The string "ACPI GenuineIntel-Intel64 Family 6 Model 58" identifies a specific generation of Intel processors based on the Ivy Bridge microarchitecture. In technical terms, "Family 6" refers to the P6 family, and "Model 58" (0x3A in hex) specifically points to the 22nm Ivy Bridge desktop and mobile chips released around Q2 2012. Core Specifications Architecture: Ivy Bridge (3rd Generation Intel Core). Fabrication Process: 22 nm with 3D Tri-Gate transistors. Common Sockets: LGA 1155 (Desktop). Memory Support: Primarily DDR3 (1333/1600 MHz).
Instruction Sets: x86-64, MMX, SSE4.2, AVX, AES-NI, and F16C. Representative Processors
This model family includes some of the most popular CPUs from the early 2010s:
This specific identifier, ACPI GenuineIntel Family 6 Model 58, refers to the Intel Ivy Bridge microarchitecture (3rd Generation Intel Core processors), specifically those released around 2012.
In the world of system diagnostics, seeing this string usually means you are looking at how the Operating System (OS) identifies the hardware via the Advanced Configuration and Power Interface (ACPI). What is "Family 6 Model 58"?
Intel categorizes its processors using a "Family," "Model," and "Stepping" system.
Family 6: This has been the standard for almost all Intel Core processors since the Pentium Pro.
Model 58 (0x3A): This specific hex code identifies the Ivy Bridge lineup. These were the first chips to use the 22nm manufacturing process and "3D" Tri-Gate transistors. Common Contexts
You likely encountered this technical string in one of the following places:
Device Manager/System Info: Windows uses these identifiers to fetch the correct drivers or microcode updates.
Linux Kernel Logs (dmesg): Linux identifies the CPU capabilities (like Turbo Boost or power states) using this model number during boot.
BSOD or Crash Logs: If your system crashes, the error log often prints the processor ID to help developers know exactly which hardware was running at the time of the fault. Key Legacy Features
If you are still running a "Model 58" machine, you are using a piece of hardware that introduced several modern standards:
PCI Express 3.0: The first Intel chips to natively support the faster PCIe Gen 3. USB 3.0: Integrated support into the chipset (7-series). DirectX 11: Improved integrated graphics (Intel HD 4000). Troubleshooting Tip
If you are searching for this because of a system error or driver issue, you should look for "Intel 3rd Generation Core" or "7-series Chipset" drivers. Most modern operating systems (Windows 10/11 and recent Linux kernels) include these drivers by default, but a BIOS update from your motherboard manufacturer is often the best way to resolve ACPI-related "Model 58" errors. To help you further, could you tell me: Did you find this in a Crash Report or Blue Screen?
Are you trying to find drivers for an older laptop or desktop?
Is the system having trouble waking from sleep or managing power? acpi genuineintel---intel64-family-6-model-58
CPU Profile Report: Intel64 Family 6 Model 58 The identifier Intel64 Family 6 Model 58 refers specifically to the Ivy Bridge microarchitecture, which represents Intel's 3rd Generation Core processor family. This generation, launched around 2012, was the first to use Intel’s 22nm manufacturing process and "3D" Tri-Gate transistors. 1. Processor Identification
Family 6: This is the broad category for almost all modern Intel microarchitectures (P6 through the current Core series).
Model 58 (0x3A): Specifically identifies Ivy Bridge (Client) processors. Common examples include: Desktop: Core i7-3770, i5-3570, i3-3220. Mobile: Core i7-3610QM, i5-3210M. GenuineIntel: Indicates the vendor is Intel Corporation. 2. Understanding ACPI Context
When you see this string in a "useful report" or system log (like dmesg in Linux or msinfo32 in Windows), it is often related to Advanced Configuration and Power Interface (ACPI). ACPI is the bridge between your hardware and the operating system that manages power states (sleep, hibernate) and device discovery. 3. Common Issues & Solutions
If you are seeing this identifier in an error log or a Blue Screen of Death (BSOD), it typically points to one of the following:
ACPI BIOS Error: This indicates a mismatch between the OS and the motherboard's firmware. Because Ivy Bridge is an older architecture, modern operating systems (like Windows 11) may occasionally report ACPI "bugs" that are actually firmware inconsistencies.
Action: Check your motherboard or laptop manufacturer's website for the latest BIOS/UEFI update.
Power Management Conflicts: Errors may occur when the OS tries to put the CPU into a power-saving state (C-states) that the BIOS does not handle correctly.
Action: Try resetting BIOS to "Default Settings" or disabling "Fast Boot" in Windows.
Driver Compatibility: On Windows, ensure you have the latest Intel Chipset Device Software installed to help the OS correctly communicate with the Family 6 Model 58 architecture. 4. Technical Specifications Summary Microarchitecture Ivy Bridge (3rd Gen Core) Instruction Set x86-64 (Intel 64) Lithography Socket Types LGA 1155 (Desktop), rPGA988B (Mobile) Key Technologies AVX 1.0, PCI Express 3.0 (on most models), USB 3.0 support
Are you seeing this identifier because of a specific error message or system crash, and if so, what is the exact text of that error? Decoding Intel processor models reported by Windows
This "blog post" provides an overview and technical breakdown of the hardware identified by the "ACPI GenuineIntel-Intel64 Family 6 Model 58" string, which is commonly seen in Windows Device Manager or system logs.
Decoding Your PC: What is "ACPI GenuineIntel-Intel64 Family 6 Model 58"?
