T7500 core temp 64!!

Alright heres the deal. I have a new T61 with T7500 core2duo cpu. Checking with both Everest and Speedfan I'm reading a core temp of 64 degrees celcius when I'm only using 0-10% of each core. Not only that, I can physically feel the heat coming out of my exhaust and it feels unnaturally hot at times. I'm just wondering if this is within intel/lenovoIBM specs. And also If I may have some cooling issues, too much thermal compound or whatever. The ambient temp in my dorm is prob 70-85 degrees Fahrenheit most of the time.

 

That's normal, there's probably 900,000 topics about this in the search.

 

Hmm, that actually seems a bit high for that little usage. My T7500 idles around the upper 40's sometimes getting into the 50's. After a game, it gets into the upper 60's. I use a Targus ChillMat on mine and it seems to help with the temperatures. If you haven't already, invest in some canned air and throughly clean your laptop. Maybe reapply the thermal compound using Arctic Silver.

 

It's new. It should not have build up. I wonder if your heatsink is set properly?

 

Lithus, you are fine, my T7500 is around the 40-50C range on idle and after gaming it gets into the 60-70C range depending on the room temperature, don't worry.

 

The CPU temperature will also depend on the temperature settings for the fan operation.

Some manufacturers opt for higher temperatures and less fan operation and some prefer to keep the fan running and have everything cool. These settings are pre-set in the BIOS.

For example, on my Zepto 6024W (T7300) with one BIOS version the CPU is around 48C on light load and with another BIOS version (with higher fan trigger temperature) then the CPU is around 63C.

What really matters is the increase in the CPU temperature under load.

John

 

Lucky people, with no additional cooling and under 2xPrime my temps are 85 degrees celcius load. I think I might need some AS5 although I tried undervolting and my idle temps were higher

 

Or maybe the W7 doesn't pack a particulary generous cooling system. My Zepto 6024W has a cooling system designed to take the heat from a 8600M GT so it has an easy time with only an X3100 to cool. However good coolers then to add to the thickness (but aren't likely to wear out quickly). Arctic Silver may help, but only if the fan is able to keep the heat sink cool.

Here's a couple of plots captured during the wPrime stress test. The first is at the default CPU voltage and the second is with undervolting which takes about 10C off the CPU full load temperature.

John

 

So is it normal or not? It seems that even when my fan is spinning full speed it can't lower the temp. I thought I had a flawless T61 (besides light leakage) but I got the LG screen and ALPS keyboard and I do not want to let this thing go.

 

Well, if you are getting 64C when the fan is running at full speed and your computer is under light load then it looks like something is wrong. Use CPU to check your idle voltage. It should be 1.0V or less and probably 1.2GHz (see the attached) but may be 1.6GHz with half speed FSB. Have we excluded the possibility that Vista is set to High Performance and the CPU is running full speed, although it is doing very little?

John

 

Well, you could just check their specs. They're freely available as pdf's on their websites.

However, is your computer overheating? If not, there isn't anything to orry about.

How hot a CPU gets depends on a lot of things. Which CPU is it, what other hardware is in the system, how is it cooled, how big is the case, what's it made of, how's the airflow and so on and so on.

But if it isn't overheating, there isn't a problem.

 

Ok well Im starting to think Everest and speed fan cant read the sensors in my system right. RMclock reads 50-54 idling so Im not as worried anymore. Its even dropping to below 50 sometimes with firefox open. I changed my powerplan from high performance to thinkpad default if that helps. I think having RMclock open might be helping it too i dont know. but yes i havent had any overheating problems I am aware that the system will shutdown before cpu damage occurs. My volateg with cpuz hangs just at above or under 1 volt jumping around on idle.

 

That is looking much better.

I think you will find that the High Performance setting keeps the CPU running at full speed so that there is no time delay in ramping up the speed when needed. The default power plan will let the CPU adjust its speed (and therefore power used / heat produced) accordingto the actual load. I tend to leave my computer on the default all the time.

However, now that you have got RMClock, you might want to look into undervolting, which will drop the temperatures when the CPU is under load. I have yet to hear of a Core series CPU which will not run at less than 1.1V when on full speed. How much lower is a matter of trial: Step down gradually until your computer crashes then go back up 2 or 3 steps. Ideally you should run a long test with both cores fully loaded.

John

 

how would i go about undervolting in rmclock? i have another question, what does it mean if the temp of each core is say 53 but the processor temp sensor reads 76? (according to pcwizard07)

 

bump^^^^^^^^^

 

I just bought a HP dv9500t with the T7500 Core 2 Duo. Has anyone undervolted this processor yet? If so, please post your findings for the rest of us! Otherwise I will be playing around undervolting mine when it comes in to help with the temp. I will also be replacing the stock cpu paste with AS5 and buying a chill pad.

Thanks in Advance for your help!

 

Ouch, that's quite hot. My X6800 runs fairly cool with no notebook cooler.