Question Intermittent & selective problems with USB sticks ?

[Cyberat_88]

I have USB sticks it has no problem with and USB sticks that it has no chance of reading. Some are from the same brand or even batch and it will read one but not the other. The "problem" sticks are good in other PCs. Is this a Bios Setup, OPROM and EHCI problem ? Rear has no problems so far with backup storage drives, printer & scanner. Only the front. Sticks elicit no reaction, invisible in Computer Management/Drive, lights on sticks stays off. Any ideas ?

OS: Windows 7 Pro SP1
CPU: AMD FX-8370
GPU: Asus Strix RX-570
MB: Asus Sabertooth 990-FX R2V1
RAM: 16gb Corsair Vengeance XMP-2400
PSU: Corsair RM Gold 850W
Case: Corsair R-400
Bios: 2901.

Current BIOS settings in the USB section:
OPROM: OFF
EHCI: OFF

 

[Colif]

It could be the install of windows itself. I have had USB drives that stopped working with my pc but after a reinstall of windows, the USB started working again.

You could use one of the tools mentioned in this post to make windows forget the USB had ever been attached, it might fix it - https://www.tenforums.com/drivers-h...forget-usb-device-if-i-had-never-plugged.html (they should work for 7)

do you have latest BIOS for motherboard?

 

[Cyberat_88]

Yes, 2901 is the Last Bios for my MB. I've done hidden device cleanup in Device Manager and deleted all ghosts I cannot account for. I have also done USB restart (app.).
Might do the USB forget app. too. Thanks.

 

[Colif]

it could be the USB drivers, only since USB 3 isn't built into windows 7.

are they use 2 or 3 slots? I do see people had problems with usb 3 on board.

 

[fzabkar]

Try attaching them via a USB 2.0 cable.