Genuineintel---intel64-family-6-model-15 - Acpi

The ACPI table reports Family 6 Model 15, but the BIOS has corrupted or incomplete '_PR.CPU' scope. Solution:

Later Core 2 models (Penryn, Family 6 Model 23) have a different model number. Sandy Bridge is Model 42 (0x2A). Haswell is Model 60 (0x3C). So Model 15 is distinctly mid-2000s Core 2 . Acpi Genuineintel---intel64-family-6-model-15

Ensure that "ACPI 2.0" or "Advanced Power Management" is enabled in your BIOS settings. The ACPI table reports Family 6 Model 15,