Question Front USB 3 Ports running at USB 2 Speeds

[ankydu]

I have upgraded my system from Intel core i7 3930k on a Asus P9X79 Pro motherboard inside Coolermaster Haf X cabinet to AMD Ryzen 9 9950x3d on a MSI x870e carbon wifi motherboard again inside the same Coolermaster HAF X cabinet. The cabinet has 2 front USB 3.0 ports and 2 USB 2.0 ports. The MSI motherboard has headers for both. I have connected both the cables to the respective headers on the motherboard. Even though all ports are working fine in windows 11, I am getting maximum 37.5mbps speed from the front usb 3 ports which were otherwise giving 100mbps+ speeds for my USB 3 WD My passport 4 tb external hdd with the Asus Intel motherboard. Can anyone help.

 

[COLGeek]

Those old front panel ports often used pretty poor wiring to connect the ports to the motherboard. This is likely the issue.

Try using the back-panel ports to see how much of a difference it makes.

 

[ankydu]

Those old front panel ports often used pretty poor wiring to connect the ports to the motherboard. This is likely the issue.

Try using the back-panel ports to see how much of a difference it makes.

The back panel ports (on the motherboard) work fine giving me normal 100mbps+ usb 3 speeds.

 

[COLGeek]

That confirms, to me anyway, that the front panel wiring is subpar for how you were trying to use those ports.

 

[ankydu]

That confirms, to me anyway, that the front panel wiring is subpar for how you were trying to use those ports.

But it works fine with my old Asus P9X79 Pro motherboard?

 

[COLGeek]

But it works fine with my old Asus P9X79 Pro motherboard?

Maybe the older motherboard could handle the wiring better. Unfortunately, you don't have a lot of options here.

You could look at your BIOS settings to see if the USB headers can be configured in any way.

 

[ankydu]

Maybe the older motherboard could handle the wiring better. Unfortunately, you don't have a lot of options here.

You could look at your BIOS settings to see if the USB headers can be configured in any way.

In bios the only usb options are to disable legacy support and some handshake feature to enable usb 3 support within windows setup. That's about it. But now I remember that my coolermaster haf x cabinet came with a usb 3 extension cable which could connect the back usb ports with the front ones as extension, I will try that only if I can find the cable at my place.

I was thinking could it be the new motherboard at fault?

 

[COLGeek]

Not a motherboard issue, but a case issue.

 

[kerberos_20]

wouldnt poor wiring cause frequent usb disconnects?
maybe wrong driver got loaded?
@ankydu can you check device manager, open drive properties and check what driver its using?
it should be showing uaspstor.sys driver, if it shows usbstor.sys than that would be your culprit

 

[COLGeek]

wouldnt poor wiring cause frequent usb disconnects?
maybe wrong driver got loaded?
@ankydu can you check device manager, open drive properties and check what driver its using?
it should be showing uaspstor.sys driver, if it shows usbstor.sys than that would be your culprit

Not necessarily. They can maintain a connection and provide inadequate power/signal quality at the same time.

 

[DaleH]

I have upgraded my system from Intel core i7 3930k on a Asus P9X79 Pro motherboard inside Coolermaster Haf X cabinet to AMD Ryzen 9 9950x3d on a MSI x870e carbon wifi motherboard again inside the same Coolermaster HAF X cabinet. The cabinet has 2 front USB 3.0 ports and 2 USB 2.0 ports. The MSI motherboard has headers for both. I have connected both the cables to the respective headers on the motherboard. Even though all ports are working fine in windows 11, I am getting maximum 37.5mbps speed from the front usb 3 ports which were otherwise giving 100mbps+ speeds for my USB 3 WD My passport 4 tb external hdd with the Asus Intel motherboard. Can anyone help.

How are you measuring the port speed? What is connected to the port when you are testing it?

 

[ankydu]

wouldnt poor wiring cause frequent usb disconnects?
maybe wrong driver got loaded?
@ankydu can you check device manager, open drive properties and check what driver its using?
it should be showing uaspstor.sys driver, if it shows usbstor.sys than that would be your culprit

You were correct it shows usbstor.sys. How do I fix it??
However, even when I connect the wd drive at tha back usb3 port it still shows the same driver file but with proper speed.

How are you measuring the port speed? What is connected to the port when you are testing it?

I am testing with my WD Passport 4tb external HDD which when connected at the back usb3 ports gives 100mbps+ speeds but from the front USB3 port never goes above 37.5 mbps as shown by windows file transfer dialog box.