Coretemp Cpu

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  1. Cpuid Core Temp
  2. Core Temp Cpu Z
  3. Core Temp Cpu Temp

SolarWinds CPU Load Monitor. Best for monitoring and graphing the load on multiple Cisco routers.

  • Is Core Temp safe? But just because your processor is 10 degrees under the maximum doesn’t mean you’re safe. The Core Temp FAQ states that the temperature should be kept around 20° C/68° F or lower below its Tj. Value while under full load.
  • Run core temp and disable 'Start Core Temp with windows' enable 'start minimized' enable 'enable plugins' if using the vista sidebar gadget or anything that needs CT access. All other options are at the discretion of the user. Remove the program from the Startup folder or any RUN/STARTUP registry key.
  • AMD processors report the temperature via a special register in the CPU's northbridge. Core Temp reads the value from the register and uses a formula provided by AMD to calculate the current temperature. The formula for the Athlon 64 series, early Opterons and Semprons (K8 architecture) is: 'Core Temp = Value - 49'.
Supported chips:

Cpuid Core Temp

Coretemp CpuCpu
  • All Intel Core family

    Prefix: ‘coretemp’

    CPUID: family 0x6, models

    • 0xe (Pentium M DC), 0xf (Core 2 DC 65nm),

    • 0x16 (Core 2 SC 65nm), 0x17 (Penryn 45nm),

    • 0x1a (Nehalem), 0x1c (Atom), 0x1e (Lynnfield),

    • 0x26 (Tunnel Creek Atom), 0x27 (Medfield Atom),

    • 0x36 (Cedar Trail Atom)

    Datasheet:

    Intel 64 and IA-32 Architectures Software Developer’s ManualVolume 3A: System Programming Guide

Author: Rudolf Marek

Description¶

This driver permits reading the DTS (Digital Temperature Sensor) embeddedinside Intel CPUs. This driver can read both the per-core and per-packagetemperature using the appropriate sensors. The per-package sensor is new;as of now, it is present only in the SandyBridge platform. The driver willshow the temperature of all cores inside a package under a single devicedirectory inside hwmon.

Temperature is measured in degrees Celsius and measurement resolution is1 degree C. Valid temperatures are from 0 to TjMax degrees C, becausethe actual value of temperature register is in fact a delta from TjMax.

Temperature known as TjMax is the maximum junction temperature of processor,which depends on the CPU model. See table below. At this temperature, protectionmechanism will perform actions to forcibly cool down the processor. Alarmmay be raised, if the temperature grows enough (more than TjMax) to triggerthe Out-Of-Spec bit. Following table summarizes the exported sysfs files:

All Sysfs entries are named with their core_id (represented here by ‘X’).

tempX_input

Core temperature (in millidegrees Celsius).

tempX_max

All cooling devices should be turned on (on Core2).

tempX_crit

Maximum junction temperature (in millidegrees Celsius).

tempX_crit_alarm

Set when Out-of-spec bit is set, never clears.Correct CPU operation is no longer guaranteed.

tempX_label

Contains string “Core X”, where X is processornumber. For Package temp, this will be “Physical id Y”,where Y is the package number.

Core Temp Cpu Z

Cpu

On CPU models which support it, TjMax is read from a model-specific register.On other models, it is set to an arbitrary value based on weak heuristics.If these heuristics don’t work for you, you can pass the correct TjMax valueas a module parameter (tjmax).

Cpu-z vs coretempCpu

Appendix A. Known TjMax lists (TBD):Some information comes from ark.intel.com

Core Temp Cpu Temp

Process

Processor

TjMax(C)

22nm

Core i5/i7 Processorsi7 3920XM, 3820QM, 3720QM, 3667U, 3520Mi5 3427U, 3360M/3320Mi7 3770/3770Ki5 3570/3570K, 3550, 3470/3450i7 3770Si5 3570S/3550S, 3475S/3470S/3450Si7 3770Ti5 3570Ti5 3470T

105105105105103103949491

32nm

Core i3/i5/i7 Processorsi7 2600i7 660UM/640/620, 640LM/620, 620M, 610Ei5 540UM/520/430, 540M/520/450/430i3 330E, 370M/350/330i3 330UM

9810510590 rPGA, 105 BGA105

32nm

Core i7 Extreme Processors980X

100

32nm

Celeron ProcessorsU3400P4505/P4500

10590

32nm

Atom ProcessorsS1260/1220S1240Z2460Z2760D2700/2550/2500N2850/2800/2650/2600

951029090100100

45nm

Xeon Processors 5400 Quad-CoreX5492, X5482, X5472, X5470, X5460, X5450E5472, E5462, E5450/40/30/20/10/05L5408L5430, L5420, L5410

85859570

45nm

Xeon Processors 5200 Dual-CoreX5282, X5272, X5270, X5260E5240E5205, E5220L5240L5238, L5215

909070, 907095

45nm

Atom ProcessorsD525/510/425/410K525/510/425/410Z670/650Z560/550/540/530P/530/520PT/520/515/510PT/510PZ510/500N570/550N475/470/455/450N280/270330/230E680/660/640/620E680T/660T/640T/620TE665C/645CE665CT/645CTCE4170/4150/4110CE4200 seriesCE5300 series

100100909090100100901259011090110110unknownunknown

45nm

Core2 ProcessorsSolo ULV SU3500/3300T9900/9800/9600/9550/9500/9400/9300/8300/8100T6670/6500/6400T6600SU9600/9400/9300SP9600/9400SL9600/9400/9380/9300P9700/9600/9500/8800/8700/8600/8400/7570P7550/7450

1001051059010510510510590

45nm

Core2 Quad ProcessorsQ9100/9000

100

45nm

Core2 Extreme ProcessorsX9100/9000QX9300

105100

45nm

Core i3/i5/i7 Processorsi7 940XM/920i7 840QM/820/740/720

100100

45nm

Celeron ProcessorsSU2300900

100105

65nm

Core2 Duo ProcessorsSolo U2200, U2100U7700/7600/7500T7800/7700/7600/7500/7400/7300/7250/7200/7100T5870/5670/5600/5550/5500/5470/5450/5300/5270T5250T5800/5750/5200L7700/7500/7400/7300/7200

10010010010010085100

65nm

Core2 Extreme ProcessorsX7900/7800

100

65nm

Core Duo ProcessorsU2500/2400T2700/2600/2450/2400/2350/2300E/2300/2250/2050L2500/2400/2300

100100100

65nm

Core Solo ProcessorsU1500/1400/1300T1400/1350/1300/1250

100100

65nm

Xeon Processors 5000 Quad-CoreX5000E5000L5000L5318

90-95807095

65nm

Xeon Processors 5000 Dual-Core5080, 5063, 5060, 5050, 50305160, 5150, 5148, 5140, 5130, 5120, 5110L5138

80-9080100

65nm

Celeron ProcessorsT1700/1600560/550/540/530

100100