AMD Pulls PCIe 4.0 Support on all non-X570 motherboards
Yesterday we reported that gigabyte is actively pulling inf PCI-Express 4.0 support from all non-X570 motherboards. AMD has now stepped it up and is has removed the feature from older chipsets in their latest AGESA firmwares.
AMD has drawn consequences from the one-sided efforts of the manufacturers in the matter of PCI Express 4.0 on motherboards with pre-X570 chipsets. Along with AGESA Combo-AM4 1.0.0.3 ABB the support will be removed.
The motherboard manufacturers have partially defied the requirements of AMD and released PCI-E 4.0 on motherboards with older chipsets. A recent updated AGESA firmware now removes PCI Express 4.0 support on all motherboards with pre-X570 chipsets.
The rollout via BIOS updates has recently been started. Among other things Gigabyte distributes corresponding updates with AGESA Combo-AM4 1.0.0.3 ABB and notes in the change notes the remote support of PCI-E Gen4 when using a Ryzen 3000 processor due to the new AGESA version. A similar reference can be found in the mainboard models GA-A320M-H and Gigabyte X470 Aorus Gaming 7 WiFi .
Several motherboard manufacturers have added PCI Express 4.0 motherboards with on B450- and X470 chipsets. AMD announced before the launch of Ryzen 3000 and the X570 platform that PCI-E 4.0 only would be available on X570 motherboards. The motherboard manufacturers, however, wanted to upgrade their product portfolio on their own.
The update in the form of AGESA Combo-AM4 1.0.0.3 ABB is also accompanied by further changes. According to AMD, smaller issues with Ryzen 3000 processors have been resolved. In addition, AMD has adopted the warning "Event 17, WHEA Logger" in Windows Event Viewer and XMP profile compatibility for memory.
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Not at all, there is lot of product on the way in PCIe 4.0...
But it will take time, as for 2.0 or 3.0 in it's time, to be a fully adopted technology (and it will be faster due to SSD in PCIe 4.0)
In the time i write you can still live in 3.0... SSD 4.0 aren't as cheap as 3.0 and there is even GPU with X16 connector that are in fact connected in X8...
Also mainstream 5*0 motherboard would reach the shop at the end of summer...
It would be better if there is less own concurence as in the actual generation where Asrock still sell X370 at price bellow B450's one.
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Tbh they old ones "support" it sure. But not being native I think this is a good move anyways.
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They rather want to push the expensive X570 boards with noisy 40mm fan's xD No thanks.
PCIe 4.0 was DoA anyway...
People keep saying this without thinking it through. AMD makes no money off the cheap or expensive board sales. The only reason AMD did this is because they know through testing its going to be a nightmare and give them a bad image if they allow PCie 4 on older boards. I bet we would have heard lots of stories about SSD's and data loss if this were allowed. Then you add the fact nobody in the history of computing has had forward PCI compatibility built into motherboards. Having PCIE 4 is going to be huge going forward especially for IO.
With that said I do not want a chipset fan. What most people don't know is that the Matisse IO die in Ryzen and the x570 chipset are actually the exact same floor plan but with different bits enabled. I fully expect AMD's next gen on 7nm+ will move the IO die along with the chipset to 7nm which will get the wattage down enough to passively cool the chipset.
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Seems to me AMD shot themselves in the foot for adding PCIe 4.0. A little ironic how people would be happier if they just stuck with 3.0.
Objectively, AMD doesn't want to have this feature on older chipsets, how could they justify the new one, or the forecoming ones?
Now, having their new CPUs working on older chipsets/ motherboards is what they promised with AM4.
Doesn't necessarily bothers me.
I'm not sure I understand your question. What exactly needs justification? PCIe 4.0 (according to them) has stricter electrical tolerances. Newer boards (including cheaper ones) will have to be built to meet those tolerances. Of course, we just have to take their word for it, but as I said in yesterday's Gigabyte topic, AMD isn't the one defining the spec.
Their CPUs do work on older chipsets and motherboards as promised. They promised nothing about PCIe forward compatibility with older boards. And even then, you're still getting PCIe; it's not like they're dropping it entirely. Sure, it leaves a bitter taste that it's being artificially disabled, but assuming AMD isn't exaggerating the tolerances, you're probably better off not using PCIe 4.0 on a B450 board.
Not at all, there is lot of product on the way in PCIe 4.0...
For consumer-grade stuff? Because I thought most of it was just SSDs and server hardware.
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Objectively, AMD doesn't want to have this feature on older chipsets, how could they justify the new one, or the forecoming ones?
Now, having their new CPUs working on older chipsets/ motherboards is what they promised with AM4.
Doesn't necessarily bothers me.