i had the issue on B450 (MSI), changed to B550 (GGB) also kena. In that reddit post, there’s plenty of users have the same problems on their x470.
AMD did release an agesa to address a USB issue before but it didnt work, if im not mistaken was as far back as Agesa 1.0.0.4 PatchB which suppose to solve compatibility with PCIE/USB devices especially soundcards but that version messed everything else up. thus this issue has been raised quite long ago before but still not solved.

So yeah it is an agesa problem, and the fix will be through agesa as well. He is not blindly attacking.



This post has been edited by Bonchi: Feb 21 2021, 11:55 PM

AMD acknowledge issue with 500 series chipset , not 400 series. Anyone can complaint their system also have same issue, but whether their problem really due to same chipset issue or others , will never know unless everyone also have same issue.

da first line



lu tak da paham the content but just got triggered with few key words agesa, b550 etc..

its like somebody wrote

obama rode a horse got injured and didnt die from covid

and all you got from it

"obama die from covid"

lol.

This post has been edited by cstkl1: Feb 22 2021, 12:19 AM

those agesa changelog is also applicable to 400 series and it has already been complained about in the VR community back at zen+ launch in 2019 and the problem still persisted till 2021. Unfortunately, my audio setup seems to trigger this problem across 3 AMD rigs but not happening on my macbook pro and my new intel rig. So it is a good enough indication that it's more of a compatibility issue.

And in a way, for them to not officially state 400 series in this post means.... they're telling those who currently running 400 series that AMD will no longer give a shit and please buy their 500 chipsets. Well to be fair, AMD did say new AGESA on 400 series mobo will not be officially support but to be up to AIB's discretion and that they will "try their best" to help.

So 400 series can cry all they want but sad to say, support has ended and AMD will only focus on 500 series.


Now I just hope AMD will finally look seriously into this (not vaguely state "fix compatibility" in the Agesa changelog but fixed nothing) and hopefully fix it for affected users who cannot afford to simply change rig like me... but for me, this experience have left a very bad taste.

This post has been edited by Bonchi: Feb 22 2021, 01:08 AM

I believe I am lucky, so far I didn't face any USB issue. I had connect Wireless Keyboard, Wireless Mouse, Wireless Xbox Controller, Wireless Headphones, USB Webcam, Blu-ray RW External Drive & external HDD.
So far all running fine. Touch wood.
I never face any USB issue on earlier firmware also. My issue previously all not related to USB.

Thanks it is solid stable to me now since using firmware with AMD AGESA ComboV2 1.2.0.0, I no longer facing any hang, BSOD, crash or restart issue. Touch wood.

This post has been edited by Andrewtst: Feb 22 2021, 05:03 AM

Now I tak paham content? Ok

Like I said, anyone can complain.

you dont understand that when agesa changes the electrical tolerance level, sensing etc. board design cannot accommodate this. ram fae has to retune dram sensing.

thats y when b550 was launched, aib could fix new design to accommodate the agesa at that time which is why zen 3000 cpu worked superbly with it.

its also the reason why x570 dark is the best mobo.

anyway like you said anyone can complain
but few understand the issue hence they dont understand the complaint

This post has been edited by cstkl1: Feb 22 2021, 08:27 AM

Same story , ppl always act in much less same manner. Herd mentality. Very pronounced in the financial markets.
My system no issues , so I presume it's other factors causing it, dun blame Amd, blah blah blah....

So if I'm not facing the issues with the USB disconnects, is it because I have a different hardware configuration than those that have the problem, a different BIOS version or something else?

Could be anything. Which USB ports are you using (USB3.1 Gen2/Gen1/USB 2.0), motherboard model, BIOS version?

There's also a separate LAN issue on some B550 motherboards, but IIRC it's due to Intel 2.5Gbit/s LAN as similar reports are also out for Z490.

I've got several X570 builds with different specs around but haven't seen this yet in the 1 year plus I've had them. Is this a fairly recent issue related to the new hardware that just came out late last year?

As you can see in the post, small sample of people... usually affected those power users who max loaded the USB ports, like me is a racing sim rig and an audio interface. Many cases also due VR. There are cases of people running multuple external HDD also kena. And also streamers who uses multiple cameras.

So that is why changing pcie gen4 to gen3 works for some people. And lowering RAM OC too for some cases. A quick google and it’s actually quite a huge sample size and had been happening for quite a long while.

So it’s a lurking issue and just waiting for a right situation to happen. That’s why this reddit acknowledgement from AMD came out mainly asking for hardware specs from affected users. Which also means this issue wont be fixed that soon.

This post has been edited by Bonchi: Feb 22 2021, 12:17 PM

I saw the reddit post that VR is the quickest way to replicate it. I dont use those so perhaps that's why I haven't experienced this.

yeap.. that could be the reason. That’s why AMD asking for hardware specs and USB devices used. Since now only ask means the fix will take a while.

Personally I've not had any USB drop outs either and I pretty much max out all the available USB ports too. Doesn't mean I'm ignorant to the fact that there is a flaw in how they implement their USB controller though.

Just like if you didn't kena covid doesn't mean it doesn't exist, right?

It does exist in some configs. Backing up large quantity data to usb storage devices especially external HDD easily replicate the usb dropout issue. Happens in my previous aorus Xtreme.

I just tested copying large file via USB storage. Confirms it happens to my board too. I usually backup using NAS which is why I did not bumped into this issue.

Now i feel quite dumb for changing so many hardware trying to solve this issue

I backed up a whole 2TB worth of Game of Thrones UHD remux recently, went without a hitch. The transfer speeds did drop substantially overtime though, but that's while other topic.

apparently it also happens on specific ports. and it could be under certain conditions too... like during higher cpu/gpu loads.

But yeah best not to trigger it if it’s running fine, else will create some sort of paranoid haha.