Hello!

I don't know...

I have an Intel D975XBX2 motherboard and an Intel Core2 Extreme QX6700...

[all temps under full load!]

In the past with the stock heatsink and fan (and CPU-FanControl ON) I had room: 22 °C, and the 4 cores (CoreTemp): 71- 77 °C
CPU-FanControl OFF: ~ 10 °C less
(Intel Desktop Utilities show me "Processor Thermal Margin" 22 °C, and fan on max ~ 30 °C)


Now I installed a Thermalright SI-128 (with Arctic Silver 5) + Papst 4412 F/2GP and now:
room: 20,5 °C and the 4 cores: 69- 73 °C
(CPU-FanControl ON, Fan is running ~ 60 % on 1.500 RPM)
So I have now 2 °C less temp:?
(Intel Desktop Utilities show me "Processor Thermal Margin" 25°C)

CPU-FanControl OFF: 68- 71 °C (Fan at 2.470 RPM)
(Intel Desktop Utilities show me "Processor Thermal Margin" ~ 27 °C (fan on max.)
(~ 4 °C hotter than with stock?)

After installing from the heatsink the motherboard is looking like this:
The Motherboard, Intel D975XBX2 have now a "roundness" around the CPU-Socket (if you look from the side to the board), because the holder from the heatsink pulls a lot on the motherboard. It's looking like the CPU is now more far away from the heatsink... (I had explained it well? ;-)

http://pics.computerbase.de/1/5/0/9/8/3.jpg
http://pics.computerbase.de/1/5/0/9/8/2.jpg

It's looking like this.
If you look from the under side (I didn't found a pic), it's looking there is a small mountain direct under the socket.
So I have the fear, that the heatsink are not correct on the CPU (without the correct pressure)(without the direct correct contact)


Here is someone who use Intel Desktop Utilities (What does it mean: "Processor Thermal Margin") ? Which temps you have? (room?)
Which temps you have with CoreTemp? (room?)

I found:
http://processorfinder.intel.com/details.aspx?sSpec=SL9UL#
The max. temp for the QX6700 65 °C!!!!!
On the heatspreader or on the Cores (like in CoreTemp)?
In CoreTemp the max. temp. 100 °C... ("Tjunction" or what does this temp mean?)


I found some (german) tests:

The QX6700 temp is ~ 20 °C higher than at a X6800 or Core2 CPUs
http://www.hardware-mag.de/hardware.php?id=440&page=12
(the pic: "CPU-Temperatur (Last)")

Pic. "Temperaturen bei minimaler Drehzahl":
(Cores at 80°C)
http://hardware.thgweb.de/2006/11/01/intel_core_2_extreme_qx6700/page14.html
"Die Kerntemperatur erreicht hierbei 80 °C und ist weit von der Throttling-Temperatur entfernt."
"Die Coretemp reached 80 °C but is far away from the throttling- temp."
So 80°C for a QX6700 is "normal"?!

What are the temps for "heath"?
At which temp the Cores are unstably or damaged?


I'm little bit confused...


Friendly greetings!

---

Hello!
I don't know...
I have an Intel D975XBX2 motherboard and an Intel Core2 Extreme QX6700...
[all temps under full load!]
So 80°C for a QX6700 is "normal"?!
What are the temps for "heath"?
At which temp the Cores are unstably or damaged?
I'm little bit confused...
Friendly greetings!

I went here and found some tests http://www.pcper.com/article.php?aid=317&type=expert

And here it talks about temperatures of this cpu http://www.legitreviews.com/article/412/18/

---

Hello!

I don't know...

I have an Intel D975XBX2 motherboard and an Intel Core2 Extreme QX6700...

[all temps under full load!]
...
I found:
http://processorfinder.intel.com/details.aspx?sSpec=SL9UL#
The max. temp for the QX6700 65 °C!!!!!
On the heatspreader or on the Cores (like in CoreTemp)?
In CoreTemp the max. temp. 100 °C... ("Tjunction" or what does this temp mean?)
...
I'm little bit confused...


Friendly greetings!

Maybe you need to read Intels Datasheet for the QX6700 (esp. Chapter 5). Just follow your link above to the documentation.

---

_\|/_
U r s

Hello!
I don't know...
I have an Intel D975XBX2 motherboard and an Intel Core2 Extreme QX6700...
[all temps under full load!]
So 80°C for a QX6700 is "normal"?!
What are the temps for "heath"?
At which temp the Cores are unstably or damaged?
I'm little bit confused...
Friendly greetings!

