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@@ -21,8 +21,8 @@ Temperature is measured in degrees Celsius and measurement resolution is
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1 degree C. Valid temperatures are from 0 to TjMax degrees C, because
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the actual value of temperature register is in fact a delta from TjMax.
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-Temperature known as TjMax is the maximum junction temperature of processor.
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-Intel defines this temperature as 85C or 100C. At this temperature, protection
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+Temperature known as TjMax is the maximum junction temperature of processor,
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+which depends on the CPU model. See table below. At this temperature, protection
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mechanism will perform actions to forcibly cool down the processor. Alarm
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may be raised, if the temperature grows enough (more than TjMax) to trigger
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the Out-Of-Spec bit. Following table summarizes the exported sysfs files:
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@@ -38,3 +38,104 @@ temp1_label - Contains string "Core X", where X is processor
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The TjMax temperature is set to 85 degrees C if undocumented model specific
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register (UMSR) 0xee has bit 30 set. If not the TjMax is 100 degrees C as
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(sometimes) documented in processor datasheet.
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+
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+Appendix A. Known TjMax lists (TBD):
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+Some information comes from ark.intel.com
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+
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+Process Processor TjMax(C)
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+
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+32nm Core i3/i5/i7 Processors
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+ i7 660UM/640/620, 640LM/620, 620M, 610E 105
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+ i5 540UM/520/430, 540M/520/450/430 105
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+ i3 330E, 370M/350/330 90 rPGA, 105 BGA
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+ i3 330UM 105
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+
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+32nm Core i7 Extreme Processors
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+ 980X 100
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+
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+32nm Celeron Processors
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+ U3400 105
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+ P4505/P4500 90
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+
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+45nm Xeon Processors 5400 Quad-Core
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+ X5492, X5482, X5472, X5470, X5460, X5450 85
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+ E5472, E5462, E5450/40/30/20/10/05 85
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+ L5408 95
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+ L5430, L5420, L5410 70
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+
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+45nm Xeon Processors 5200 Dual-Core
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+ X5282, X5272, X5270, X5260 90
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+ E5240 90
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+ E5205, E5220 70, 90
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+ L5240 70
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+ L5238, L5215 95
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+
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+45nm Atom Processors
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+ D525/510/425/410 100
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+ Z560/550/540/530P/530/520PT/520/515/510PT/510P 90
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+ Z510/500 90
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+ N475/470/455/450 100
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+ N280/270 90
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+ 330/230 125
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+
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+45nm Core2 Processors
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+ Solo ULV SU3500/3300 100
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+ T9900/9800/9600/9550/9500/9400/9300/8300/8100 105
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+ T6670/6500/6400 105
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+ T6600 90
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+ SU9600/9400/9300 105
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+ SP9600/9400 105
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+ SL9600/9400/9380/9300 105
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+ P9700/9600/9500/8800/8700/8600/8400/7570 105
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+ P7550/7450 90
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+
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+45nm Core2 Quad Processors
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+ Q9100/9000 100
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+
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+45nm Core2 Extreme Processors
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+ X9100/9000 105
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+ QX9300 100
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+
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+45nm Core i3/i5/i7 Processors
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+ i7 940XM/920 100
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+ i7 840QM/820/740/720 100
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+
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+45nm Celeron Processors
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+ SU2300 100
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+ 900 105
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+
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+65nm Core2 Duo Processors
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+ Solo U2200, U2100 100
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+ U7700/7600/7500 100
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+ T7800/7700/7600/7500/7400/7300/7250/7200/7100 100
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+ T5870/5670/5600/5550/5500/5470/5450/5300/5270 100
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+ T5250 100
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+ T5800/5750/5200 85
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+ L7700/7500/7400/7300/7200 100
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+
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+65nm Core2 Extreme Processors
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+ X7900/7800 100
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+
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+65nm Core Duo Processors
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+ U2500/2400 100
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+ T2700/2600/2450/2400/2350/2300E/2300/2250/2050 100
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+ L2500/2400/2300 100
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+
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+65nm Core Solo Processors
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+ U1500/1400/1300 100
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+ T1400/1350/1300/1250 100
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+
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+65nm Xeon Processors 5000 Quad-Core
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+ X5000 90-95
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+ E5000 80
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+ L5000 70
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+ L5318 95
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+
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+65nm Xeon Processors 5000 Dual-Core
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+ 5080, 5063, 5060, 5050, 5030 80-90
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+ 5160, 5150, 5148, 5140, 5130, 5120, 5110 80
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+ L5138 100
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+
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+65nm Celeron Processors
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+ T1700/1600 100
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+ 560/550/540/530 100
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Chen Gong