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i7 920 TJ-Max?

post #1 of 17
Thread Starter 
Bios reads 35c idle. All software reads 39-40c idle. Is this due to wrong TJ-Max setting? Currently set to 100c.
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post #2 of 17
Coretemp & realtemp calculate the temps differently, the bios is reporting the temperature of the IHS sensor. On the classified board the debug displays the IHS temp, usually about 10° cooler than the temp software.
    
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post #3 of 17
Thread Starter 
Quote:
Originally Posted by FtW 420 View Post
Coretemp & realtemp calculate the temps differently, the bios is reporting the temperature of the IHS sensor. On the classified board the debug displays the IHS temp, usually about 10° cooler than the temp software.
So what would you advise for my TJ-Max?
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post #4 of 17
100c is the correct TJ Max for your chip.
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Mecha |3lack
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post #5 of 17
Thread Starter 
Quote:
Originally Posted by Wheezo View Post
100c is the correct TJ Max for your chip.
Dam lol!
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post #6 of 17
that's odd, I would think that you could have some sort of voltage increase when you get to the OS. Maybe that is higher for some reason. Is the Max temp usually set that high, I suppose there is a way to lower it. the thermal spec on the 920 says 67.9c. Tcase is the max that the geometric center of the die can reach before the chip shuts itself down. Tcase is different than tj max though

http://download.intel.com/design/pro...hts/320834.pdf see page 73 for thermal info.
post #7 of 17
Quote:
Originally Posted by SOCOM_HERO View Post
that's odd, I would think that you could have some sort of voltage increase when you get to the OS. Maybe that is higher for some reason. Is the Max temp usually set that high, I suppose there is a way to lower it. the thermal spec on the 920 says 67.9c. Tcase is the max that the geometric center of the die can reach before the chip shuts itself down. Tcase is different than tj max though

http://download.intel.com/design/pro...hts/320834.pdf see page 73 for thermal info.
67.9c tCase + 25-35C = TJMax usually.
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post #8 of 17
Thread Starter 
bios reads more voltage used as well when in the bios idle.
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post #9 of 17
Quote:
Originally Posted by BradleyW View Post
bios reads more voltage used as well when in the bios idle.
Well, there's your problem!
post #10 of 17
Thread Starter 
Quote:
Originally Posted by SOCOM_HERO View Post
Well, there's your problem!
Surely the temps would be higher in the bios due to high voltage?
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X79-GCN
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