (ею снабжен только «главный» кабель ATX Mainboard), сам корпус окрашен в серый цвет. Позитивный момент: решетка, накрывающая вентилятор, правильно закреплена «снаружи» – ее можно легко снять для упрощения чистки блока от пыли.
Габариты БП – 149 х 139 х 86 мм (стандартный ATX-формат), масса – 1540 г. Он выполнен по стандартной (немодульной) схеме и снабжен кнопкой отключения питания.
Блок оснащается привычной для всех устройств этой категории семилопастной вертушкой типоразмера 120 х 25 мм.
Рассмотрим мощностные характеристики. Линия 12 В разделена на два виртуальных канала, сила тока на каждом ограничена 20 А. Суммарно же по 12 В можно подать до 350 Вт мощности. В отношении к номиналу блока показатель составляет ~77.8% (далеко не лучшее, хотя и приемлемое значение для недорогого устройства данной мощностной группы).
Сила тока на линии 3.3 В ограничена 24 А, а на линии 5 В – 17 А. В сумме по ним можно подать до 120 Вт мощности. Блок не сертифицирован по стандартам 80 PLUS, однако производитель указывает, что КПД превышает 80% при напряжении питания 230 В (напомню, что оригинальный стандарт 80 PLUS описывает только устройства, работающие от сети 110 В).
Блок оснащен составным разъемом ATX Mainboard 20+4-pin, а вот для центрального процессора предусмотрен лишь простой одиночный CPU 4-pin. Длина шнуров составляет 420 мм.
Для питания видеокарты предназначен одиночный шестиконтактный PCI-e (длина шнура – 420 мм). Даже со скидкой на невысокую цену блока, этого явно мало.
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Не поражает CTG-450-80P и количеством коннекторов для периферии: четыре SATA, три Molex и один Floppy. В принципе, этого достаточно даже для весьма производительного домашнего ПК, но в нашей подборке есть 450-ваттные БП с куда большим количеством разъемов. Длина шнуров составляет 600 и 850 мм.
Что ж, Chieftec CTG-450-80P не преподнес сюрпризов. Это типичная недорогая модель категории 450 Вт: средние мощностные характеристики, необходимый минимум разъемов, скромный дизайн. Среди плюсов можно отметить разве что общую аккуратность изготовления и надежную упаковку.
Подпишитесь на наш канал в Яндекс.Дзен или telegram-канал @overclockers_news - это удобные способы следить за новыми материалами на сайте. С картинками, расширенными описаниями и без рекламы.
Серия CORSAIR VS Series создана наиболее надежным на рынке блоков питания производителем и сочетает доступную цену с подтвержденной сертификатом 80 PLUS эффективностью.
CORSAIR VS450 создан наиболее надежным на рынке блоков питания производителем и предоставляет подтвержденную сертификатом 80 PLUS эффективность по доступной цене.
Источник питания VS450 гарантированно обеспечивает 450 Вт номинальной мощности. Блок питания оснащен универсальным входом и способными поддерживать широкий диапазон сетевого напряжения (100–240 В переменного тока) компонентами электронных цепей. Для того чтобы вы могли не беспокоиться о своей системе, в устройство добавлено несколько цепей защиты электропитания. Благодаря одной специализированной линии +12 В вы не столкнетесь с трудностями балансировки нагрузки компонентов на нескольких кабелях питания.
Черные кабели, кабельные муфты и разъемы позволяют создать отлично выглядящий ПК, а сверхкомпактный корпус блока питания с глубиной 125 мм обеспечивает максимальную совместимость с корпусами практически любых современных компьютеров.
Благодаря системе терморегулирования 120-миллиметровый вентилятор вращается только при необходимости, однако и при полной нагрузке уровень шума остается низким. Блок питания VS450 имеет подтвержденную сертификатом 80 PLUS высокую эффективность, благодаря которой он вырабатывает меньше тепла, что способствует экономии электроэнергии.
На блок VS450 предоставляется полная гарантия на три года а также доступ к знаменитым службам технической поддержки и обслуживания клиентов CORSAIR.
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Using Link with a Corsair AXi Digital Power Supply
The Corsair AXi Series PSUs have a lot of premium features. They use a digital signal processor for better performance, they're fully modular, and have a zero RPM fan mode at low loads. But one of the coolest things about the AXi power supplies, is their compatibility with the new Corsair Link software. Today, we take a look at the Corsair Link 2 software, or just "Link" for short, and more specifically how it gives you the ability to monitor AC input, DC output, the temperature and the fan speed of an AXi power supply.
The first thing I want to do is open up the "Graph" tab and set what I want to monitor in the "Config Panel" of this tab.
