MSI internal testers confirm that they bin motherboards

[PhaseLockedLoop]

You know what the problem is with MSI… a whole lot of talk and not so much action. Analyzing their boards year after year they never seem to upgrade their powerstages. they think they can continue to get away with the same stages or same tier stages. They need to really put more effort into actually designing and considering power delivery as its not just RAW amps that you are concerned with. Here is my VRM post to understand a bit about what is going on

VRMs - The what, why and how they operate!

Hey all, @PhaseLockedLoop here due to popular demand. We throw around many acronyms every day on tech forums without actually having basic knowledge of what these things do. One such acronym you’ll hear amongst us hardware geeks like @MisteryAngel and I are VRMs. It stands for Voltage Regulator Module (VRM) and it is an electronic circuit that regulates and down-converts the voltage from its input from the power supply to the integrated circuits on the motherboard including the CPU etc. Thats a simple task but very essential as the VRM converts the various 12/5/3.3 V DC Power Rail voltages that come from a power supply unit into the lower operating voltages of the integrated circuit (i.e. 0.7 V, 1 V, 1.25 V and sometimes even lower or higher). Now us engineers we like efficiency so these devices are typically implemented with a switching style buck converter which is very efficient compared to other regulation systems. Let’s get into a largely oversimplified but detailed explanation of the basics. Through this post you will have many terms defined for you that are common use when discussing power delivery on most PC systems. Enjoy! So let us analyze the simple single phase VRM (not commonplace on today’s PCs for good reason). Here is a super oversimplified and generalized circuit diagram drawn up in Spice [Signle%20Phase%20VRM] Now as you should know from reading above this is essentially a buck converter though there’s never just one strict way to design such a converter. On the left side we have a 12 Volt Power supply unit. There are two MOSFETs before Node A. These FETs are distinguished by being on a high side and a low side which serves are actual switches (similar to your light switch through the rate it can switch at is vastly higher). Now, node B is the choke. It’s an inductor that serves as a filter for the ripple of this switching supply. Inductors attempt to maintain constant current by manipulating the voltage and thus the reason for the flyback diode th…

it is important that the power delivery is clean and ripple free. Overdriving and underpowered circuit always leads to issues. MSI has had these like when their boards lit on fire.

I hope to see a big change with X570 though…! maybe there is some hope when their contract for ANALOG Power Control is up!