Question I bumped the USB cable during data transfer and now all my USB ports are slow ?

[jimmy85_42]

Motherboard: Asus TUF GAMING B760M-PLUS WIFI II Micro ATX LGA1700
CPU: Intel Core i5-14400F 2.5 GHz 10-Core
CPU Cooler: Cooler Master Hyper 622 Halo 51.88 CFM
RAM: Corsair Vengeance 32 GB (2 x 16 GB) DDR5-6000 CL36
Storage: Crucial P3 Plus 2 TB M.2-2280 PCIe 4.0 X4 NVMe SSD
Case: Fractal Design Pop Mini Air MicroATX Mid-Tower
PSU: Corsair RM750e (2023) 750 W 80+ Gold Certified Fully Modular ATX

I recently built the above and it has been working perfectly for a few weeks now.
I was transferring files to an external USB3 WD Passport 3TB HDD attached to a case USB3 port and I bumped the cable which promptly disconnected the drive.

Now, not only do the case usb ports not work (provides power but PC won't recognise any attached drives) but even the rear ports on the motherboard won't transfer faster than 34mb/s, whereas I was getting 54mb/s before I bumped the cable.

I've tested all the ports with other cables and drives, and I noticed some of the ports on the back (usb2) wouldn't detect my external drives either. I'm really puzzled why the motherboard ports are acting like this now and I'm annoyed that the usb ports on my brand new case are now apparently broken from a slight bump. Any way I can fix this?

 

[Bob.B]

Motherboard: Asus TUF GAMING B760M-PLUS WIFI II Micro ATX LGA1700
CPU: Intel Core i5-14400F 2.5 GHz 10-Core
CPU Cooler: Cooler Master Hyper 622 Halo 51.88 CFM
RAM: Corsair Vengeance 32 GB (2 x 16 GB) DDR5-6000 CL36
Storage: Crucial P3 Plus 2 TB M.2-2280 PCIe 4.0 X4 NVMe SSD
Case: Fractal Design Pop Mini Air MicroATX Mid-Tower
PSU: Corsair RM750e (2023) 750 W 80+ Gold Certified Fully Modular ATX

I recently built the above and it has been working perfectly for a few weeks now.
I was transferring files to an external USB3 WD Passport 3TB HDD attached to a case USB3 port and I bumped the cable which promptly disconnected the drive.

Now, not only do the case usb ports not work (provides power but PC won't recognise any attached drives) but even the rear ports on the motherboard won't transfer faster than 34mb/s, whereas I was getting 54mb/s before I bumped the cable.

I've tested all the ports with other cables and drives, and I noticed some of the ports on the back (usb2) wouldn't detect my external drives either. I'm really puzzled why the motherboard ports are acting like this now and I'm annoyed that the usb ports on my brand new case are now apparently broken from a slight bump. Any way I can fix this?

Unplug the front usb ports from the mobo.

Test the rear usb ports.

 

[JohnBonhamsGhost]

was transferring files to an external USB3 WD Passport 3TB HDD attached to a case USB3 port and I bumped the cable which promptly disconnected the drive

it's possible that the case USB cables connected to the motherboard have come somewhat loose.

if they are tight, or strained in placement, they could even have damaged the pins on the motherboard when the system was bumped.

try disconnecting & firmly reconnecting in place and see if it makes any difference with their(the case's) USB port usage.

 

[jimmy85_42]

it's possible that the case USB cables connected to the motherboard have come somewhat loose.

if they are tight, or strained in placement, they could even have damaged the pins on the motherboard when the system was bumped.

try disconnecting & firmly reconnecting in place and see if it makes any difference with their(the case's) USB port usage.

I really doubt it, the cable from the front ports is pretty long and my cable management has it anchored at several points before it even gets to the mobo. I will try all suggestions today though.

 

[jimmy85_42]

Disconnected front usb, rear ports went up to 101mb/s. Re-seated the front USB cable onto the motherboard and now they're working again! 🥳 So glad I didn't break my brand new build! Thanks for the help guys.

Side note, I'm getting 101mb/s on the rear and 54mb/s on the case USB, both supposedly USB3.0. I know case usb is normally slower due to power, but nearly half as fast?

 

[BFG-9000]

USB 3.0 normally falls back to USB 2.0 speeds if something happens to interrupt the connection.

Often it just takes a reboot to get things working at full ("Super") speed again, but in rare cases this fails and I've had to unplug and replug internal cables on a running computer before it would work again.

If your internal cables are thin and unshielded then not only are they radiating 2.5GHz to interfere with Wifi, but such frequencies can interfere with signals in the cable. This is why USB 3.0 ports and traces on wireless routers are so heavily shielded inside with a metal can and copper tape. PC rear ports tend to have very short traces along a PCB with copper ground planes, as well as a metal covered port. Whereas the long cable to the front ports is supplied by the case manufacturer who does not need to file any FCC RF interference test documents.

You could always try wrapping the cable with copper foil shielding tape. While USB 2.0 works perfectly well to its rated 5 meter cable length limit, I've never had luck with USB 3.0 speeds at anywhere near its 3 meter rated limit, and even 1 meter has sometimes been iffy with high-quality thick shielded cables.