Above, you can see that I've checked boxes asking to have my two graphics cards' temperatures and fans graphed, as well as my CPU's temperature, the temperature of my AX860i power supply, as well as the AX860i's fan speed. I'm also monitoring the temperature of the coolant in the Hydro Series H100 that is cooling the CPU and the RPMs of the two fans cooling the H100's radiator.
While the system is idle, we can see that temperatures are relatively low. The AX860i is just barely over room temperature and therefore, the fan is not spinning.
Over on the "Power" tab, we see that the AX860i is only producing 107.3W as I sit here watching the Link software. It's pulling 117.8W from the wall, so our efficiency is 91%.
On this tab, we can also monitor our voltages, including the voltage of our AC mains, as well as current for each of our +12V outputs.
Finally, we see the AX860i's temperature and the fan RPM on this tab. This is the same information we saw on the "Graph" tab, but in a different format. The fan is still not spinning because the temperatures are still low, but if we wanted to increase the airflow within our chassis just a bit, we can manually turn the fan speed up.
We start on the "System" tab.
On this tab, we can see everything that Corsair Link 2 monitors, but if we click on the "AX860i Fan" icon on the left, a configuration panel opens up on the right. By default, we can see the fan mode is set to "quiet" which means the fan isn't going to spin at low loads. Changing this is easy.
The lowest setting is 40%, which equates to about 784 RPM. I can keep it like this and still not hear the fan. And the fan will still ramp up even faster automatically if needed. Let's turn it up even more to find out where I can start hearing the fan.
At 76%, the fan is spinning 1508 RPM. I can definitely hear that now. Well, that's enough of that. Let's put the PSU fan back into "quiet" mode, fire up Prime95 and Furmark and see what kind of power we produce and let the fan spin up all on its own.
Almost immediately, the temperatures of the CPU and graphics cards increase. Under this load, we start to see the power supply fan ramp up as well.
After some time under load, we see our temperatures level out, an increase in the graphics cards' fan's RPMs and the PSU's fan leveling off just over 500 RPM.
When we switch back over to the "Power" tab, we can see that our load has increased to 473.4W. We're now pulling 502.9W from the wall and our efficiency is increased to 94%. We can see that the amperage delivered on all of our +12V connectors has increased, the AX860i's temperature has increased very slightly, from 26.5 to 28.8°C, and the fan is now spinning at 556 RPM.
Of course, when you're gaming you're probably not going to be able to watch your load, temperatures and fan speeds while you're playing. For this reason, Corsair Link allows you to log whatever information you'd like to keep track of in a CSV file. Simply check the boxes of the components you want to monitor, browse to where you want to save the file and give the file a name and click "start logging".
Серия CORSAIR VS Series создана наиболее надежным на рынке блоков питания производителем и сочетает доступную цену с подтвержденной сертификатом 80 PLUS эффективностью.
CORSAIR VS450 создан наиболее надежным на рынке блоков питания производителем и предоставляет подтвержденную сертификатом 80 PLUS эффективность по доступной цене.
Источник питания VS450 гарантированно обеспечивает 450 Вт номинальной мощности. Блок питания оснащен универсальным входом и способными поддерживать широкий диапазон сетевого напряжения (100–240 В переменного тока) компонентами электронных цепей. Для того чтобы вы могли не беспокоиться о своей системе, в устройство добавлено несколько цепей защиты электропитания. Благодаря одной специализированной линии +12 В вы не столкнетесь с трудностями балансировки нагрузки компонентов на нескольких кабелях питания.
Черные кабели, кабельные муфты и разъемы позволяют создать отлично выглядящий ПК, а сверхкомпактный корпус блока питания с глубиной 125 мм обеспечивает максимальную совместимость с корпусами практически любых современных компьютеров.
Благодаря системе терморегулирования 120-миллиметровый вентилятор вращается только при необходимости, однако и при полной нагрузке уровень шума остается низким. Блок питания VS450 имеет подтвержденную сертификатом 80 PLUS высокую эффективность, благодаря которой он вырабатывает меньше тепла, что способствует экономии электроэнергии.
На блок VS450 предоставляется полная гарантия на три года а также доступ к знаменитым службам технической поддержки и обслуживания клиентов CORSAIR.
Understanding the Corsair AXi Series Digital Power Supplies
Replacing commonly used ICs with a digital signal processor in the Corsair AXi Series PSUs has many benefits. Today, I'm going to explain the functions of the components that are replaced within the Corsair Digital power supplies and how these changes benefit the end user.
The parts of the Corsair AXi Digital Power Supply that makes them unique when compared to other desktop power supplies is the absence of a PFC/PWM controller IC (integrated circuit) on the power supply's primary side and a supervisor IC on the power supply's secondary side. Both of these parts have been replaced with DSP, which stands for "Digital Signal Processor".
