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E8400 Temperature

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April 11, 2008 8:10:40 PM

I used coretemp 0.97.1 with the stock intel cooler and on Core #0 and Core #1 are both showing 62 deg celcius. So thought it was pretty high. Replaced it with Artic Freezer 7 Pro and it is still showing 62 deg both cores.

Tried Everest trial version and it shows CPU 23 Degress Celcius with CPU core #1 and #2 at 62 deg Celcius.

I havnt overclocked yet.

Freq is 3000.05Mhz (333.34 x9.0)
VID 1.125v (I guess thats the CPU voltage?)

I know the E8400 has temp issues but did anyone have a program that was more accurate to what the bios temp reads? Should I just go off the bios temperatures ? And are those even accurate with the wolfdales? I have a Gigabyte P35-DS3L Rev 2.0 motherboard.

let me know your comments . Also if anyone has my same set up, I got Crucial ballistix Tracers DDR2 800 2 gigs let me know how u overclocked it to 4.0ghz and what temperatures its at after OCing! THanks

More about : e8400 temperature

April 11, 2008 8:16:15 PM

Are those idle or load temps? If they're idle it sounds really quite hot, even for load they're hot... Have you tried using RealTemp and checking your distance from the TjMax? I hear that's a more reliable reading than the direct from the sensor readings...
April 11, 2008 8:20:08 PM

I just downloaded and tried Real temp 2.4 and it went down from the original 62, to 52 Deg Core temp, 52 deg min temp, and 52 deg max temp which is alittle better but insanely high. Distance to TJ Max is 43 43 it shows. What does that mean? Also, how do you test IDLE vs Load?
Sorry I'm a newb.
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April 11, 2008 8:36:35 PM

I would probably re-seat the HSF. Those temps are WAY too high for a E8400.
April 11, 2008 10:19:47 PM

Shadow703793 said:
I would probably re-seat the HSF. Those temps are WAY too high for a E8400.



Lol, yeah. Also, did you forget to put in thermal compound? On full load, my Q6600 get 59 degrees C at 3.6ghz, 70 at 4ghz, on air cooling. E8400 has half the cores and use 45nm process compared to 65nm. It should run cool.

Sensor readings are accurate. And use Prime95 for stability and temp test.
http://www.mersenne.org/freesoft.htm
April 12, 2008 9:24:41 AM

dagger said:
Lol, yeah. Also, did you forget to put in thermal compound? On full load, my Q6600 get 59 degrees C at 3.6ghz, 70 at 4ghz, on air cooling. E8400 has half the cores and use 45nm process compared to 65nm. It should run cool.

Sensor readings are accurate. And use Prime95 for stability and temp test.
http://www.mersenne.org/freesoft.htm




The first time I installed the E8400 to the mobo socket, I used the stock intel heat sink. I took off the thermal compound and replaced it with artic silver pro formula 5 thinking it would be better. Noticing that the temperature was too high I reapplied it twice, using a smaller amount and got the same 62 deg. So last resort I swapped the stock cooler for the Artic Freezer 7 Pro cooler and used its stock thermal compound it came with because I heard its good stuff. So yes I have been using the thermal compound.

And now I'm going to take my mobo out and Tripple check everything.
April 12, 2008 9:41:58 AM

What does it show in the BIOS?

What are your ambient temps. I live in a warm climate with 25-30 degree ambient temperatures. Always get higher readings than what others claim are the norms.
April 12, 2008 3:16:18 PM

Maximus_Delta said:
What does it show in the BIOS?

What are your ambient temps. I live in a warm climate with 25-30 degree ambient temperatures. Always get higher readings than what others claim are the norms.



Of course it'll higher if ambient temperature is higher, but 62 degrees is still way too high for any climite. Does the case have good airflow? What "environmental temp" is the motherboard sensing? Open the side of the case and stick your hand in, is the air warm?
April 12, 2008 3:28:18 PM

First off... people need to know the sensors.

There are 3.

Tcase sensor is one, that is between the 2 cores. This sensor should give cooler readings, and is what the bios would display, simply because it shows a single temp reading.

The other 2, are on the cores themselves, which will be hotter. They are referred as Tjuction Sensors, or DTS (Digital Thermal Sensor).

What I'm trying to stress out here, is try not to get the temps mixed up, and understand that you need to figure out the apps you use in order to understand what it is showing you.

The Thermal Spec by Intel are the max temps for the Tcase Sensor, while the Tjuction max are what the cores max will be, like on CoreTemp.

Wealth of info:
Core 2 Quad and Duo Temperature Guide

All I can say is if your having high temps at idle, chances are if your using the push pin type of HS, one of those pins are not secure. But if your getting high temps from loads, perhaps your airflow isn't enough to cool it to your satisfaction.
April 12, 2008 3:55:40 PM

I think the E8400 has 3 thermal sensors .2 For the 2 cores. The highest temperatures are core temps,inside the Cpu and the other is ambient temerature. I don't know if thats true . I own a E8400 and I get exactly the same temperatures;About 62 on load and 49-50 idle with core temp. And with everest I get 36 ,that is the third thermal sensor.
April 12, 2008 4:18:00 PM

Guys, do some google searches--many e8400s have faulty temperature sensors. Nothing wrong with the chips per se, but the sensors do not give correct readings.

If people were not so desperate to get a hold of 8400s and they were in greater supply, I suspect there would be a lot of returned chips.

There may be a fix to recalibrate the sensors--I read a rumor about one but can't confirm.

Good luck!
April 12, 2008 4:22:54 PM

If it's faulty rma it while you still can. :p 
April 12, 2008 8:17:49 PM

i have the same thing here (P35-DS3L - e8400) and the system hangs up when it reaches 110 c the third sensor
and i dont know why its gone so high while stressing using orthos
April 12, 2008 8:23:57 PM

forget to mention that i checked the sockets they r in place and also i tried
to manual speed fan control running at full speed...nothing happend
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April 13, 2008 12:42:27 AM

aretalha said:
forget to mention that i checked the sockets they r in place and also i tried
to manual speed fan control running at full speed...nothing happend

What voltage is the CPU getting?
April 13, 2008 7:52:24 AM

Shadow703793 said:
I would probably re-seat the HSF. Those temps are WAY too high for a E8400.



Thanks shadow for your help your always around arent you? lol...You helped me build my computer by the way in my other posts.

I reseated the processor in the mobo socket, just to make sure it was in right. Reapplied some new artic silver pro thermal compound, switched my Artic Freezer Pro fan facing the back of the case to improve air flow instead facing the front. I also made sure the push pins on the cooler were all the way in. I just Bought the 120mm side fan for the Antec 900 case and set it to High Speed. All other fans are set to Medium, top fan is set to High. And its stone cold right now i got the fan on in my room im freezing and its still showing the same 52 deg. I guess i'll just go with what the bios say because they always show 31-39 deg. Now I overclocked from 3.0mhz to 3.6mhz stable and its still showing 62 in coretemp and 52 deg in Real Temp again. I guess a sensor is off and it will never read right. Its all good though E8400 is super fast for me right now at 3.6mhz. I been trying to OC to 4.0mhz but it always freezes when I play hellgate london. But thats another issue. I have a 550 watt power supply, could that be a reason for not being ablt to overclock as high? For now 3.6mhz is a huge improvement but i'll always wonder...is it enough? lol
April 13, 2008 9:12:30 AM

just a Q? while ( oc`ing to 3.6 ghz)
my idle temp now:
cpu:34 core#1#2 : 50-51

case opened
stress temps:
cpu:62 core#1#2 : 79-80
is that normal ???????????????thats all
April 13, 2008 1:38:40 PM

You might be needing a bios update.. didn't see anyone mention that.

