Acpi Genuineintel---intel64-family-6-model-58 !free! Access

Then this _HID is used to match against ACPI device objects of type ACPI_PROCESSOR_DEVICE_HID (which historically was "ACPI0007" ). The kernel uses it for:

This is the CPU vendor string returned by the CPUID instruction (EAX=0 → EBX=0x756e6547, ECX=0x6c65746e, EDX=0x49656e69 → "GenuineIntel" in little-endian). In ACPI CPU objects (like _PDC or _OSC ), the OS passes this string to indicate the processor vendor. acpi genuineintel---intel64-family-6-model-58

: Confirms the processor is manufactured by Intel . Then this _HID is used to match against

Sometimes, this string appears as an error—specifically, a yellow exclamation mark next to "ACPI Genuine : Confirms the processor is manufactured by Intel

The identifier GenuineIntel---intel64-family-6-model-58 is an for an Intel Ivy Bridge processor (family 6, model 0x3A). It is used exclusively by Unix-like kernels (Linux, FreeBSD, possibly Illumos) to apply model-specific power management policies, work around hardware errata, and select the appropriate CPU frequency scaling driver.

Most users search for this keyword because it appears under the "Processors" category in Windows Device Manager, often labeled as "ACPI GenuineIntel Intel64 Family 6 Model 58."