I went here and found some tests http://www.pcper.com/article.php?aid=317&type=expert

And here it talks about temperatures of this cpu http://www.legitreviews.com/article/412/18/

THANX !




pics from: http://www.legitreviews.com/article/412/18/

Then the difference between idle and full load (with Super Pi, what ever this is) : ~ 30 °C

[room 21 °C]
I have idle: 40 + 35 + 40 + 35 = 37,5 °C
full load (with SETI@home): 73 + 70 + 71 + 70 = 71 °C
difference= 33,5 °C

so if S@H take the hardware harder, then everything is O.K. ...
And maybe the new compound Arctic Silver 5 have a better "heat conductivity" after 200 hours (they say this in the manual)...

It's normal, that the Cores # 0 and # 2 are hotter than Cores # 1 and # 3?


Friendly greetings!

---

Hello!

I don't know...

I have an Intel D975XBX2 motherboard and an Intel Core2 Extreme QX6700...

[all temps under full load!]
...
I found:
http://processorfinder.intel.com/details.aspx?sSpec=SL9UL#
The max. temp for the QX6700 65 °C!!!!!
On the heatspreader or on the Cores (like in CoreTemp)?
In CoreTemp the max. temp. 100 °C... ("Tjunction" or what does this temp mean?)
...
I'm little bit confused...


Friendly greetings!

Maybe you need to read Intels Datasheet for the QX6700 (esp. Chapter 5). Just follow your link above to the documentation.

THANX !

If I understand it correct...

Max. temp. for the middle point of the CPU -> 65 °C.


But how much temp. can have the Cores alone (CoreTemp)

Because with all progs (EVEREST, AIDA32, SpeedFan) I cannot look to the "heat spreader- temp." on my Intel D975XBX2 board.
I have only Intel Desktop Utilities, and this show me only the temp to the max.? (I think, because the man from Intel I called, didn't know it also)
So hotter the CPU so smaller the indicate.
For example room 21 °C -> 25 °C full load
-> 54 °C idle

So how I can read the temp from the QX6700 on an Intel D975XBX2 board?


Friendly Greetings!

---

A small difference between the core temps can be considered normal. My heavily OCd QX6700 shows right now 56c in Asus Probe, 1.42vcore (bios setting is 1.525) 3408mhz 426 x 8. Coretemp shows on cores 0,1,2,3 81c,80c,78c,80c, so my temps are pretty consistant. If you are seeing a large difference between the cores, then chances are your cpu cooler is not mounted flat and is contacting one side of the cpu more than the other. I had read in one of the OCing forums that one user was able to push his cooler from one side to the other slightly for 10-15 seconds and see a difference in Coretemp. He then tightened up the mounting hardware on the side he was pushing towards and it helped even his temps out.
Of course, when looking at Coretemp, check task manager to make sure that all cores are fully loaded.

---

"Time is simply the mechanism that keeps everything from happening all at once."

A small difference between the core temps can be considered normal. My heavily OCd QX6700 shows right now 56c in Asus Probe, 1.42vcore (bios setting is 1.525) 3408mhz 426 x 8. Coretemp shows on cores 0,1,2,3 81c,80c,78c,80c, so my temps are pretty consistant. If you are seeing a large difference between the cores, then chances are your cpu cooler is not mounted flat and is contacting one side of the cpu more than the other. I had read in one of the OCing forums that one user was able to push his cooler from one side to the other slightly for 10-15 seconds and see a difference in Coretemp. He then tightened up the mounting hardware on the side he was pushing towards and it helped even his temps out.
Of course, when looking at Coretemp, check task manager to make sure that all cores are fully loaded.

I have only in idle core temp differences from around 5 °C...
In full load around 3 °C like you...
So I think it's O.K., I hope! :-)

You don't have problems with 81 °C... what you think, what's the highest temp he can run good (not to damage him)?


To this time I didn't found a prog to look to the "heat-spreader-temp"... :-(

EVEREST, AIDA32 and SpeedFan doesn't work with my Intel D975XBX2 board... :-(

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Intel's own datasheet on the QX6700 specifies a maximum case temperature of 64.5c, so running at 56c as my bios based reading shows, I'm getting pretty close. I would think around 90c would be the max in Coretemp, but I haven't researched the die temps. Right now the ambient room temp is about 72f (22c) and I am on air cooling, so as the weather gets warmer this spring and the room temp goes to 80 or so, the cpu temp is gonna rise as well and I may have to crank down the OC or crank up the AC.

