x370 Killer SLI/ac Front USB doesn't work properly
Printed From: ASRock.com
Category: Technical Support
Forum Name: AMD Motherboards
Forum Description: Question about ASRock AMD motherboards
URL: https://forum.asrock.com/forum_posts.asp?TID=8049
Printed Date: 18 Jul 2025 at 12:09pm
Software Version: Web Wiz Forums 12.04 - http://www.webwizforums.com
Topic: x370 Killer SLI/ac Front USB doesn't work properly
Posted By: Vandervecken
Subject: x370 Killer SLI/ac Front USB doesn't work properly
Date Posted: 14 Mar 2018 at 4:06am
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" rel="nofollow - Hi folks, I have an X370 Killer SLI/ac with a Corsair case that has front-panel USB 3.0 (2 ports, one internal connector). After connecting the front-panel up to the motherboard, I find that one USB port works, and the other doesn't. I even RMAed the front-panel from the manufacturer and reinstalled it, but I still find that one USB port works and the other doesn't. So it sounds like it's a motherboard issue, right? What could it be? Thanks, Michael |
Replies:
Posted By: JohnM
Date Posted: 14 Mar 2018 at 4:18am
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" rel="nofollow - A bent or broken pin? ------------- ASRock Fatal1ty AB350 ITX P4.90, AMD Ryzen 5 2400G, 2x8GB Corsair CMK16GX4M2A2666C16, 250GB Samsung 960EVO, 500GB Samsung 850EVO, 4TB WD Blue, Windows 10 Pro 64, Corsair SF450, Cooler Master Elite 110 |
Posted By: wardog
Date Posted: 14 Mar 2018 at 6:17am
Same MB here. Where is it you are plugging it in at on the MB? I have both mine connected in the middle of the board, above the SATA ports. EDIT: One works? You mean to say one port of the two off the same USB case connector? |
JohnM wrote:Posted By: Vandervecken
Date Posted: 14 Mar 2018 at 8:30am
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The Mobo has two USB 3.0 connectors, at the front edge of the board near the RAM. The front-panel has one USB 3.0 cable that connects to one of those two connectors - either one. When connected, one of the USB *ports* in the *front panel* works, and the other one does not. I'm not saying one of the USB 3.0 ports on the *motherboard* works and the other doesn't, I'm saying that on the front panel *itself*, one port works and one doesn't. |
Posted By: kerberos_20
Date Posted: 14 Mar 2018 at 9:56am
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" rel="nofollow - that sounds more like front panel issue if both mobo ports acting same way feel free to rma again or test in in another pc or maybe your usb device doesnt sit in properly? ------------- http://valid.x86.fr/diq4l4" rel="nofollow">  http://www.userbenchmark.com/UserRun/47132492" rel="nofollow - userbenchmark |
Posted By: Vandervecken
Date Posted: 14 Mar 2018 at 10:38am
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As I mentioned, I have already RMAed the front panel, and the new front panel has the same issue. The odds that both front panels are broken is very small. The fact that one port works and one doesn't, when they both link to the mobo via the same connector, is really bizarre. |
Posted By: wardog
Date Posted: 14 Mar 2018 at 11:01am
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" rel="nofollow - Lemme guess. When connected to either USB 3.0 port on the MB it is the same case port that does not function. correct? If so, that's telling me the front panel you've been getting is wired incorrectly, or defective. |
Posted By: Vandervecken
Date Posted: 14 Mar 2018 at 11:19am
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" rel="nofollow - So you're suggesting the most likely problem is that both the original front panel and the replacement front panel suffer from the same defect? Isn't that pretty unlikely? |
Posted By: wardog
Date Posted: 14 Mar 2018 at 1:17pm
I assume, since I haven't read you say it, that on both MB ports the same panel USB port doesn't work. If that's the instance here, then yea. I am. Isn't that pretty unlikely? Yes and no. IMO, that would point to the panel not the MB. I've received staranger oddities that caused me to lose hair over. so............ When connected to either MB connection. Does the same panel USB port not work? . |
Posted By: wardog
Date Posted: 14 Mar 2018 at 1:20pm
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" rel="nofollow - Note: On the panel cables end that plugs into the MB. Is it polarized? Meaning the plug has one corner socket that is covered/blocked? |
Posted By: Vandervecken
Date Posted: 14 Mar 2018 at 9:05pm
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Gotcha. I will test all this and report back. |
Posted By: Vandervecken
Date Posted: 05 Apr 2018 at 10:07am
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It's been a while. The day after my last post, my mother died, so things got a bit busy around here, true story. Anyway, I switched the mobo port the front-panel was connected to (the Asrock has two of them) and now both ports work, so it's probably an issue with the port on the mobo. In any case, I don't think there's any need to pursue further, since I now have a fully working front panel. That, and I have other things on my mind these days. I appreciate the help guys. Vandervecken |