Acpi Genuineintel---intel64-family-6-model-140 May 2026

cat /sys/firmware/acpi/tables/DSDT | strings | grep GenuineIntel 5.1. Performance & Scheduling Alder Lake (model 140) has Intel Thread Director (ITD) for hybrid core management. The OS must properly interpret ACPI-reported topology to avoid scheduling background tasks on P-cores unnecessarily.

: Kernel ≥5.18 has proper Alder Lake hybrid support. Windows 11 : Required for optimal scheduling; Windows 10 may not utilize ITD fully. 5.2. Virtualization When exposing this CPU to VMs, the hypervisor may emulate ACPI tables and present ACPI GenuineIntel---Intel64-family-6-model-140 . Guest OS might then expect hybrid architecture features even if not passed through. 5.3. Power Management ACPI with this model will likely advertise deeper C-states (C10) and support for Intel Speed Shift (HWP). Ensure intel_pstate driver is active on Linux. 6. Troubleshooting Scenarios Symptom : ACPI errors mentioning this string during boot on older kernels. Cause : Kernel lacks Alder Lake CPUID model 140 in its cpufreq or idle driver lists. Fix : Update kernel ≥5.16 (or ≥5.18 for full hybrid support). Acpi Genuineintel---intel64-family-6-model-140

dmesg | grep -i "acpi.*genuineintel" Or via: : Kernel ≥5

1. Overview The string ACPI GenuineIntel---Intel64-family-6-model-140 appears in system logs, CPU identification routines, or ACPI (Advanced Configuration and Power Interface) tables on x86_64 systems. It is not a random string but a structured identifier providing specific details about the CPU architecture, vendor, family, and model stepping as recognized by the ACPI firmware. 2. Breakdown of Components | Component | Value | Meaning | |-----------|-------|---------| | ACPI | N/A | Indicates the identifier originates from ACPI namespace or tables (_PDC, _OSC, or processor objects). | | Vendor | GenuineIntel | Confirms the CPU is manufactured by Intel. | | Architecture | Intel64 | Supports Intel 64-bit architecture (AMD64 compatible). | | Family | 6 | Hex 0x06 – signifies the core microarchitecture family (not the legacy 86 family). Modern Intel CPUs use family 6. | | Model | 140 | Hex 0x8C – specific model number within family 6. | 3. CPU Identification: Family 6, Model 140 3.1. Determining the Processor Generation Intel family 6 covers all modern Core, Xeon, Atom, and Pentium/Celeron designs from Pentium Pro (1995) to present. Model numbers are unique per microarchitecture. Virtualization When exposing this CPU to VMs, the