I think this is your MB:

GA-P35-DS3L (rev. 2.0)

Since your on a wolfdale, the F8a would be a beta they have out.
April 13, 2008 5:46:47 PM

i,ve just flashed my bios...
showing (on everest) ----> (37) at idle and (53) stress for cpu temp.
(case still opened and if closed temps will go up..)
bored
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April 13, 2008 5:59:21 PM

aretalha said:
i,ve just flashed my bios...
showing (on everest) ----> (37) at idle and (53) stress for cpu temp.
(case still opened and if closed temps will go up..)
bored

What is the lowest that you can set the CPU voltage to?
April 13, 2008 6:38:40 PM

hey i have the same issue with my e8400 it runs around 50 idle and almost 62 when under full load . ive taken the exact same steps to check that the there is proper cooling. I'm using an asus p5e motherboard, i used three different ways to check the temperature and generally found that the bios is the closest its about 10- 15 degress celcius of and core temp is 15 -20 degress celcius of. dont use speed fan cuz thats probably the most inacurate program ive ever come across. :??:  Ive touched the heat sink of the cpu and its fairly cool and theres no heat around that area that would suggest the cpu is running at 60 degrees.

Try ignoring the people who dont have a clue about this processor cuz they will only cause u headaches and miss judgment
Most of the intelligent people in this form stated that there is an issue with the chip sensors which give an inaccurate reading and thats the reason behind your delema. I am aware that these processors do run very cool probably around 30 degrees. so dont woory about overheating. they are excellent overclockers without much hassle. If u can, try to exchange it. i wasent able to exchange mine becouse the store that i bought mine at dosent think that mine is defective :heink:  .

System: Asus p5e|| E8400 @4Ghz|| 4 Gb HP2 Mushkin ram|| ATi 3870 || coller master 550 watt power supply
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April 13, 2008 6:43:11 PM

biohazard369 said:
hey i have the same issue with my e8400 it runs around 50 idle and almost 62 when under full load . ive taken the exact same steps to check that the there is proper cooling. I'm using an asus p5e motherboard, i used three different ways to check the temperature and generally found that the bios is the closest its about 10- 15 degress celcius of and core temp is 15 -20 degress celcius of. dont use speed fan cuz thats probably the most inacurate program ive ever come across. :??:  Ive touched the heat sink of the cpu and its fairly cool and theres no heat around that area that would suggest the cpu is running at 60 degrees.

Try ignoring the people who dont have a clue about this processor cuz they will only cause u headaches and miss judgment
Most of the intelligent people in this form stated that there is an issue with the chip sensors which give an inaccurate reading and thats the reason behind your delema. I am aware that these processors do run very cool probably around 30 degrees. so dont woory about overheating. they are excellent overclockers without much hassle. If u can, try to exchange it. i wasent able to exchange mine becouse the store that i bought mine at dosent think that mine is defective :heink:  .

System: Asus p5e|| E8400 @4Ghz|| 4 Gb HP2 Mushkin ram|| ATi 3870 || coller master 550 watt power supply

What voltage is your CPU running at?
April 13, 2008 6:47:02 PM

Quote:
What voltage is your CPU running at?

i beleive its 1.920V didn't have to change any settings in bios to overclock this thing lol totally stable
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April 13, 2008 6:52:39 PM

biohazard369 said:
Quote:
What voltage is your CPU running at?

i beleive its 1.920V didn't have to change any settings in bios to overclock this thing lol totally stable

:ouch:  You are overvolting the bejeesus out of that puppy!, have you tried running it at 0.85v? if so what temps was it at ?
April 13, 2008 6:56:50 PM

what do u mean u didnt have to change any setting in the bios
how u oc`ed then its default is 1.10v?....
:) 
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April 13, 2008 7:00:37 PM

aretalha said:
what do u mean u didnt have to change any setting in the bios
how u oc`ed then its default is 1.10v?....
:) 

[:mousemonkey:2] 1.10v? it should be 0.85v, which would be nice.
April 13, 2008 7:04:50 PM

Quote:
:ouch:  You are overvolting the bejeesus out of that puppy!, have you tried running it at 0.85v? if so what temps was it at ?


