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- HP Community
- Desktops
- Desktop Hardware and Upgrade Questions
- Top Front Panel USB 3.0 questions

Create an account on the HP Community to personalize your profile and ask a question
08-27-2019 07:18 AM
Does anyone have the pinout for the Top Front Panel USB 3.0 connector situated on Top I/O Ports from HP Envy 750-003nl Case?
This USB 3.0 port have an active cable, with USB 3.0 redriver ICs inside?
Is there a pinout differrence between USB 3.0 and USB 3.1 cables?
Why i ask is because no matter cable attached (USB 3.0 to USB 2.0) to that cable port or plugged in directly on different motherboards is not working.
08-29-2019 05:04 PM
Have you tried different devices with the ports?
If nothing works, run a hardware test - extensive test and revert with the results.
1. Turn on the computer.
2. Immediately press the f2 key repeatedly, about once every second, until the UEFI menu opens.
When the UEFI menu opens, select the diagnostic test you want to run, and then follow the on-screen instructions.
And usually there is one cable that connects both USB 3.0 & 3.1 to the motherboard, however, we neither recommend nor support repairing the ICs inside or the cables inside the desktop.
Keep me posted.
Have a great day!
Cheers 🙂
Raj1788
I am an HP Employee
08-30-2019 02:10 AM - edited 08-30-2019 05:53 AM
Hi, thanks for answer...few months ago i was forced to replace the motherboard that was shipped with HP Envy Case because one sata port was broken and i replaced with an ASUS Z97m-plus motherboard and when i pluged in the USB 3.0 cable don't do anything, not even an cable adapter from USB 3.0 to USB 2.0 port not working.
The USB 3.1 port from ASUS motherboard works with another USB 3.0 front hub, so is not a setting from BIOS.
I have problem with only USB 3.0 from the internal port of motherboard not from rear USB 3.0 ports.
08-30-2019 10:30 AM
I don't have the motherboard layout/voltage information, I would personally suggest you contact our HP Support.
Click here: https://support.hp.com/us-en/contact-hp?openCLC=true
Make sure you select the Country and Region.
Keep me posted on further assistance. Hope that helps!
Have a great day ahead!
Raj1788
I am an HP Employee