Vaslty different core temps. E8500

[Licky]

hi, long time user of the site, first time poster

Ok, to the point, not to long ago i got my EP45-ds3, INTEL E8500, and a nocrtua cooler.

Using real Temp i am a bit worried about the temperature difference between the two cores. On idle i am getting 26/32, that is a big difference between cores.

Also, looking at the two core usage, it looks like more of the load gets shoved to one core, though both do get used, a vast ammount does get shoved to one core

please comment

 

[Proximon]

Well, sure one core will be used more than the other.

Yes 6 degrees is kind of a big spread, but the numbers are excellent.

What are the temps when prime95 is running?

 

[qwertycopter]

1) Some of the 45nm cores have stuck sensors. This only affects idle temperatures readings, not load. What happens is the sensor can't give a reading below a certain number.. it sticks. So your hotter core may stick at 32 degrees and can't give a reading any lower than that. It's possible the 32 degree core is actually cooler than its reporting.

2) In Vista you can set the affinity of a program to make it run on a specific core:

http://www.howtogeek.com/howto/windows-vista/start-an-application-assigned-to-a-specific-cpu-in-windows-vista/

3) Did you calibrate RealTemp for idle temperatures? To me it looks like you did. Below 60°C RealTemp will inaccurately report the core temperature because apparently the DTS sensor does not measure temperature linearly below this point. The E8x00 series tends to report temperatues 5°C too high between idle and about 60°C. In real temp you can adjust for this for more accurate readings. Read more about it here:

http://www.techpowerup.com/realtemp/docs.php

 

[Licky]

hi guysm first of all thanks for the replys

i didn't try Prime95, though i tried OCCT. I only ran for 5 mins, as don't have much time at the moment. Temps got up to 32 and 39 degrees. Still has that same spread amungst the cores.

I also did the test sensors feature on Real Temp

that was the result i got...

this may sound a tad syupid, but it does not make much sense to me.

ar, and one other thing, i'll read those links once i get home leter tonight

 

[Licky]

any other comments???

 

[someguy7]

Normal

 

[jlawmi]

Hi,
I also have a pretty large difference of core temps. From what I've read its not a big deal, but at idle, it is about 9 degrees C. When loaded under prime 95 I also get about 6-7 degree difference.
(temps are from speedfan and realtemp)
Since both of them are typically <40 degrees idle, and less than 50 at load I'm not really worried about it.

James

 

[Licky]

ok thanks for your help guys .

JW do you have the stock cooler? and is it OCed?

 

[Proximon]

I think you are fine, just keep monitoring it.

 

[Licky]

RMA'ed it this morning, i couldnt help it

though the new one, i "think" it has a stuck sensor. It sits at 32 at idle, though sometimes under load will go up to 33, and sometimes will jump up to 44 quickly (same as other core)

 

[Licky]

any one?

 

[Licky]

at all?

 

[Shawnhath]

on real temp try the temp sensor button

 

[Licky]

tried that, it says it is stuck

 

[Licky]

anyone