Acpi Genuineintel---intel64-family-6-model-58 [TOP]

The technical string ACPI\GenuineIntel_-_Intel64_Family_6_Model_58 is a hardware identifier used by operating systems like Windows to identify your processor and its power management capabilities.

This specific identifier corresponds to the Intel Ivy Bridge architecture, which is the 3rd Generation of Intel Core processors. What the ID Tells You

Breaking down the identifier provides specific technical details about your CPU:

ACPI: Stands for Advanced Configuration and Power Interface. It is the standard that allows your operating system to control hardware power states, such as putting the computer to sleep or saving power when idle. GenuineIntel: Confirms the manufacturer is Intel.

Intel64: Indicates the processor supports 64-bit architecture, allowing it to use more than 4GB of RAM and run 64-bit applications.

Family 6, Model 58: This is the specific internal signature for the Ivy Bridge microarchitecture released around 2012. Common Processors in This Family

If you see this ID, you likely have one of the following popular 3rd Gen Intel CPUs: Core i7-3770 Go to product viewer dialog for this item.

/ 3770K: A powerful 4-core, 8-thread desktop processor frequently used in high-end builds. Core i5-3570 Go to product viewer dialog for this item. / 3470: Standard 4-core desktop processors. Core i5-3230M Go to product viewer dialog for this item. : A common mobile (laptop) version of this architecture. Why This Identifier Appears acpi genuineintel---intel64-family-6-model-58

You typically encounter this string in the Windows Device Manager or during driver installation. If it appears as an "Unknown Device" or has a yellow exclamation mark, it usually means the Intel Chipset Device Software needs to be updated so the system can properly manage the processor's power features.

The string "ACPI GenuineIntel Family 6 Model 58" looks like a cryptic line of code, but it is actually the digital "birth certificate" for a specific generation of Intel processors. This identifier points to the Ivy Bridge

architecture, specifically the 3rd Generation Intel Core processors (like the popular i5-3570K or i7-3770K) released around 2012. Here is a breakdown of what this technical label tells us about a computer's "brain" and how it communicates with the rest of the system. The Breakdown of the Label

To understand this essay's subject, we have to decode the nomenclature:

This stands for Advanced Configuration and Power Interface. It is the bridge between the hardware and the operating system, allowing your software to tell the hardware when to sleep, wake up, or throttle power to save battery. GenuineIntel / Intel64:

This confirms the manufacturer and the 64-bit instruction set, which allows the computer to use more than 4GB of RAM—a standard for modern computing. Family 6, Model 58:

This is the specific "DNA" marker. In Intel’s world, Family 6 covers almost all modern microarchitectures, but (or 3A in hexadecimal) specifically identifies Ivy Bridge chips built on the 22nm process. Historical Significance Part 3: Why ACPI Needs to Know the

When Model 58 hit the market, it represented a "Tick+" in Intel’s famous "Tick-Tock" development cycle. It was the first time the world saw 3D Tri-Gate transistors

. Instead of being flat, transistors were built upward, allowing more of them to fit into a smaller space. This made computers faster and significantly more energy-efficient than the "Sandy Bridge" models that came before. Why It Still Matters

Even a decade later, you will still see this string in Windows Device Manager or Linux system logs. It serves as a reminder of a period where Moore’s Law was in full swing. These processors were so robust that many are still in use today for basic office work, home servers, or budget gaming builds.

In short, "Model 58" isn't just a number; it represents the transition to the 22-nanometer era and the foundation of the power-management features we take for granted in laptops today. of these specific chips or help you troubleshoot a driver issue related to this ACPI string?

The string "acpi genuineintel---intel64-family-6-model-58" refers to an Advanced Configuration and Power Interface (ACPI) hardware identifier for an Intel Ivy Bridge processor. Hardware Report: Intel Family 6 Model 58

This specific model corresponds to the 3rd Generation Intel Core (Ivy Bridge) architecture, manufactured using 22nm technology. Architecture: Ivy Bridge Microarchitecture: Intel64 Key Features:

Introduction of 22nm Tri-Gate transistor technology, which improved efficiency by nearly 20% over Sandy Bridge. For this CPU

Support for AVX (Advanced Vector Extensions), SSE4.2, POPCNT, and AES-NI instruction sets.

Standardized thermal envelopes for desktop products (typically 35W to 77W TDP).

Integrated Graphics: Commonly paired with Intel HD Graphics 4000 or 2500. Common CPU Examples: Mobile: Core i5-3230M, Core i7-3630QM. Desktop: Core i7-3770K, Core i5-3570, Core i3-3220. Common Issues & Maintenance

If you are seeing this string in a system error or diagnostic log, it usually relates to power management or driver compatibility.

Part 3: Why ACPI Needs to Know the CPU Model

ACPI is not just about suspending to RAM. It controls:

C-states (processor idle sleep states)
P-states (performance states via _PSS objects)
Thermal throttling (via _TSS and _TC1/_TC2)
CPU hotplug in server environments

The problem is that Intel CPUs evolve rapidly, and each microarchitecture handles power transitions slightly differently. ACPI tables (the DSDT/SSDT) are written by the motherboard vendor (BIOS/UEFI) and are often generic. The Linux kernel, upon boot, reads the ACPI tables, then checks the actual CPUID. When it sees family=6, model=58, it knows:

This is an Ivy Bridge-era CPU.
It supports specific C-state latency quirks (e.g., deeper C6 states may cause unresponsiveness if not properly gated).
The intel_idle driver should use a predefined state table for Model 58 instead of relying on the ACPI _CST object.

Thus, the string appears during the acpi_processor_add() function when the kernel prints:

ACPI: Processor [CPU0] (supports 8 throttling states, 8 performance states, 2 C-states)
acpi genuineintel---intel64-family-6-model-58

This is a debug-level message (not error or warning). It tells the developer that the ACPI subsystem has successfully mapped the generic "Processor" object to a real Intel CPU with known behavior.

2.1 Linux kernel ACPI processor registration

When the kernel initializes ACPI, it examines each processor object (\PR_ or _SB_.PRxy). The acpi_processor_get_info() function prints or matches the CPUID against ACPI IDs. You might see similar strings in:

dmesg | grep -i acpi
/var/log/kern.log
Debug outputs from acpidump or acpi_osi experimentations.

ACPI P-State Coordination

For this CPU, _PCT (Performance Control) points to the functional fixed hardware interface: MSR 0x199.
_PDC (Processor Driver Capabilities) – The OS passes capabilities to BIOS via _PDC. For model 58, OS sets bit 0 (P-state coordination), bit 2 (C-state coordination via MWAIT).