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post #11 of 14
tj max on a 65nm quad should be 100 but what is it on a 45nm quad?
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post #12 of 14
Quote:
Originally Posted by Byaku-X View Post
I know this is an old thread but... Does this mean as long as you don't reach TJ max, you are at a "safe" temperature?
  • For Intel processors Tjmax is not the true maximum core junction temperature but the maximum core temperature at which Intel considers the CPU as operating in specification.
  • Whether throttling occurs at Tjmax will be dependent on the whether the automatic thermal control circuit (TCC) is enabled. Note that Intel consider the CPU operating out of spec if automatic TCC is disabled.
  • CPU shutdown may occur some ~20C above Tjmax.
  • The BIOS / ACPI may throttle and/or shut down the system before the CPU does.

CPUs are sold with a warranty based on the CPU operating in specification. AFAIK if you have a 3 year warranty and operate within specification the manufacturer is saying they expect it to last at least that long or they will replace it as a defective CPU. Technically this could mean with a Tjmax of 100C you should be able to operate at 99C 24/7 as long as everything else is in spec. It's normally a good idea though to keep electronics cool and although the case temperature should be less than this, perhaps ~70C when the core is at 100C, it will be heating up the other components nearby too.

AFAIK heat acts as an accelerator in reducing lifetime. So if you want to get the most out of your CPU keep it cool, especially if you decide to overclock.
post #13 of 14
For my E2200 It's 85c


Not sure for my Pentium D945 cause Core Temp is not compatible with that CPU
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post #14 of 14
Quote:
Originally Posted by decapitator;8845104 
tj max on a 65nm quad should be 100 but what is it on a 45nm quad?

I know bump of an old thread, but depending onthe reviison and model of the 65nm quad, the TjMax will vary. For the G0 Q6600 (like me) TjMax is 90C. As soon as I even graze 90C, my computer does an instashutdown.

And in case any poor soul tries to find the TjMax of their Q6600 or any other Core 2 and stumbles upon this thread:

http://www.tomshardware.co.uk/intel-dts-specs,news-29460.html

That is the TjMax of ALL core 2 architecture CPUs. When running thermal monitoring programs, TjMax should be set appropriately.
Edited by Lord Xeb - 8/7/11 at 12:41am
 
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