I have a Dell XPS 8300 that I recently tried to upgrade by adding a 2-port USB 3.0 PCIe card. There were two free PCIe slots next to the graphics card, and a free connector I could use for power, so I ordered a PCI card and a front panel & installed it according to instructions. However, the computer doesn't seem to recognize that a new USB controller has been installed at all - no yellow exclamation marks, Scan Hardware doesn't produce anything new. The only thing that *does* happen is that the PC automatically installs a "PCI Bridge" driver for intel 6 series/c200 family pci express root port 2. I highlight below in the Device Manager the exact component:
Meanwhile, the USB section doesn't show any USB 3.0 ports or controllers:
Things I have Tried
- Used two different power cables. Measured voltage on both. Should be both working.
- Tried the card in two different PCI slots. Same results.
- Upgraded BIOS from A05 to A06. Did not see any BIOS options to enable or disable PCI slots.
EDIT: Once I disconnected the USB 3.0 front panel from the USB card, the system properly detected the PCIe USB 3.0 card and the back ports worked. However, the minute I connected the 20pin connector between the two, the system once again repeated the behaviour.
If anyone can offer any insight as to why this is happening, that would be greatly appreciated.
Meanwhile, the USB section doesn't show any USB 3.0 ports or controllers:
Things I have Tried
- Used two different power cables. Measured voltage on both. Should be both working.
- Tried the card in two different PCI slots. Same results.
- Upgraded BIOS from A05 to A06. Did not see any BIOS options to enable or disable PCI slots.
EDIT: Once I disconnected the USB 3.0 front panel from the USB card, the system properly detected the PCIe USB 3.0 card and the back ports worked. However, the minute I connected the 20pin connector between the two, the system once again repeated the behaviour.
If anyone can offer any insight as to why this is happening, that would be greatly appreciated.
Facebook
Twitter
Instagram