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. With universal input the power supply includes circuitry with components that can tolerate a wide range of mains voltage support (100-240 VAC). 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. VS450 is backed with a three-year warranty, and you get lifetime access to Corsair’s legendary technical support and customer service. This chip also handles the PMBus (power management bus) and thermal monitoring and fan control. 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! Over on the "Power" tab, we see that the AX860i is only producing 107.3W as I sit here watching the Link software. 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. 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. OCP stands for "over current protection" and will shut down the power supply if too much current is delivered on any of these outputs. 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. © The VS450 requires an AC adapter and USB communication (included) to the host computer. 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. Features • A dedicated single +12V rail offers maximum compatibility with the latest components. 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. VS450: the entry-level 240V power supply with high-end features The Corsair VS450 is a great choice if you’re building a home or office system with lower power demands, but you still demand the compatibility and reliability that Corsair is known for. 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. 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. Also for: Vx550w, Cmpsu-450vx, Cmpsu-550vx. 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. This is the same information we saw on the "Graph" tab, but in a different format. It has a lot of the same functions as a supervisor IC in an analog controlled PSU. Over on the "Power" tab, we see that the AX860i is only producing 107.3W as I sit here watching the Link software. Copyright Replacing commonly used ICs with a digital signal processor in the Corsair AXi Series PSUs has many benefits. The chip on the top is a USB MCU, or "MCU II". But one of the coolest things about the AXi power supplies, is their compatibility with the new Corsair Link software. 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. 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. VS450 is backed with a three-year warranty, and you get lifetime access to Corsair’s legendary technical support and customer service. 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. Shall we? 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". 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. Temperatures are also measured within the power supply and this is reported to the IC's OTP (over-temperature protection). Your PC system will generate less heat, and you’ll enjoy lower energy bills. Corsair VX450W Power Supply: User Guide. All rights reserved. The chip on the bottom is the main MCU, or "MCU I". This manual comes under the category Computer adapters and has been rated by 2 people with an average of a 9. The AX860i is just barely over room temperature and therefore, the fan is not spinning.
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