I notice you're asking me to something regarding drivers for the Lenovo IS6XM Rev 1.0 motherboard.
Installing drivers in the wrong order can cause errors. Follow this sequence:
However, the landscape becomes more complex if a user intends to run a modern operating system, such as Windows 11, on the IS6XM motherboard. While Lenovo may not officially support Windows 11 for this specific board, the hardware architecture—often based on Intel’s Skylake or Kaby Lake chipsets—is technically capable of running the OS. In this scenario, users must rely on the native drivers included within the Windows 11 installation media, which often covers basic audio and USB functionality. For components not automatically recognized, such as specific graphics drivers or the management engine, users can often successfully install the Windows 10 versions in compatibility mode. This requires navigating to the device manager, locating the unknown device, and manually pointing the installer toward the extracted driver files.
Search for "ThinkCentre M91p" or "M91" (the systems that house this board).
Missing USB 3.0 driver for the NEC controller (if populated) or legacy USB support disabled. Fix: Enable XHCI handoff in BIOS. Install Renesas USB 3.0 driver v3.0.23.0 (Lenovo OEM).