Have a server. Dell R720. Install a USB 3 PCIe card, fans speed up to twice their normal (without PCIe) speed. The USB 3.0 USB controller is running as is, no additional power connected to it. Does the server need a firmware update? Fans are running at 5200 RPM right now with the PCIe card installed. Without the PCIe card, they run at 2200 RPM....any experience in this? I do not see any updates needed, all are current via Open Manage and iDrac.