AXi PSUs still use what's called a "resonant mode" topology like a lot of modern day super-efficient power supplies, but typically in other resonant mode PSUs a PWM controller IC changes the power supply's switching frequency based on an analog signal derived from the load measured at the transformer. This makes the power supply more efficient at a wider range of loads compared to other power supply topologies, but doing this alone can affect ripple and noise and voltage regulation.
The resonant mode controller, shown above, is just about the only IC you'll find in an AXi power supply that you may also see in other high end power supplies.
The supervisor IC is the heart of the power supply's safety functions. Functions like OCP (over current protection, which is protection from any one output drawing too much current), OPP (over-power protection, which prevents overloading), OVP (over-voltage protection, which measures if voltage goes too high), UVP (under-voltage protection), and SCP (short circuit protection). Temperatures are also measured within the power supply and this is reported to the IC's OTP (over-temperature protection). If any value programmed into the IC is exceeded, the IC is instructed to shut down the power supply.
Above is a supervisor IC found in a Corsair GS800 power supply.
In an effort to improve voltage regulation (drops in voltage as loads increase), the information concerning the power supply's output voltage is sent back to the PWM controller via an analog signal. This information moves relatively slow when compared to the ever-varying loads of your typical PC, so voltage regulation is still not as good as it can be.
Above is the PWM/PFC controller from a Corsair GS800 power supply.
AXi power supplies improve on this analog system by using the DSP. Like a supervisor IC, the DSP measures all of the pertinent information on the secondary side, as well as taking the same measurements on the primary side as your typical PFC/PWM controller IC. This information is also analyzed by the DSP's microprocessor and adjustments are made to the different components of the power supply in an effort to improve efficiency while maintaining very tight voltage regulation and minimizing ripple and noise. Because the signals are digital instead of analog and an inherently homogeneous DSP system is used to analyze the information as opposed to multiple ICs, adjustments can be made much faster than can be made with the typical set of ICs found in other desktop power supplies. And since the DSP is analyzing all of the same outputs (and then some!), the DSP still has the ability to act as a supervisor IC and shut down the power supply if any values exceed what is considered "safe" for the power supply or your computer.
Here is an AX860i removed from the housing. This one PCB has all of the chips that are part of the DSP system.
Let's zoom in on some of the chips on this PCB. Shall we?
Above is a picture of the Freescale Digital Signal Controller found in the AXi series of power supplies. This chip handles what goes on on the primary side of the power supply.
This guy is responsible for the PFC (power factor correction) control, the PMW (pulse width modulation) control, monitoring of the AC input's voltage, current and wattage and logical on/off control, like shutting down for inrush, brownouts, etc.
Above we see two more ICs found inside an AXi series power supply. The chip on the bottom is the main MCU, or "MCU I". The chip on the top is a USB MCU, or "MCU II". These guys handle what goes on on the secondary side of the power supply.
The MCU I does what we call "housekeeping". It has a lot of the same functions as a supervisor IC in an analog controlled PSU. Things like OCP, OPP, OVP, etc. are all monitored by this chip. This chip also handles the PMBus (power management bus) and thermal monitoring and fan control. The MCU I also monitors the power on (soft on/off) and power good signals coming from the motherboard. On top of all of this, the MCU I also monitors the DC output for voltage drop, ripple and noise and communicates back to the DSP to address any issues that may come up.
The MCU II is the chip that allows the user to turn on/off the single/multiple +12V rail capability of an AXi PSU via the Corsair Link software. The self test function is also controlled by this chip.
Since the DSP accumulates all of this information about the power supply, and does so in real time, we can deliver it to the end user via our Corsair Link software. Power supplies have attempted to deliver similar information about the power supply to the end user in the past; either via software or displayed on a 5.25" bay LCD. But since the information about the power supply in these older units was accumulated via the PFC/PWM controller and supervisor IC, the information had to be converted to a digital signal before being displayed. This adds a good deal of cost and prevents the information from being delivered as close to real time as possible.
Using Corsair Link, we can monitor everything from AC input voltage, output wattage. even the current being delivered to each graphics card's PCIe controller! Above you can see I've enabled OCP on each modular connector (essentially making the AXi a multiple +12V rail power supply) and turned all of the limits down to 20A.
We can also keep track of the temperature inside the power supply and how fast the fan is spinning:
All in all, AXi Digital Power Supplies are so much more than your average desktop PSU on so many levels. By utilizing a DSP, Corsair offers improved efficiency while maintaining stable voltage output and minimizing unwanted ripple and noise. And because all of this information is maintained in a digital format, and output to the Corsair Link software interface is practically seamless!
Серия CORSAIR VS Series создана наиболее надежным на рынке блоков питания производителем и сочетает доступную цену с подтвержденной сертификатом 80 PLUS эффективностью.
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