If you’ve ever deep-dived into your Windows Device Manager or run a diagnostic tool like CPU-Z, you might have stumbled across a cryptic string of text: ACPI GenuineIntel-Intel64 Family 6 Model 58
While it looks like a line of code from a sci-fi movie, it’s actually a very specific "ID card" for your computer's brain. Let’s break down what this means and which processor you likely have. The Anatomy of the String
Intel uses a specific numbering system to categorize every chip they make. Here is how to read this specific one: The string "ACPI GenuineIntel-Intel64 Family 6 Model 58"
Stands for Advanced Configuration and Power Interface. It’s the industry standard that allows your operating system (like Windows) to communicate with your hardware to manage power and discover devices. GenuineIntel:
This simply confirms the processor was manufactured by Intel.
This indicates the chip uses a 64-bit architecture, allowing it to handle more than 4GB of RAM and run modern 64-bit software.
This is Intel's "Super Family" for almost all modern consumer processors, spanning from the early Pentium Pro to today's Core i9 series.
This is the most important part. Model 58 is the internal code for the Ivy Bridge
microarchitecture (specifically the 22nm third-generation Intel Core series). Which CPU is this? If your system shows "Model 58," you are running a 3rd Generation Intel Core Processor . Common examples of this family include: Mobile (Laptops): Core i5-3230M, Core i7-3630QM Core i5-3570K, Core i7-3770
These chips were revolutionary when they launched in 2012 because they were the first to use "3D" Tri-Gate transistors, providing a massive jump in power efficiency over the previous generation. Why is this showing up as an error?
Sometimes users see this string in the Device Manager accompanied by a yellow exclamation mark
or an "Unknown Device" warning. This usually happens for one of two reasons: Missing Chipset Drivers:
Windows knows the hardware is there but doesn't have the specific "map" to talk to it. You can usually fix this by visiting the Intel Driver & Support Assistant to automatically find the right chipset software. Intel Management Engine (ME):
Often, this ID is associated with the Intel Management Engine interface. If the driver is missing, the system may report a configuration error.
While "Family 6 Model 58" sounds complex, it’s just technical shorthand for a 3rd Gen Intel "Ivy Bridge"
processor. If your computer is running smoothly, it's just a fun fact about your hardware. If you see it in an error message, a quick chipset driver update from the Official Intel Support Page is usually all you need to get back on track. for this Ivy Bridge model? Acpi Genuineintel---intel64-family-6-model-58 !!better!!
Acpi Genuineintel---intel64-family-6-model-58 !!better!! ~ A Network Blog by a Network Engineer. Search: Fryguy's Blog. The ACPI ( 13.229.104.53 Decoding Intel processor models reported by Windows
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.logacpidump or acpi_osi experimentations.In /proc/cpuinfo or dmesg you might see: dmesg | grep -i acpi
/var/log/kern
ACPI: SSDT 0x... 0009a (v1 GenIntel CpuPm 00003000 INTL 20091013)
Or a custom identifier the kernel uses for quirk handling.
Let me know if you’d like:
The exact triple-dash string is not standard in any major Linux distribution’s clean logs. Searching the internet yields few direct results; those who see it often ask on forums about “strange CPU identifier” or “acpi genuineintel---”. It is likely an artifact of a custom build, an old kernel (2.6.32 era with certain ACPI debug flags), or a poorly written kernel module that prints raw CPUID and ACPI concatenated fields.
Nevertheless, family 6 model 58 is very common in the wild. Millions of Ivy Bridge systems were sold from 2012–2014, and many still run Linux as home servers, media centers, or legacy workstations.
If you have an Ivy Bridge system and notice cores stuck at 800 MHz, the issue is not this string, but rather ACPI thermal or power limit. Check:
cat /proc/cpuinfo | grep "model name"grep -r . /sys/devices/system/cpu/cpu0/cpufreq/intel_pstate=disable or intel_idle.max_cstate=1 on older kernels (pre-3.15) due to a known C6 bug on Model 58.For OS/ACPI developers working with this CPU:
You mentioned "paper" – if you’re looking at a research paper, this string likely came from:
If you share more context from the paper (title, sentence, or figure caption), I can give a more precise explanation of why that string was relevant to the study.
dmidecode + lscpu).The identifier ACPI GenuineIntel Family 6 Model 58 refers to the Intel Ivy Bridge microprocessor architecture
, which was the 3rd generation of Intel Core processors (e.g., Core i3/i5/i7-3xxx). Key Features of Family 6 Model 58 (Ivy Bridge) 22nm Manufacturing Process : This was Intel’s first architecture to use 3D "Tri-Gate" transistors
, significantly improving power efficiency and performance over the previous 32nm Sandy Bridge models. PCI Express 3.0 Support
: Ivy Bridge introduced native support for PCIe 3.0, doubling the bandwidth for discrete graphics cards and high-speed storage compared to PCIe 2.0. Intel HD Graphics 4000/2500 : Featured a much-improved integrated GPU with support for DirectX 11 , OpenGL 4.0, and OpenCL 1.2. DDR3L Support
: Added support for low-voltage DDR3 memory, which helped extend battery life in laptops. Instruction Set Extensions : Includes support for AVX (Advanced Vector Extensions)
, Intel Turbo Boost 2.0, and Hyper-Threading (on supported models). Hardware Random Number Generator : Introduced the
instruction (Intel Secure Key) for high-quality, hardware-based cryptography. Identification Context In ACPI and Windows Device Manager strings:
: Refers to the Intel P6 microarchitecture lineage (which covers almost all modern Intel Core CPUs). Model 58 (0x3A) : Specifically maps to the Ivy Bridge desktop and mobile processors released around 2012–2013. (e.g., i5-3470) or check for driver compatibility
It looks like you’ve provided a string that resembles a processor signature or ACPI identifier, likely extracted from a Linux system log (dmesg, lscpu, or /proc/cpuinfo), or from an ACPI/DSDT table.
Let me break it down for you: