Updated AGESA Coming for Intermittent USB Connectivity

1 : Anonymous2021/03/11 18:11 ID: m2wqkf

We would like to thank the community here on

for its assistance with logs and reports as we investigated the intermittent USB connectivity you highlighted. With your help, we believe we have isolated the root cause and developed a solution that addresses a range of reported symptoms, including (but not limited to): USB port dropout, USB 2.0 audio crackling (e.g. DAC/AMP combos), and USB/PCIe Gen 4 exclusion.

AMD has prepared AGESA to deploy this update, and we plan to distribute to our motherboard partners for integration in about a week. Customers can expect downloadable BIOSes containing AGESA to begin with beta updates in early April. The exact update schedule for your system will depend on the test and implementation schedule for your vendor and specific motherboard model. If you continue to experience intermittent USB connectivity issues after updating your system to AGESA, we encourage you to download the standalone AMD Bug Report Tool and open a ticket with AMD Customer Support.

2 : Anonymous2021/03/11 18:29 ID: gqlmrmf

Cheers!! Feedback from the community heard, user involvement in reporting and identifying the issues, and a forthcoming potential fix. This what we love to see!

3 : Anonymous2021/03/11 18:31 ID: gqlmypi

Any details on what the cause is?

ID: gqmmrcq

I wouldn't be surprised if it was a timing issue trying to synchronize USB signaling with the faster symbol rates of PCIe4.

**P.S.:** Someone below commented that

its a controller reset triggered due to to many uncorrectable pcie errors

Wanted to make sure that the must up to date info I have is posted since my comment has a decent amount of upvotes.

ID: gqn8185

Seeing as it could still happen even when set to gen3 in some cases, I'm not convinced this is the cause. Like for me it only affects my Bluetooth as that's the only USB 2.0-linked component in the system, as it's a mini ITX board with no USB 2.0 ports, and only one internal 2.0 header that I'm not using. And I'm always set to gen3 as I've got a riser cable that's gen3, so I can't run my card at gen4. But I lose bluetooth in the exact same circumstances as the USB issues.

I'd bet more on something stupid, like to do with power management idling the pcie link to the USB controller when it isn't actually idle, or some other such silliness.

Still, maybe someone will dissect the agesa just far enough to figure it out.

ID: gqms114

I also wouldn't doubt if it was a motherboard manufacturing issue, but due to inadequate specification documentation, it isn't entirely their fault, so this message is very carefully worded but corrected in software. Could be as simple as the chemistry and tolerance of a capacitor to decouple a specific pin on a specific chip.

It has been known that the issue only effects some motherboards, but very unpredictably.

Edit: Grammar correction.

ID: gqlu1fz


, /, any ideas?

ID: gqop3xf

Why would buildzoid know the ins and outs of BIOS programming? I believe that, unless they tell us, we won't know.

ID: gqm09co

Companies don't tend to like telling everyone specifically how they fuck up.

Even the wording of this announcement carefully avoids stating that there is a problem.

ID: gqm4j4x

Even the wording of this announcement carefully avoids stating that there is a problem.

AMD already acknowledged "USB port dropout, USB 2.0 audio crackling (e.g. DAC/AMP combos), and USB/PCIe Gen 4 exclusion".

I don't know what more you were expecting.

ID: gqm39lp

It acknowledges a problem, it just (wisely) doesn't attribute blame for it.

ID: gqm4kl5

It is honestly so nice that AMDOfficial came out and said this, and you have to go and make it all negative.

ID: gqmeztz

What if the saying what the actual issue is, leads to a security vulnerability in the future because they gave some small detail about the inner workings out.

ID: gqlv9su

I suppose a simple "bug"

4 : Anonymous2021/03/11 18:42 ID: gqlojj0

Maybe you can reach out to Gigabyte, they seem to be having issues making new BIOS versions.

ID: gqmp1wm

It's sad how Gigabyte went from being one of the first out with beta BIOSes and being very vocal about it to basically being the slowest of the bunch and not communicating with the community any more.

Their good support this generation was my main reason for going with them. Their lack of support is my main reason not to give them a chance ever again if I can help it.

Also, RGBFusion, worst piece of software ever. Thank God for OpenRGB.

ID: gqn0fng

They started sliding right around when GBT_Matthew left for AMD.


ID: gqn2koj

Asrock polychrome would like to disagree

ID: gqocsov

> It's sad how Gigabyte went from being one of the first out with beta BIOSes and being very vocal about it to basically being the slowest of the bunch and not communicating with the community any more.

And funny how Asus went from being the worst after that one intern leaving to having one of the quickest BIOS turnarounds.

ID: gqn5iso

Dragon Center is worse.

ID: gqmfxis

Unfortunately, they have gotten rather slow with updates right before AGESA Beta takes ages now.

ID: gqn1z4j

Gigabyte skipped AGESA 1.1.x.0 and They will jump onto if it actually fixes the issue.

5 : Anonymous2021/03/11 18:15 ID: gqlkq85

Thanks! Great news.

