5 * All Intel Core family
7 <<<<<<< HEAD:Documentation/hwmon/coretemp
8 CPUID: family 0x6, models 0xe, 0xf, 0x16
10 CPUID: family 0x6, models 0xe, 0xf, 0x16, 0x17
11 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:Documentation/hwmon/coretemp
12 Datasheet: Intel 64 and IA-32 Architectures Software Developer's Manual
13 Volume 3A: System Programming Guide
14 <<<<<<< HEAD:Documentation/hwmon/coretemp
16 http://softwarecommunity.intel.com/Wiki/Mobility/720.htm
17 >>>>>>> 264e3e889d86e552b4191d69bb60f4f3b383135a:Documentation/hwmon/coretemp
24 This driver permits reading temperature sensor embedded inside Intel Core CPU.
25 Temperature is measured in degrees Celsius and measurement resolution is
26 1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
27 the actual value of temperature register is in fact a delta from TjMax.
29 Temperature known as TjMax is the maximum junction temperature of processor.
30 Intel defines this temperature as 85C or 100C. At this temperature, protection
31 mechanism will perform actions to forcibly cool down the processor. Alarm
32 may be raised, if the temperature grows enough (more than TjMax) to trigger
33 the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
35 temp1_input - Core temperature (in millidegrees Celsius).
36 <<<<<<< HEAD:Documentation/hwmon/coretemp
37 temp1_crit - Maximum junction temperature (in millidegrees Celsius).
39 temp1_max - All cooling devices should be turned on (on Core2).
40 temp1_crit - Maximum junction temperature (in millidegrees Celsius).
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42 temp1_crit_alarm - Set when Out-of-spec bit is set, never clears.
43 Correct CPU operation is no longer guaranteed.
44 temp1_label - Contains string "Core X", where X is processor
47 The TjMax temperature is set to 85 degrees C if undocumented model specific
48 register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
49 (sometimes) documented in processor datasheet.