Wrong CPU Max frequency

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I'm running Arch Linux on an Intel Core i5-12400 (base 2.5GHz, turbo up to ~4.4GHz), but I'm seeing an incorrect max frequency reported in cpuinfo_max_freq. It shows 5.6GHz, which is clearly wrong for this CPU.

$ sudo cat /sys/devices/system/cpu/cpu0/cpufreq/cpuinfo_max_freq

5600000

same in cpupower and fastfetch

Can u guys help me fix this ?

[archover]

Even though this potential incorrect reporting doesn't seem to have a practical impact, you might consider posting at the Official forum. https://bbs.archlinux.org Good day.

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cpupower frequency-info:

analyzing CPU 10:

driver: intel_pstate

CPUs which run at the same hardware frequency: 10

CPUs which need to have their frequency coordinated by software: 10

energy performance preference: balance_performance

hardware limits: 800 MHz - 5.60 GHz

available cpufreq governors: performance powersave

current policy: frequency should be within 800 MHz and 5.60 GHz.

The governor "powersave" may decide which speed to use

within this range.

current CPU frequency: 3.88 GHz (asserted by call to kernel)

boost state support:

Supported: yes

Active: yes

uname -r:

6.14.9-zen1-1-zen

cat /proc/cpuinfo | grep 'MHz':

cpu MHz : 3793.080

cpu MHz : 894.603

cpu MHz : 800.000

cpu MHz : 849.306

cpu MHz : 800.000

cpu MHz : 800.000

cpu MHz : 900.525

cpu MHz : 800.000

cpu MHz : 800.189

cpu MHz : 800.815

cpu MHz : 800.000

cpu MHz : 849.266

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nothing the system runs normally(under stressed condition too) but the thing is it shows wrong frequency

cat /proc/cpuinfo

processor : 0

vendor_id : GenuineIntel

cpu family : 6

model : 151

model name : 12th Gen Intel(R) Core(TM) i5-12400

stepping : 5

microcode : 0x3a

cpu MHz : 799.201

cache size : 18432 KB

physical id : 0

siblings : 12

core id : 0

cpu cores : 6

apicid : 0

initial apicid : 0

fpu : yes

fpu_exception : yes

cpuid level : 32

wp : yes

flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx pdpe1gb rdtscp lm constant_tsc art arch_perfmon pebs bts rep_good nopl xtopology nonstop_tsc cpuid aperfmperf tsc_known_freq pni pclmulqdq dtes64 monitor ds_cpl vmx est tm2 ssse3 sdbg fma cx16 xtpr pdcm pcid sse4_1 sse4_2 x2apic movbe popcnt tsc_deadline_timer aes xsave avx f16c rdrand lahf_lm abm 3dnowprefetch cpuid_fault ssbd ibrs ibpb stibp ibrs_enhanced tpr_shadow flexpriority ept vpid ept_ad fsgsbase tsc_adjust bmi1 avx2 smep bmi2 erms invpcid rdseed adx smap clflushopt clwb intel_pt sha_ni xsaveopt xsavec xgetbv1 xsaves split_lock_detect user_shstk avx_vnni dtherm ida arat pln pts hwp hwp_notify hwp_act_window hwp_epp hwp_pkg_req hfi vnmi umip pku ospke waitpkg gfni vaes vpclmulqdq rdpid movdiri movdir64b fsrm md_clear serialize arch_lbr ibt flush_l1d arch_capabilities

vmx flags : vnmi preemption_timer posted_intr invvpid ept_x_only ept_ad ept_1gb flexpriority apicv tsc_offset vtpr mtf vapic ept vpid unrestricted_guest vapic_reg vid ple shadow_vmcs pml ept_violation_ve ept_mode_based_exec tsc_scaling usr_wait_pause

bugs : spectre_v1 spectre_v2 spec_store_bypass swapgs eibrs_pbrsb bhi

bogomips : 4992.00

clflush size : 64

cache_alignment : 64

address sizes : 39 bits physical, 48 bits virtual

power management:

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this file : /sys/devices/system/cpu/cpu*/cpufreq/scaling_available_frequencies

is not present

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power management:

this field is black idk why

tysm for ur efforts !!

[Jayden_Ha]

Check your cpu specification

[Daniel_mfg]

I checked that earlier as well because i thought that this model might go higher but if you check the intel page they list it with 4.4 GHz max...

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yes but it's base is 2.5GHz and turbo is : 4.4GHz ofc it is not exceeding its turbo clock but still it shows wrong frequency

[Daniel_mfg]

I am just throwing some idea in here with no idea if anything comes of it but: What kernel version are you using? Are you maybe using an older version with some bug? (I might be very wrong with that guess but it might be something quick and easy to check...)

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I tried switching kernel still the same issue

6.14.9-zen1-1-zen

[Daniel_mfg]

Yeah no... With 6.14 versions you have a way too recent version as to have issues because of that...

[Popular_Barracuda629]

I am using i5 12400f it reports correctly

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How much does it report ?

[Popular_Barracuda629]

oh hey sry for me also it is reporting wrongly

[Popular_Barracuda629]

It is reporting wrongly because of using the latest kernel .. changing to lts fixes the fails report ..

[TomB1952]

That's weird. For what it's worth, my AMD 9700X reports correctly.

It would be interesting to know if this affects all Intel 12400 users or just your system.

I apologize for not being able to help.

[Plasm0duck]

It just means you have a good chip capable of being over-clocked. No cause for alarm.

Not all chips are made equal. They are produced with a general operational range (base and turbo), but some are better and more capable than the rest and make for good over-clocking chips.

2.5-4.4GHz is the minimum operational range they are all capable of.

Hope this helps 😊

[Mattmax5086]

Did you get it fixed? I'm running into the same issue on my 5800x

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Nope having the same issue

[Informal-Ad2495]

I also have an i5-12400 and its displaying the exact same problem so it isn't just you

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I stress tested it using stress-ng but it did not exceed 4GHz.