my bad typo, i read the wrong readings lol 1.20, i didn't change anything for the voltage bios wont let me do that for some akward reason bropbably need to get the latest update for this motherboard, just changed the fsb from 333 to 450. my temps only went up 10 degrees under full load
April 13, 2008 7:09:40 PM

another q?
can i depend on stock cooler while --->(fsb 450)..
it worked fine but i returned it back cause am not sure
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April 13, 2008 7:10:25 PM

biohazard369 said:
Quote:
:ouch:  You are overvolting the bejeesus out of that puppy!, have you tried running it at 0.85v? if so what temps was it at ?


my bad typo, i read the wrong readings lol 1.20, i didn't change anything for the voltage bios wont let me do that for some akward reason bropbably need to get the latest update for this motherboard, just changed the fsb from 333 to 450. my temps only went up 10 degrees under full load

Heh heh, no worries on the typo. The point I've been trying to get at is that no-one seems to know how low the voltage should be, you are running 1.2v so little wonder that it over clocks so easily, try setting the voltage to 0.85v (if you can) and then see what OC you get ;) 
April 13, 2008 7:17:48 PM

Quote:
Heh heh, no worries on the typo. The point I've been trying to get at is that no-one seems to know how low the voltage should be, you are running 1.2v so little wonder that it over clocks so easily, try setting the voltage to 0.85v (if you can) and then see what OC you get ;) 


hey no wories thanks for the advice il try that, seems like everyones getting a hand on this fourm :ange: 
April 13, 2008 7:24:01 PM

it dont boot at all using 0.85v
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April 13, 2008 7:44:02 PM

aretalha said:
it dont boot at all using 0.85v

[:mousemonkey:2] Interesting, so what is the minimum voltage required to get a successful boot. I ask because the lowest my 680i board will go is 1.15v and according to Intel the VID is 0.85V – 1.3625V.
April 13, 2008 8:06:33 PM

Mousemonkey said:
[:mousemonkey:2] Interesting, so what is the minimum voltage required to get a successful boot. I ask because the lowest my 680i board will go is 1.15v and according to Intel the VID is 0.85V – 1.3625V.



Yeah, right, it will never boot on 0.85v. Basically 1.15v is the lowest for sucessful boot, so it's all good there. :p 
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April 13, 2008 8:15:41 PM

dagger said:
Yeah, right, it will never boot on 0.85v. Basically 1.15v is the lowest for sucessful boot, so it's all good there. :p 

Being as a 65nm quad idles at a little over that, I was expecting better from a 45nm CPU, the ability to idle on less than a volt at least
April 13, 2008 8:27:18 PM

Mousemonkey said:
Being as a 65nm quad idles at a little over that, I was expecting better from a 45nm CPU, the ability to idle on less than a volt at least



You'd need a good 65nm quad to idle on that. Mine can't. Why does it matter anyway? Power savings? :p 
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April 13, 2008 9:00:35 PM

@OP: You should defenently checkout: P35-DS3L OCing HOW TO. I should have posted this earlier, lol, but didn't see your motherboard specs.
July 8, 2008 2:15:47 PM

I just purchased an E8400 last weekend. I had a system running a P4 670 that fried last week after the power supply failed. I just came across this thread and it has me a little concerned. My processor is reading the same as many of the other posters...49 - 50 degrees C at idle and more under load. I keep hearing that this is one of the best Dual Core processors you can get right now but my concern is how this temperature issue affects overclocking and thermal control. I have mine overclocked to (waiting to add one more case fan) to 3.3 GHz with no change in temperature. My Zalman cooling fan doesn't even feel warm to the touch, which is a good sign. I'm still doing research into how much more I can overclock and still maintain a reliable/durable/stable system. What I'm afraid of is that if the false temperature reads 100+, even though it is much less, won't the process still go into a safe mode as if it really was overheating? I also read above there might be a fix to recalibrate and fix these processors? Does anyone know? Do all of the Wolfdale processors have this issue? Is there any advantage to exchanging for an E8500?
October 16, 2008 5:33:06 AM

I am having somewhat of a same problem. Idle @ 48C and loaded @ 63C with stock setting. with this temp i cannot even try to OC it. :( 
!