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Z390 Pro4 and USB internal headers

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CrazyDron View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrazyDron Quote  Post ReplyReply Direct Link To This Post Topic: Z390 Pro4 and USB internal headers
    Posted: 29 Feb 2024 at 2:25am
Good day everyone.

About three years ago I noticed that USB2 ports on my chassis doesn't work.
They are connected to the USB_3_4 and USB_5 headers.

I've tried to connect external cardreader to the 3_4 - no reaction. Plugged devices looks like unpowered.

All USB ports into the BIOS are enabled. Try to swith them on/off - no effect.

Today I remember this situation, and try to load UEFI Defaults - clear all settings.
No effect at all. BIOS version is 4.70 - latest.
Ports at back of MB (rear panel) works fine. All of them, except C-port (I hasn't this devices), so I think controller and hubs works fine. Win11 reports one hub to all ports (USB 3.1 Root hub).

As I remember (but it's not exactly) - F_AUDIO connector not working too.

So - two questions:
1. Is it a damage of MB? Very strange damage. How to check it without visiting service?
2. How to check USB3 connectors without plugging devices? If they works, I simply buy USB3 racks to front panel and forget this situation at all.

Thanks.
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Xaltar View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 29 Feb 2024 at 6:04pm


The connectors marked in blue are your USB 3.x ports, check to make sure there are
no bent over pins etc in them.
The connector marked in light brown is your front panel header (power, reset, LEDs).
Double check the pinout in your manual and make sure you have the polarities correct
on the LEDs. LEDs connected with the wrong polarity or to the wrong pins can cause
issues sometimes.

By the sound of it I would check your case front panel cables, there could be
a break or short/damage on them. It's not uncommon for these to get pinched and
short out or break inside the insulation where you can't see it.

Given the locations around the board it would be unlikely that he board is the
issue. You can check the traces going to and from the USB ports and effected headers.
It is possible some may have been cut/damaged with improper handling, it should
be pretty obvious with a magnifying glass. My first thought is the front panel
cables from the case however, they could have been pulled and come loose at the
ports or broken inside the insulation.

Good luck
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrazyDron Quote  Post ReplyReply Direct Link To This Post Posted: 02 Mar 2024 at 3:07am
Originally posted by Xaltar Xaltar wrote:

The connectors marked in blue are your USB 3.x ports, check to make sure there are
no bent over pins etc in them.
The connector marked in light brown is your front panel header (power, reset, LEDs).
Double check the pinout in your manual and make sure you have the polarities correct
on the LEDs. LEDs connected with the wrong polarity or to the wrong pins can cause
issues sometimes.

By the sound of it I would check your case front panel cables, there could be
a break or short/damage on them. It's not uncommon for these to get pinched and
short out or break inside the insulation where you can't see it.

Given the locations around the board it would be unlikely that he board is the
issue. You can check the traces going to and from the USB ports and effected headers.
It is possible some may have been cut/damaged with improper handling, it should
be pretty obvious with a magnifying glass. My first thought is the front panel
cables from the case however, they could have been pulled and come loose at the
ports or broken inside the insulation.

Good luck

Thanks for answers.

Front panel header doesn't changes from 2019, when it was bought.
All diods at case works as usual, power/reset buttons too, so I think this in not a reason.

USB3 connectors are fine. No crossed pins, no any foreign objects in it.

Case cables? Maybe, but you read my post inattentivly.
I wrote that I connect another internal USB cardreader into USB_3_4, and it didn't work.

Board traces? Maybe, but these connectors goes out at one time, and case was closed ant nothing happens inside. No cockroaches/mouses/rats and so on.
Checking is a problem, because I have a lot of cables, almost all of them at a bottom - in that place.

So, I order USB3 cardreader (6$ is not a money). When it arrives, I'll write here.

Thanks again

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Xaltar View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Xaltar Quote  Post ReplyReply Direct Link To This Post Posted: 03 Mar 2024 at 12:22am
Ah, I see what you are saying now. I believe some USB ports are provided by the
chipset and others are provided by a separate controller, Nuvoton I believe. If the
Nuvoton controller is damaged or dead that could be the cause behind your issue.
I think (can't say for sure as I can't read the model on the chip) it's the chip
next to the M.2 Wifi slot. You can check it for damage to the pins or the chip
itself.
The ports provided by the chipset shouldn't be effected at all so you still have
the option to use a USB hub if you need more ports, at worst, you can throw in
a PCIe x1 USB card.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote CrazyDron Quote  Post ReplyReply Direct Link To This Post Posted: 06 Mar 2024 at 2:43am
Xaltar, this MB hasn't additional USB controller. Nuvoton is probably a sensor controller.

Anyway, my cardreader has arrived, and USB3_3_4 definitely works. It's good. About USB3_5_6 - not tried.

But - USB2 headers didn't work at all.
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