4 USB Ports on B550 Stopped Working

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   About a week ago I booted up my B550 Phantom Gaming ITX/ax and found that the 4 stacked USB-A ports on the back stopped working. The other two USB ports on the back (type C and type A) still work as well as the cabled USB ports (1 type C and 2 type A) on the front of the enclosure also work. 

I've removed the devices that were attached to those ports. If I go into Device Manager I see two entries under USB controllers which have problems. One says Unknown USB Device (Device Descriptor Request Failed) and the other says Unknown USB Device (Set Address Failed).

I've already tried the tricks where you disable and then enable those devices and also looked for updated drivers. Those didn't work.

I put in a request for tech support with ASRock a week ago, but so far haven't heard back from them. I fear part of my motherboard has failed.

Any suggestions of other things to try?

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lnh Members Profile Send Private Message Find Members Posts Add to Buddy List Newbie Joined: 28 Jun 2022 Status: Offline Points: 20	Post Options Post Reply Quote lnh Report Post Thanks(0) Quote Reply Topic: 4 USB Ports on B550 Stopped Working Posted: 01 Jul 2022 at 1:01pm
	About a week ago I booted up my B550 Phantom Gaming ITX/ax and found that the 4 stacked USB-A ports on the back stopped working. The other two USB ports on the back (type C and type A) still work as well as the cabled USB ports (1 type C and 2 type A) on the front of the enclosure also work. I've removed the devices that were attached to those ports. If I go into Device Manager I see two entries under USB controllers which have problems. One says Unknown USB Device (Device Descriptor Request Failed) and the other says Unknown USB Device (Set Address Failed). I've already tried the tricks where you disable and then enable those devices and also looked for updated drivers. Those didn't work. I put in a request for tech support with ASRock a week ago, but so far haven't heard back from them. I fear part of my motherboard has failed. Any suggestions of other things to try?

threadzipper1957 Members Profile Send Private Message Find Members Posts Add to Buddy List Senior Member Joined: 05 Mar 2022 Status: Offline Points: 9365	Post Options Post Reply Quote threadzipper1957 Report Post Thanks(0) Quote Reply Posted: 18 Jul 2022 at 11:26pm
	I don't know if you are using a gmail acount, but for some reason replies can end up in Spam. Are you using a wireless keyboard and mouse, because this is a known issue, on all moherboards, from all manufacturers. The USB dongle uses the same frequency, that USB3 is using to communicate, and can render them useless. Try a Clr CMOS Try creating a bootabke USB stick with Ubuntu on it and boot from that, yoiu can run Ubuntu without installing, check if you have thge same issue, if yes, contact the seller, and return board and CPU
	Kind Regards