tistou77 Posted October 10, 2013 Share Posted October 10, 2013 Hello The Tjmax IB-E is 91°C, I believeWith the latest beta, the Tjmax is to 91°C ? With another monitor, set at 91°C, the temperatures of cores are lower (compared to Aida64) Thanks Quote Link to comment Share on other sites More sharing options...
Fiery Posted October 10, 2013 Share Posted October 10, 2013 On Nehalem and later architecture Intel processors the processor itself has the TJMax value hard-coded in a MSR register. AIDA64 will detect the TJMax value and use it for core temperature calculations. The detected TJMax value can be checked on the Motherboard / CPUID page. Quote Link to comment Share on other sites More sharing options...
tistou77 Posted October 10, 2013 Author Share Posted October 10, 2013 On the Motherboard / CPUID page, it's indicate 95°C, not 91°C Quote Link to comment Share on other sites More sharing options...
Fiery Posted October 10, 2013 Share Posted October 10, 2013 If you use Automatic TJMax setting (in AIDA64 / main menu / File / Preferences / Hardware Monitoring), then it means your CPU's TJMax is 95 Celsius. There are no fixed values anymore, each processor has its own setting. Quote Link to comment Share on other sites More sharing options...
tistou77 Posted October 10, 2013 Author Share Posted October 10, 2013 According to the Intel datasheet, the Tjmax is 91°C for Ivy Bridge-Eother softs for monitoring indicate 91°CWho is good and who is not? Thanks Quote Link to comment Share on other sites More sharing options...
Fiery Posted October 11, 2013 Share Posted October 11, 2013 Which document do you refer to? But please note that Intel documents tend to have typos and small mistakes BTW, there're actually 2 methods to detect TJMax on an Ivy Bridge-E processor. First one is the MSR method AIDA64 uses, and the other you can do it yourself if you want. Make a HTML report of any pages of AIDA64, scroll to the bottom of the report. Then start scrolling back until you reach the PCI device that's labelled: Bxx D0A F00: Intel Ivy Bridge-E/EN/EP/EP 4S/EX - Power Control Unit 0 ("Bxx" could be e.g. "BFF") Under that label, find the line that starts with "Offset 0E0". That line should look like: Offset 0E0: FC 33 00 00 00 0A 5F 00 40 9F 5A 00 40 9F 06 00 In that line the 7th register (starting from "FC"), register index 0xE6 will indicate your CPU's TJMax temperature in hexadecimal Celsius value. If it reads 5F, then your CPU has a TJMax of 95 Celsius. If it reads 5B, your CPU has a TJMax of 91 Celsius. You can check the description of that register in the Ivy Bridge-E datasheet Volume 2 (Intel document number 329367-001) in section 6.1.8 TEMPERATURE_TARGET, bit 23:16. http://www.intel.com/content/dam/www/public/us/en/documents/datasheets/4th-gen-core-i7-lga2011-datasheet-vol-2.pdf Page 83 Quote Link to comment Share on other sites More sharing options...
tistou77 Posted October 11, 2013 Author Share Posted October 11, 2013 For me BFF D0A F00: Intel Ivy Bridge-E/EN/EP/EP 4S/EX - Power Control Unit 0 Offset 0E0: 18 36 00 00 00 0A 5F 00 40 9F 5A 00 40 9F 06 00 E0E is different (not Offset 0E0: FC 33 00 00 00 0A 5F 00 40 9F 5A 00 40 9F 06 00) Quote Link to comment Share on other sites More sharing options...
Fiery Posted October 11, 2013 Share Posted October 11, 2013 For me BFF D0A F00: Intel Ivy Bridge-E/EN/EP/EP 4S/EX - Power Control Unit 0 Offset 0E0: 18 36 00 00 00 0A 5F 00 40 9F 5A 00 40 9F 06 00 E0E is different (not Offset 0E0: FC 33 00 00 00 0A 5F 00 40 9F 5A 00 40 9F 06 00) I've highlighted the only register that counts about TJMax (reg0xE6). It shows 5F which is 95 Celsius. Quote Link to comment Share on other sites More sharing options...
tistou77 Posted October 11, 2013 Author Share Posted October 11, 2013 Ok, everything is normal, then? Thanks so much Quote Link to comment Share on other sites More sharing options...
Fiery Posted October 11, 2013 Share Posted October 11, 2013 Yes, it's normal. And it's 95 Celsius Quote Link to comment Share on other sites More sharing options...
tistou77 Posted October 11, 2013 Author Share Posted October 11, 2013 Ok, thanks so much for your help Quote Link to comment Share on other sites More sharing options...
Madmaxneo Posted April 19, 2015 Share Posted April 19, 2015 I know it's been a while since this topic has been open but I have a question in relation to this thread. I did the Aida64 test and I was curious about my TJmax. The result I got following the examples above was a 5A. So what does that mean my TJmax is? Quote Link to comment Share on other sites More sharing options...
Madmaxneo Posted April 19, 2015 Share Posted April 19, 2015 I know it's been a while since this topic has been open but I have a question in relation to this thread. I did the Aida64 test and I was curious about my TJmax. The result I got following the examples above was a 5A. So what does that mean my TJmax is? The whole lines reads: Offset 0E0: 54 31 00 00 00 0A 5A 00 40 9F 5A 00 40 9F 06 00 Quote Link to comment Share on other sites More sharing options...
Fiery Posted April 19, 2015 Share Posted April 19, 2015 0x5A = 90 Celsius. Regards, Fiery Quote Link to comment Share on other sites More sharing options...
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