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"Time is simply the mechanism that keeps everything from happening all at once."

I have 3 XQ6800's slightly overclocked, using an ASUS mobo - core temps are sitting between 72C and 85C - they are running stable with no problems, and have been running stable now for several months.

I also run several XQ6700 quads, the core temps on these are sitting at 70c and running stable.

I have not had a machine burn up on me for over 8 months since I lowered the temp from 85c on some Pent D's.

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I have 3 XQ6800's slightly overclocked, using an ASUS mobo - core temps are sitting between 72C and 85C - they are running stable with no problems, and have been running stable now for several months.

I also run several XQ6700 quads, the core temps on these are sitting at 70c and running stable.

I have not had a machine burn up on me for over 8 months since I lowered the temp from 85c on some Pent D's.

Where are these temp readings from? Asus Probe, Coretemp, or other?

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"Time is simply the mechanism that keeps everything from happening all at once."

I have 3 XQ6800's slightly overclocked, using an ASUS mobo - core temps are sitting between 72C and 85C - they are running stable with no problems, and have been running stable now for several months.

I also run several XQ6700 quads, the core temps on these are sitting at 70c and running stable.

I have not had a machine burn up on me for over 8 months since I lowered the temp from 85c on some Pent D's.

Where are these temp readings from? Asus Probe, Coretemp, or other?

Yes to all - I am not crazy. Mobo software, Coretemp, speedfan, and others all report the same.

I am not worried, if they burn up, it just gives me a great excuse to upgrade to the newest stuff. But so far, they are hanging in there with no problems.


This one here is sitting at 72c
http://setiathome.berkeley.edu/show_host_detail.php?hostid=2973547

This one is at 73c
http://setiathome.berkeley.edu/show_host_detail.php?hostid=2973392

And this one hangs in there at just under 80c
http://setiathome.berkeley.edu/show_host_detail.php?hostid=2868562
and the other XQ6800 are sitting around 72c

---

I have been thinking about this QX6700 CPU and maybe getting one online. Is this a 2 core with HT or is it truly a 4 core CPU? How much on board L2 cache? Are you running with all 4 cores crunching data?

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Boinc....Boinc....Boinc....Boinc....

These temps are really high. It's like the problem the Pentium EE had.

I can see how they can be that high with a stock cooler but the SI-128 heatsink CAPTAIN FUTURE is using should be keeping the temps somewhere in the mid-50s celsius range, especially with a 120mm fan. It could be an issue with the heatsink/cpu contact like msattler mentioned. There's always a possibility the heatsink surface itself is messed up.

There's a quick alterative if lower temperatures is what you want. Use a basic easy-to-install liquid cooling system like the Silent Water II. I found a review for it at techpowerup.com. Here's the load temps at 132W/1.6V.

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These temps are really high. It's like the problem the Pentium EE had.

I can see how they can be that high with a stock cooler but the SI-128 heatsink CAPTAIN FUTURE is using should be keeping the temps somewhere in the mid-50s celsius range, especially with a 120mm fan. It could be an issue with the heatsink/cpu contact like msattler mentioned. There's always a possibility the heatsink surface itself is messed up.

I do not think the temps are 'really high'.
What we have to keep in mind is that there are 2 different classes of temperature readings available now, and I think some people are confusing them with each other.
There are bios based temperature readings....These are what most people are used to seeing. Roughly equates to case temperature. On my quad, Asus Probe or Speedfan show a cpu temp of about 56c. This is on the hot side, but is in the mid-50's range that you mention. Quite in line for a heavily OCd quad with a Big Typhoon air cooler.
Then there are DTS based readings.......Digital Thermal Sensor. DTS gives readings from deeper in the chip where the heat is actually being produced. It gives a more accurate reading of what temperature the cores themselves are running at. The information is also used for thermal throttling and fan speed control on some mobos. On the same rig as above, if I use Coretemp or TAT to get a temp reading, I now see temps of around 80c. Some folks would look at that and say ouch! But that is because I am seeing the DTS temps, not the case temps.
Sooooo......56c or 80c? Same rig, same cpu. When evaluating your cpu cooling, you have to keep in mind what readings your temperature monitoring program is really showing you. They are not all the same these days.

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"Time is simply the mechanism that keeps everything from happening all at once."