6 : Anonymous2021/03/11 18:46 ID: gqlp5jr

Could you explain what the issue is thought to be for those of us curious?

ID: gqmdx6t

Many AMD motherboard (B550, X570 etc.) USB 3.0 ports don't work at all with VR headsets such as the HP Reverb G2. The problem is something to do with the USB controller not meeting signal integrity requirements for the long, high bandwidth cables used to send tracking data. The only solution is to get lucky with a USB 3.0 Hub or buy a USB 3.0 PCIe card. My G2 is currently hanging on the wall unused because of this.

ID: gqmkbnh

A powered USB3 hub is a workaround.

Mkes me believe the problem isnt signal integrity, but a low USB power problem.

ID: gqm675r

load up gpu, external audio interface and sometimes mouse and keyboard disconnect and hang.

super easy to reproduce with a high gpu process (like saving an overwatch replay and encoding it with the gpu) while playing music on a focusrite audio interface.

ID: gqmgk0e

Damn, I might have thrown away a perfectly good mouse and keyboard lol

ID: gqmxx42

Sonofa. I have a pro audio interface that would blue screen in certain video games (I debugged the kernel minidump to find out what piece of hardware was causing it). Thought my drivers were just buggy for video games. I swear, this build has been the buggiest pile of garbage I have built in the past 15ish years.

7 : Anonymous2021/03/11 18:37 ID: gqlntz0

Great news! Hopefully in the future AGESA would be independent of full EFI images.

8 : Anonymous2021/03/11 19:01 ID: gqlraj6

Yay! I am very happy to hear this, and I hope that the data I and all other redditors sent in helped. Looking forward to the updates.


this is super important for all us ASUS customers affected, if you can pass this onto the BIOS guys, it'd be invaluable and super appreciated!

ID: gqnd8ae

Asus owns Asmedia, they know.

9 : Anonymous2021/03/11 18:49 ID: gqlpjy3

I feel like I'm in the pit of Ra's al Ghul and someone just lowered me a rope

10 : Anonymous2021/03/11 18:29 ID: gqlmrk2

Mods pin this!

11 : Anonymous2021/03/11 21:40 ID: gqmcy2a

I hope this solve BSOD whea errors too......

12 : Anonymous2021/03/12 00:53 ID: gqn01wv

USB 2.0 audio crackling (e.g. DAC/AMP combos)

Oh, nice that this is also getting addressed. I've got an ASRock B550M Pro4 and I haven't encountered the total loss of connectivity that some people are dealing with on other boards, but I have noticed a bit of mild crackling on my audio interface every now and then; wasn't sure whether or not it was a mobo issue but hopefully this clears everything up.

13 : Anonymous2021/03/11 18:49 ID: gqlplxa

good job. buy the lads a drink.

14 : Anonymous2021/03/11 22:38 ID: gqmkces

Please talk to Gigabyte their bios support is lacking in many ways they need your help.

15 : Anonymous2021/03/12 03:24 ID: gqnh8sq

Big thanks again to those who complained about this issue. And still, fuck the fanbois that blamed the users instead.

16 : Anonymous2021/03/11 18:39 ID: gqlo47u

Extremely interested in hearing the root cause as well. These were some rather unusual issues!

17 : Anonymous2021/03/11 19:04 ID: gqlro3g

Now the one question i think many people may overlook.

Will motherboard vendors provide this update in 2 separate versions, as many boards don't receive updates that support older cpus that were supported only up to a certain bios version. While this isn't necessarily a worry for me, i'm just curious if there may be ryzen 1000-2000-3000 and associated APU bios, and then another for 3000-5000 and upcoming apus.

Totally out of the hands of AMD of course, but probably something that would be wise to implement even on prior cpu models.

18 : Anonymous2021/03/11 20:28 ID: gqm32no

My gigabyte x570 master has 5 usb 3.0/3.1 ports that straight up don't work. It just happened one day after about a month after building my PC. Will this fix them? I've tried updating bios and reinstalling windows.

ID: gqmnhp2

That sounds more like you need to RMA the board if doing the PCIE4 to PCI3 or Global C-States Disabling doesn't work for you.

19 : Anonymous2021/03/11 18:52 ID: gqlpy67

+1 to an explanation of how/why it's happening in the first place

20 : Anonymous2021/03/11 19:44 ID: gqlx5cz

I found some settings in my b550 aours master which allowed to increase "memory pool" of usb ports from 32 to 128 mb after that issue is gone.

ID: gqmdsrz

Can you give us more details, like what options ?

ID: gqop9ly

I have the x570 version. Want to try this, can you point me at where it is?

21 : Anonymous2021/03/11 19:03 ID: gqlrkdn


22 : Anonymous2021/03/11 20:24 ID: gqm2mta

I do hope ASUS skips in favor of this one.

23 : Anonymous2021/03/11 20:53 ID: gqm6lgz


ID: gqnvj5d

Ax200 bt uses usb so it should fix it

25 : Anonymous2021/03/11 19:32 ID: gqlvj5v

I seem to have an issue with some of my USB ports with my 2700x on a b450 Asus board.

Wonder if this will help with that.


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