Penryn Temperature Software Discussion [update]

[Tempered81]

it has x64 support now in 2.0 and comes in a 1 file installer.zip. In Louisss Case, there is a 5C difference in actual temp, and TJmax is 5C lower. So, as you said, delta is the same. I think this guy is trying to author the software to match the actual Temps that he reads with a thermocoupler or IRgun. It's looking like there is either a 5C difference on 65nm chips or no difference at all when compared to CT. When comparing on a 45nm chip, there is usually a 10C difference in RT and CT: RT will report ~9-10C lower, but it will lower TjMax from 105C to 95C. so you still have the same delta, yet are given a more realistic temp, and it works at Idle temp state.

 

[aussiestilgar]

Originally posted by: Germonicus
Now to the BIG question,if the temp reporting is screwed up for my CPU then HOW do I know that my OC isn't running much hotter than I was prepared to accept?

You don't.

Also,is this a fault that needs to be RMA'd (chip is only 3 weeks old)?

I don't think any place will accept the RMA because the chip still functions fine at stock clocks.

 

[Hulk]

Does this run from the exe or does it need to be installed?

I hate installing applications when their just utilites.

 

[Zap]

Originally posted by: Hulk
Does this run from the exe or does it need to be installed?

The EXE just runs.

 

[Idontcare]

This thread needs to be stickied and have the title changed to be more generic so readers will know it applies to them.

Something like: "Correct temperature monitoring software for E8xxx, Q9xxx, and QX9xxx"

 

[Krakn3Dfx]

Shows me at 23c/19c on my cores on my 8400, while CoreTemp shows 29/25. Either of those works for me, but I like RealTemps reading better for obvious reasons .

 

[rajah99]

Hi
Im trying to catch up on all this penryn stuck sensors as fast as possible, apologies if im asking a really obvious question.

I have a dell vostro 1700, in which a previous owner had upgraded the processor to a t8300 ES 2.4ghz rev B1.

I believe this is showing both cores as stuck, as tested with the realtemp software (movement was 0).

I just need to know, if the cores are stuck, does that meant the processor will not throttle down when overheating, or shutdown if getting too hot?

I have been testing the laptop since I received it for stability. Ive thrashed it, cpu stressed it, 3dmark, xstress etc. It has handled all that for hours and hours, and barely got hot.

its a dell, so using i8guifan, i can see the chipset, memory and GPU temps (just not the cpu). Those temps barely get above 60C.

Could i rely on the fan kicking in when the mem/chipset/gpu temp rises, in order to keep the CPU cool enough? Or maybe an idea to set the fan to high if i play games etc?

 

[cmdrdredd]

Originally posted by: rajah99
Hi
Im trying to catch up on all this penryn stuck sensors as fast as possible, apologies if im asking a really obvious question.

I have a dell vostro 1700, in which a previous owner had upgraded the processor to a t8300 ES 2.4ghz rev B1.

I believe this is showing both cores as stuck, as tested with the realtemp software (movement was 0).

I just need to know, if the cores are stuck, does that meant the processor will not throttle down when overheating, or shutdown if getting too hot?

I have been testing the laptop since I received it for stability. Ive thrashed it, cpu stressed it, 3dmark, xstress etc. It has handled all that for hours and hours, and barely got hot.

its a dell, so using i8guifan, i can see the chipset, memory and GPU temps (just not the cpu). Those temps barely get above 60C.

Could i rely on the fan kicking in when the mem/chipset/gpu temp rises, in order to keep the CPU cool enough? Or maybe an idea to set the fan to high if i play games etc?

To the bolded part, yes that is basically what it means.

 

[rajah99]

oh crap. so i guess, put some new arctic silver on, ensure the fans are on full when playing games etc. I guess I wont see any problem until the processor blows.

 

[rajah99]

Ah, ive read further on this. Appears that there is another overheat protection mechanism on the chips, that will switch them off in the event of overheating and cooling failure. So the processor is unlikely to fry. Just posting here for reference, incase others find themselves in my position.

posted by Gwai Lo at neowin.net:
http://www.neowin.net/forum/in...showtopic=669064&st=15

Intel had a presentation on this at IDF.

Tjunction Max is when PROCHOT# is tripped.

Quote - Intel
The Thermal Monitor consists of the following components:
? A highly accurate on-die temperature sensing circuit.
? A bi-directional signal (PROCHOT#) that indicates if the processor has exceeded its maximum temperature or can be asserted externally to activate the Thermal Control Circuit (TCC) (see Section 4.2.1 for more details on user activation of TCC via PROCHOT# signal).
? FORCEPR# signal that will activate the TCC.
? A Thermal Control Circuit that will attempt to reduce processor temperature by rapidly reducing power consumption when the on-die temperature sensor indicates that it has exceeded the maximum operating point.
? Registers to determine the processor thermal status.


So PROCHOT# will trip when the processor has reached an unspecified temperature (around 100°C according to Intel, each chip is calibrated individually at the factory).
Page 34, Section 4.2.1:

Quote - Intel
The temperature at which the PROCHOT# signal goes active is individually calibrated during manufacturing. Once configured, the processor temperature at which the PROCHOT# signal is asserted is not re-configurable.

So while we have some numbers that are generally accepted, we can't be sure.
Anyway, once PROCHOT# has been tripped, it activates TCC or Thermal Control Circuit, which has two methods of reducing power dissipation (page 34 or section 4.2.2). Thermal Monitor 1 and Thermal Monitor 2. Both involve throttling the processor frequency. If this doesn't work..
Page 38, Section 4.2.7:

Quote - Intel
In the event of a catastrophic cooling failure, the processor will automatically shut down when the silicon temperature has exceeded the TCC activation temperature by approximately 20 to 25 °C. At this point the system bus signal THERMTRIP# goes active and power must be removed from the processor. THERMTRIP# activation is independent of processor activity and does not generate any bus cycles. Refer to the processor datasheet for more information about THERMTRIP#. The temperature where the THERMTRIP# signal goes active is individually calibrated during manufacturing and once configure can not be changed.

So 20-25°C over Tjunction Max and the chips will shut themselves off. This part was just to address worries people have about "frying" their processors.

edit: No, Intel said 45nm chips have Tjunction Maxes of 100°C or so.