TjMax for all

[The Coolest]

So I got an email yesterday. From Benson Inkley, the same person who held the presentation about the DTS at IDF in August.

At IDF Taiwan details about TjMax for all Intel's Core 2 processor line will be revealed.
This includes Core 2 Duo, Quad, Xeons. Both 45nm and 65nm flavors.
QX9775 should be mentioned as well.

Also more information should be revealed about the IA32_TEMPERATURE_TARGET MSR for the Nehalem.

Source

[SNiiPE_DoGG]

So I got an email yesterday. From Benson Inkley, the same person who held the presentation about the DTS at IDF in August.

At IDF Taiwan details about TjMax for all Intel's Core 2 processor line will be revealed.
This includes Core 2 Duo, Quad, Xeons. Both 45nm and 65nm flavors.
QX9775 should be mentioned as well.

Also more information should be revealed about the IA32_TEMPERATURE_TARGET MSR for the Nehalem.

now we can see how good our watercooling really is

[G.Foyle]

Very nice!
Good to see Intel support 3rd party software.

And happy birthday to you!

[RPGWiZaRD]

Great news, I'm glad Intel won't try to hide it anymore.

[bigslappy]

This is Great News !

[BuBBle.D]

I bet intel wont reveal the true TJmax and say a number that is like 10C lower than the real TJmax.

[billdavis]

I bet intel wont reveal the true TJmax and say a number that is like 10C lower than the real TJmax.

So... you know some thing we dont, or you just being pessimistic

[naokaji]

I bet intel wont reveal the true TJmax and say a number that is like 10C lower than the real TJmax.

I assume they wont lie, because the whole purpose of releasing the info is to give more accurate details, not less, but then you never know, just look at how they lie with tdp's.

[fragmasterMax]

I bet intel wont reveal the true TJmax and say a number that is like 10C lower than the real TJmax.

and then have 10 million refunds to process from 3rd party companies like dell for example?
no, that won't happen.

[RaZz!]

wow, i'm confused about why it's so hard for intel to just tell their customers the right tjmax. incomprehensible.

[randomizer]

wow, i'm confused about why it's so hard for intel to just tell their customers the right tjmax. incomprehensible.

Perhaps because it's a "trade secret."

[Hornet331]

wow, i'm confused about why it's so hard for intel to just tell their customers the right tjmax. incomprehensible.

because they never ment to be public.

[randomizer]

because they never ment to be public.

Actually they did. They made the IDF presentations because of endless customer enquiries about temps. It doesn't mean they had to tell us everything. It doesn't mean that what they told us is true either. We just have to accept it, ignore it or "fight" for the real stuff.

[PrometheusCon]

Cool! I'm interested in seeing how my processor is doing.

*btw haha at your avatar BuBBle.D

[Lestat]

and tjmax effects us how ?
nvm im an idiot, some reason i was drawing a blank on tjmax was ... derrr O_o

[SNiiPE_DoGG]

and tjmax effects us how ?

right now all temp monitoring programs use TJmax settings to refference the temp of the proc, the problem is that we dont know what the real TJ max is for the current processors and thus we cannot say for 100% certain that a temp from coretemp or realtemp is correct, we are just making educated guesses

[Spawne32]

and tjmax effects us how ?

i think it has to do with clothes and such

[[XC] riptide]

i think it has to do with clothes and such

We have its sister TKMax here.

[Etihtsarom]

i think it has to do with clothes and such

[JumpingJack]

and tjmax effects us how ?
nvm im an idiot, some reason i was drawing a blank on tjmax was ... derrr O_o

http://documents.irevues.inist.fr/bi...79/1/TMI23.pdf

Tjmax is used to calculate the actual temperature from the DTS, it is an offset from a 7-bit word from Tjmax. This is accurate for mobile Core Duo and Core 2 Duo chips, since they are designed without an IHS and the Tjmax is specified for those die...

People assumed, since they are the same architecture, same die, that the mobile Tjmax is the same for desktop chips... this may or may not be true. So it will be nice to have the official Tjmax in hand to allow temp sensing programs to report accurate core temps without second guessing the calibration.

Here is a nice explanation of how thermal diodes work: http://www.maxim-ic.com/appnotes.cfm?an_pk=689.

[zanzabar]

thermal probes work on a non linear voltage scale of how far its lower than the thermal junction, so if we know the exact specs its much easier to make proper temp monitors

[The Coolest]

Very nice!
Good to see Intel support 3rd party software.

And happy birthday to you!

Yes, indeed.
From what I gathered from the last presentation about the Nehalem is that the TjMax value is going to be programmed into the CPU's IA32_TEMPERATURE_TARGET MSR for accuracy's and ease of use sake.

I bet intel wont reveal the true TJmax and say a number that is like 10C lower than the real TJmax.

Why would they do that? There's no benefit for them in lying.

Incoming dumb question: What was all the talk about the recently newly adjusted TjMax then? My E8400 now used 100 instead of 105 in CoreTemp, as I'm sure you all know.

We only got values for the Core 2 45nm range, this time the information will also cover Xeons and 65nm parts.

[inCore]

Incoming dumb question: What was all the talk about the recently newly adjusted TjMax then? My E8400 now used 100 instead of 105 in CoreTemp, as I'm sure you all know.

[inCore]

Ah right, suppose it's no wonder that I didn't notice. Thanks for clearing that up.

[BuBBle.D]

So... you know some thing we dont, or you just being pessimistic

No i dont know sh*t. Im just pulling pessimistic conclusions outta my pocket.
Like it or not, thats the way i am (sometimes).

Why would they do that? There's no benefit for them in lying.

Sure there is. People would panic and lower their 24/7 OC according to the temperature. Lower OC = less RMA even though there are only a few dead c2d cpus.