I do not think the temps are 'really high'.
What we have to keep in mind is that there are 2 different classes of temperature readings available now, and I think some people are confusing them with each other.
There are bios based temperature readings....These are what most people are used to seeing. Roughly equates to case temperature. On my quad, Asus Probe or Speedfan show a cpu temp of about 56c. This is on the hot side, but is in the mid-50's range that you mention. Quite in line for a heavily OCd quad with a Big Typhoon air cooler.
Then there are DTS based readings.......Digital Thermal Sensor. DTS gives readings from deeper in the chip where the heat is actually being produced. It gives a more accurate reading of what temperature the cores themselves are running at. The information is also used for thermal throttling and fan speed control on some mobos. On the same rig as above, if I use Coretemp or TAT to get a temp reading, I now see temps of around 80c. Some folks would look at that and say ouch! But that is because I am seeing the DTS temps, not the case temps.
Sooooo......56c or 80c? Same rig, same cpu. When evaluating your cpu cooling, you have to keep in mind what readings your temperature monitoring program is really showing you. They are not all the same these days.

Okay, that's a logical explanation. That means that the maximum 65°C temp isn't being reached according to the intended method of measurement, i.e., the center of the IHS.

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I do not think the temps are 'really high'.
What we have to keep in mind is that there are 2 different classes of temperature readings available now, and I think some people are confusing them with each other.
There are bios based temperature readings....These are what most people are used to seeing. Roughly equates to case temperature. On my quad, Asus Probe or Speedfan show a cpu temp of about 56c. This is on the hot side, but is in the mid-50's range that you mention. Quite in line for a heavily OCd quad with a Big Typhoon air cooler.
Then there are DTS based readings.......Digital Thermal Sensor. DTS gives readings from deeper in the chip where the heat is actually being produced. It gives a more accurate reading of what temperature the cores themselves are running at. The information is also used for thermal throttling and fan speed control on some mobos. On the same rig as above, if I use Coretemp or TAT to get a temp reading, I now see temps of around 80c. Some folks would look at that and say ouch! But that is because I am seeing the DTS temps, not the case temps.
Sooooo......56c or 80c? Same rig, same cpu. When evaluating your cpu cooling, you have to keep in mind what readings your temperature monitoring program is really showing you. They are not all the same these days.

Okay, that's a logical explanation. That means that the maximum 65°C temp isn't being reached according to the intended method of measurement, i.e., the center of the IHS.

Correct...... under some OC settings I have tried, I have seen the bios based (IHS) temps go up into the low 60's and the DTS based temps up into the mid 90's. Now THAT's getting pretty hot.

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"Time is simply the mechanism that keeps everything from happening all at once."

@ all QX6700 users! :-)


Which heatsink you use and with which fan?
You can maybe post a link, that I can look to him? ;-)
And how much RPM the fan is running? m3/hour? noise?

I use Thermalright SI-128 and Papst 4412 F/2GP
(1,000 to 2,500 RPM, max. 170 m3/h and max. ~ 40 dBA)
(fan with 4pin connector for 775 socket FanControl function)

thermalright.com

computerbase.de #1
computerbase.de #2
(your board is bent in such this way also?)

And I'm not very happy about the temps ...


THANX!

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I am using the TTBT (Thermaltake Big Typhoon), with a fan upgrade to a Silverstone FM122 on full speed (1-2c better than the stock fan, not much). The FM122 is 120 x 32mm and is rated at 107.13cfm at 2400rpm, 44.1dba. It comes with a speed control if you want to try to reduce the speed/cfm/noise.
Right now, my temps are 54c (case temp, bios temp, Asus Probe), and 79c (core temp, DTS temp, Coretemp).

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"Time is simply the mechanism that keeps everything from happening all at once."

Earlier it was mentioned that temps increase when moving the heatsink. Last year I built an Intel system for a friend in a tower case with the stock cooler, and found temps increased by about 4C when running full load when case was moved from horizontal, build posn, to vertical, normal use posn. Found that the weight of HS/Fan on spring mountings caused upper edge of HS to move away from cpu.

Informed Intel but only got automated reply. But we change it anyway for one screwed down to backplate.

Andy

Earlier it was mentioned that temps increase when moving the heatsink. Last year I built an Intel system for a friend in a tower case with the stock cooler, and found temps increased by about 4C when running full load when case was moved from horizontal, build posn, to vertical, normal use posn. Found that the weight of HS/Fan on spring mountings caused upper edge of HS to move away from cpu.

Informed Intel but only got automated reply. But we change it anyway for one screwed down to backplate.

Andy

I have always used the TTBT with a 4-hole thru the mobo mounting method. I do not know if all mobos have the 4 holes. I have been running all Asus.

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"Time is simply the mechanism that keeps everything from happening all at once."