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. Replacing commonly used ICs with a digital signal processor in the Corsair AXi Series PSUs has many benefits. It has a lot of the same functions as a supervisor IC in an analog controlled PSU. OCP stands for "over current protection" and will shut down the power supply if too much current is delivered on any of these outputs.

Above we see two more ICs found inside an AXi series power supply. All rights reserved. VS450 is backed with a three-year warranty, and you get lifetime access to Corsair’s legendary technical support and customer service.

By default, we can see the fan mode is set to "quiet" which means the fan isn't going to spin at low loads.

This manual comes under the category Computer adapters and has been rated by 2 people with an average of a 9. AXi power supplies improve on this analog system by using the DSP. It's pulling 117.8W from the wall, so our efficiency is 91%. I can keep it like this and still not hear the fan. 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. Well, that's enough of that. Multiple power protection circuits provide for added peace of mind. These guys handle what goes on on the secondary side of the power supply. There are also check boxes that allow you to turn OCP on for the 8-pin +12V outputs (labeled "PCIe") on the power supply. And the fan will still ramp up even faster automatically if needed. 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. Above is a supervisor IC found in a Corsair GS800 power supply. 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. The self test function is also controlled by this chip. By utilizing a DSP, Corsair offers improved efficiency while maintaining stable voltage output and minimizing unwanted ripple and noise. All rights reserved. They use a digital signal processor for better performance, they're fully modular, and have a zero RPM fan mode at low loads. 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. ), 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.

This adds a good deal of cost and prevents the information from being delivered as close to real time as possible. Also for: Vx550w, Cmpsu-450vx, Cmpsu-550vx. VS Series Power Supplies Certified 80 Plus in the European Union. 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. Things like OCP, OPP, OVP, etc. 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.

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. 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. 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. 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.

Ask your question here. Above is a supervisor IC found in a Corsair GS800 power supply. 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.

Above we see two more ICs found inside an AXi series power supply. This is the same information we saw on the "Graph" tab, but in a different format.

This one PCB has all of the chips that are part of the DSP system.

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