Why do manufactures and AMD say 1gen ryzen isn't compatible on 570 when it is??

[Npiet1]

So recently I had to update a Bios on a x570, even though it was 3000 series ready on the box, the 3200g didn't work, however the Ryzen 1400 did. The 1st gen Ryzen's where never compatible with the 570 chipset according to any of the manufacturers or even AMD, so why is it and why say it's not? 

[boggy77]

what motherboard?

[Npiet1]

3 minutes ago, boggy77 said:

what motherboard?

asus prime x570-pro but there's other threads and news articles with multiple manufactures like gigabyte and MSI all running 1st gen on a 570.  

[shaz2sxy]

I think it depends on the motherboard manufacturer and there bios chip sizes

 

some manufacturers had to stop supporting Gen 1 as there wasn't enough space on the bios for gen 1 to gen 3 

[porina]

There's two different questions at play here.

1, does it work at all?

2, does it officially work and is supported?

 

You have have a working system but not one that is officially supported. If anything goes wrong, there is NO support. You're on your own. This is like the ECC capability of AM4 Ryzen. It's there, it can be enabled, but if it works correctly or not, who knows. 

[Npiet1]

1 minute ago, porina said:

There's two different questions at play here.

1, does it work at all?

2, does it officially work and is supported?

 

You have have a working system but not one that is officially supported. If anything goes wrong, there is NO support. You're on your own. This is like the ECC capability of AM4 Ryzen. It's there, it can be enabled, but if it works correctly or not, who knows. 

1. Yeah it does, got into the bios updated no longer works. 

2. I get you, will it support all the features of the 570? like being able to use the pci 4 at it's fullest (I don't think it can from what I remember due to the lanes of the cpu.) 

[porina]

23 minutes ago, Npiet1 said:

2. I get you, will it support all the features of the 570? like being able to use the pci 4 at it's fullest (I don't think it can from what I remember due to the lanes of the cpu.) 

Still not quite right. Older CPUs wont support PCIe 4.0 regardless of the chipset. My answer was purely looking at the CPU. Even if the CPU appears to work, there is no guarantee it will work correctly.

[Npiet1]

2 minutes ago, porina said:

Still not quite right. Older CPUs wont support PCIe 4.0 regardless of the chipset. My answer was purely looking at the CPU. Even if the CPU appears to work, there is no guarantee it will work correctly.

But wouldn't it still be ideal to mention you could use it for flashing bios for new CPU's?

[Drama Lama]

1st reason the bios memory on many boards is too small to guarantee compatibility with all Ryzen chips

2nd reason they want to sell motherboads

 

basically the same reasons why x370 doesn't support 4th gen Ryzen

 

fun fact Ryzen is an SoC and doesn't even require a chipset to work

[LogicalDrm]

-> Moved to CPUs, Motherboards and Memory