There has been a lot of discussion recently as to what capacitors are used inside Corsair power supplies. While there’s much speculation that Japanese capacitors are the only capacitors that should be used in an enthusiast level product, the fact of the matter is that there is a good deal of research done when considering what capacitors to use in a particular power supply. Furthermore, improvements in both efficiency and switching technologies have reduced the dependency on using very expensive capacitors. To help clear up this subject, I have put together this brief Q&A about capacitors in power supplies.
Hello everyone. My name is Jonny Gerow, but a lot of people know me by my alias "jonnyGURU". I started up a little website humbly called jonnyGURU.com, where we primarily review computer power supply units. I'm very happy to say that I am now working at Corsair as a technical marketing specialist for power supplies and I'm excited to be given the opportunity to play with Corsair's newest unit: the AX1200i Digital ATX Power Supply.
Last week, I cracked one open and showed everyone what it looks like on the inside and how it works. Today I get to put the AX1200i through the paces on some of this test equipment I happen to have sitting here.
So how does a better PSU equate to a better computing experience? Consider this: If your power supply isn't doing a good job of regulating voltage and filtering ripple, what is?
The computer power supply essentially converts AC to DC. Older or more basic computer power supplies convert AC to multiple DC voltages (+12V, +5V, +3.3V) at the same time. Newer, more advanced power supplies, convert AC to +12VDC, while smaller DC to DC power supplies within the power supply's housing convert the +12V to lesser used +3.3V and +5V. The latter is more efficient because lesser used voltages are not converted unless they're required and converting DC to DC itself is more efficient than converting AC to DC as it requires fewer and smaller components.
After that voltage is converted, it's filtered with inductors and capacitors.
The AXi Series of power supplies have completely changed how a desktop power supply works by taking out the slower, less accurate PWM controller and supervisor IC and replaced them with a state of the art digital signal processor. The following briefly explains the technology we use, the benefits of it and how it enhances your computing experience with the Corsair Link 2 software.
A report recently published over at the VR-Zone discussing the new 4th generation Intel Core processors, code-named "Haswell", and their ability to go into a lower power sleep state than any previous processor has caused some concern about PSU compatability with the new processor.
When an Intel Core (i3, i5, i7) processor is idle, it goes into a sleep state that requires less power than when the CPU is active. Since the motherboard voltage regulation modules that provide power to the CPU gets their power from the power supply's +12V rail, these sleep states can dramatically reduce the load on the power supply's +12V rail.
As technology advances, the demand for more efficient devices also increases. We at CORSAIR have always prided ourselves with our highly efficient and reliable power supply units, from the most budget friendly CX models to our top of the line AX series. However, there will always be new specifications that emerge to further drive the… Continue Reading →