what am4 motherboards support next gen ryzen cpus?

[Premoz1]

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[Brooksie359]

All of them with the right bios. 

[Vegetable]

You can google this easier than I can reply but I have nothing better to do. All am4 boards are "supposed" to have full support for all am4 cpu's through 2020. This is a slight mistranslation however as from what I've heard some of the lower end a320 and perhaps b350 boards might not have the VRM/power delivery to drive future 8 core+ chips. 

[sazrocks]

Technically all of them, but overclocking of 12+core CPUs will be not recommended for all but the best motherboards.

[RyzenUp]

all of them

[samcool55]

In theory, all of them.

But i will explain why or why not that might be the case.

 

1) Manufacturers and AMD:

So, the way it goes is, AMD launches new CPU's and makes a piece of code available that allows motherboards to communicate with the cpu's.

Thing is, it's up to the manufacturer to take that code, develop it into a BIOS and then make it available.

 

It's possible some manufacturers say "we won't launch a new BIOS with support for the new AMD cpu's". But that's up to the manufacturer, not AMD.

 

2) (as already mentioned) the VRM.

So, every motherboard has a VRM, it basically takes the 12V from the PSU and turns into whatever voltage the CPU wants. Now, if you increase the core count, the power consumption increases as well. Which means more power needs to go to the CPU and that's the task of the VRM.

Some VRM's are designed with the 6-core and 8-core cpu's we have today in mind. So the VRM is designed to power those kind of cpu's, but nothing more than that. This is mostly the case with cheap motherboards.

If you put in a 10 or 12-core cpu in those motherboards, the VRM will be pushed harder than it was meant for, overheat and throttle. Result is that the CPU doesn't get enough power so it will throttle as well.

 

High-end boards (X370 and X470 boards) usually have a VRM that's overbuilt. Which means it can handle much more than an 8-core, even an overclocked one. This means you can easily install cpu's with more cores (10+) than there were originally available without getting problems with the VRM.

 

You can compare this to an engine and gearbox (engine = cpu, gearbox = VRM). Let's say right now there are engines with up to 80hp, if your gearbox is designed for engines with 80hp that's fine right now. But if there are engines later on released with 100 hp and you use those, the gearbox will be dead quite quickly.

However, if you have a car with a gearbox that can handle 160hp, even tho only 80hp engines existed when it was being sold, you won't have any issues if you install a 100 or 120hp engine later. The gearbox was overbuilt from the factory and over-spec which means it can handle the newer, more powerful engines.

 

Might be a crappy comparison (especially because the flow of energy is the wrong way) but whatever.

[Premoz1]

ok i will get x470 aorus ultra gaming