. This component is part of the Intel chipset and is responsible for managing low-speed communication between your motherboard and internal hardware like temperature sensors and fans. Essential Driver Information Hardware Name: Intel(R) 8 Series/C220 Series SMBus Controller - 8C22. Manufacturer: Primary Function:
Lenovo-specific implementation (commonly found in ThinkPad models like the T440, T540p, or W540). Revision (REV_04): Specific hardware stepping/version. What does "Patched" mean?
Update or disable conflicting hardware monitoring software; ensure the SMBus driver version matches your system architecture. pci ven8086 ampdev8c22 ampsubsys309f17aa amprev04 patched
You might see:
To fix system hangs, WiFi dropouts, or NVMe stability issues, you might patch the root port to disable ASPM L1 substates. This ID typically corresponds to an
[Manufacturer] %INTEL%=INTEL_System, NTamd64
This guide provides a comprehensive overview of addressing driver issues related to the specific PCI hardware ID PCI\VEN_8086&DEV_8C22&SUBSYS_309F17AA&REV_04 . This ID typically corresponds to an , which often appears as an "Unknown Device" or an exclamation mark in Device Manager on older HP or similar laptops running Windows 10 or 11. or NVMe stability issues
If patched, the dmesg output would show:
Method 1: Manual Installation via Device Manager (Recommended)