Acpi\ven_len&dev_4001 -

: Passes custom sleep, hibernation, and dynamic state requests safely to the BIOS.

The hardware ID ACPI\VEN_LEN&DEV_4001 (also recognized as ACPI\LEN4001 ) represents the Lenovo Application Interface Driver. This system component links specialized hardware power management features with Windows operating systems on Lenovo commercial computers. Technical Overview acpi\ven_len&dev_4001

: Integrated into desktop platforms including M720q, M93p, M910s, and M90a. ThinkStation : Deployed on performance desktop workstations. : Passes custom sleep, hibernation, and dynamic state

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The device under this exact hardware ID in most cases. Instead, it’s part of a Lenovo power or chipset driver package. Instead, it’s part of a Lenovo power or

: In Windows, ACPI devices usually have drivers provided by Microsoft as part of the operating system. However, for specific features or for more advanced management capabilities, Lenovo might provide additional drivers or software through their support website.