Incorrect connection detected on the USB 3.0 header for pin A_P2_SSTX+
Incorrect connection detected on the USB 3.0 header for pin A_P2_SSTX+
The motherboard header features two horizontal lines with pins, each line assigned to a separate USB port. The line marked P1 corresponds to USB port 1, while the adjacent line with P2 is for port 2. Vbus and GND remain unlabeled with P1 or P2 since they serve the same purpose—providing 5V and ground (negative, return for electricity). The pins labeled with SS are designated as superspeed connectors (exceeding USB 2.0’s 480 Mbps, USB 3.0 reaches 5 Gbps). TX indicates transmission, while RX denotes reception. Essentially, TX and TX+ transmit data to the connected device, whereas RX and RX+ receive it. If the SS TX pin is absent, that port won’t support USB 3.0 speeds and will revert to USB 2.0, though the controller might still disconnect it if it detects an issue. In a setup with only one USB port functioning, it’s likely the case uses the alternate row of pins that lacks the faulty SS TX pin. If your setup has only one port and it works, you’re probably lucky—the connector inside may be using the other row, which doesn’t have a damaged SS TX pin. Should you encounter problems, applying a protective coating to the 3-4 SS pins (SS_TX and SS_RX) could help, allowing the device to communicate via standard 480 Mbps connections. The TX and RX pins shielded would prevent the controller from responding or sending data, ensuring USB 2.0 performance remains stable.
It's possible your device functioned properly since the operating system identified it as USB 2.0 rather than USB 3.0.
I just verified the port using a budget USB 2.0 to SATA enclosure, and it passed the CrystaldiskMark test. I also tried it with a USB 3.2 Gen 1 Sandisk Flash drive—read speeds reached 150MB/s and write speeds hit 20MB/s. This suggests the USB 3.0 port might be handling USB 3.0 devices, while USB 2.0 is limited to USB 2.0 devices. It’s frustrating that this limitation affects compatibility.