Intel 2500k

[Azurite]

Im so frustrated now. After having trouble with updating the bios on my new MB, i now still having variable core temps. I thought maybe the paste hadnt covered the surface completely after first installation of the D14. This morning i took off the D14 cooler and applied new thermal paste on. I have done this alot of times and im careful not to add to mutch or to litle. I screwed the cooler on alitle notch on each side til it was installed. Started the pc but still variable temps...28-22-38-25

It really seems like there must be something wrong with this chip. Any suggestions what to do?

I was really looking forward to overclock today. But i guess i cant do that vith 16-18 degrees in difference between highest and lowest core temp.

Ive used Real Temp 3.60 and latest aida64 extreme for monitoring temps.

 

[yassarikhan786]

Im so frustrated now. After having trouble with updating the bios on my new MB, i now still having variable core temps. I thought maybe the paste hadnt covered the surface completely after first installation of the D14. This morning i took off the D14 cooler and applied new thermal paste on. I have done this alot of times and im careful not to add to mutch or to litle. I screwed the cooler on alitle notch on each side til it was installed. Started the pc but still variable temps...28-22-38-25

It really seems like there must be something wrong with this chip. Any suggestions what to do?

I was really looking forward to overclock today. But i guess i cant do that vith 16-18 degrees in difference between highest and lowest core temp.

Ive used Real Temp 3.60 and latest aida64 extreme for monitoring temps.

Hey Azurite, no matter how even you apply the paste the temperatures will still remain variable. When my system is idle, my temps range from about 30 - 42ish, because my room is very hot. What are your load temperatures like?

 

[fcb]

Hey Azurite, no matter how even you apply the paste the temperatures will still remain variable. When my system is idle, my temps range from about 30 - 42ish, because my room is very hot. What are your load temperatures like?

Azurite's chip seems to be running a bit warmer on the 3rd core. There's a 16°C between the lowest temperature. Maybe it's normal?

 

[yassarikhan786]

Azurite's chip seems to be running a bit warmer on the 3rd core. There's a 16°C between the lowest temperature. Maybe it's normal?

It does look to be a massive difference. But if he is getting similar temps during load, then it would be a concern. At idle it does not really matter. My core difference ranges from about 8 - 12 C, but on load the core difference drops to about 4 - 6 C.

 

[fcb]

It does look to be a massive difference. But if he is getting similar temps during load, then it would be a concern. At idle it does not really matter. My core difference ranges from about 8 - 12 C, but on load the core difference drops to about 4 - 6 C.

Ya, I think you're right. It would make a huge difference if the CPU temperatures under test load were to have a similar difference in temperatures across all the cores.

Azurite, maybe you could try OCCT to test it and see how high the temperatures go for all 4 cores.

 

[SieB]

Yeah don't worry about it mate there are quite a few people on here that have a temp difference between cores with their 2500K. Mine has a 10 *c difference at idle but pretty much evens out on load, Ruthless or someone else I can't quite remember had a 15 *c difference on theirs.

 

[fcb]

That's great to know. Then, the temperatures on your chip should be pretty much normal.

 

[leejc73]

The only way you'll get rid of that difference according to Tom and others is to remove the package can and replace the tim on the cores. I get about an 8 degree spread across my cores under a water block so don't think yours is anything excessive. As asked before what are your load temps?

 

[yassarikhan786]

You can lap the CPU, but there's no need to for a SandyBridge.

 

[Youngie1337]

My 2500K also varies on the cores, I was a bit worried and was just thinking about reapplying the paste, but there's no need I guess. I never had the problem on my Q6600, they were all exactly the same, always.

Not going to lap my CPU

.

 

[Scoob]

Hi,

Just to add another voice...

My Core #0 on my 2500k can sometimes read up to 10c less than the hottest core under load. My friends 2600k is the same.

For the record I'm using an Antec Kuhler 620 with TX-3 - same results as with the pre-applied stuff it came with. My friend is using custom water cooling, not sure which paste.

My lapped Q6600 @ 3.6 had a discrepancy too - the first core pair (#0 and #1) were often 5c warmer than the 2nd core pair (#2 and #3) under load.

I did concern me (2500k), but repeated re-application of paste lead me to believe that it's just a quirk of these chips.

Edit: just to be clear, at idle my cores are usually exactly the same within 1 or 2 degrees.

Cheers,

Scoob.

 

[Azurite]

Thanks for replies. I tried Open Hardware Monitor 0.3.2 Beta, but i get same kinda readings with that. I really dont like that i have almost 20 degrees difference. I didnt try run it on full load since i was afraid i might ruin the chip. Will try it tonight without any o.c, and just watch the temps carefully. If it evens out then i guess its ok to o.c this chip.

So i shouldnt contact Intel or the company where i bought this cpu?

Noticed something very odd that explains the temp variables. Looks like 1 core is under full load all the time. I havent done anything to make it do this, so its a first time ive seen this and i find it very odd.

 

[yassarikhan786]

Hi,

That 100% value is in the max column. If you look at the value column you can see that the current usage is 0.0% for 3 cores and 0.4% for the first core.

 

[Azurite]

Hi,

That 100% value is in the max column. If you look at the value column you can see that the current usage is 0.0% for 3 cores and 0.4% for the first core.

Yeah your right.

Ran prime for 15-16 min and temps did even out alot.

 

[yassarikhan786]

See. You got nothing to worry about

 

[Azurite]

See. You got nothing to worry about

Had many cpu's and never seen that mutch difference before

I might try applying new thermal paste with vertical method later on. Maybe it helps a bit....

Right now, im gonna see how mutch juice this cpu wants for 4,5-4,6Ghz.

 

[yassarikhan786]

Cool.

The vertical method is supposedly the best way to apply the paste for Sandy Bridge CPU's.

 

[Azurite]

Cool.

The vertical method is supposedly the best way to apply the paste for Sandy Bridge CPU's.

yes. Had to check that one up today.

 

[fcb]

Hey this looks great. Seems like there isn't anything to worry about anymore. 6-7°C difference between the cores look pretty normal. I usually just use the 'rice' method where you make a small drop on the centre of the CPU. It shouldn't really matter how you apply it, but as long as you have just good enough that the pressure of the cooler spreads the thermal compound evenly over the surface. It's time to try out the OC.

 

[Azurite]

Hey this looks great. Seems like there isn't anything to worry about anymore. 6-7°C difference between the cores look pretty normal. I usually just use the 'rice' method where you make a small drop on the centre of the CPU. It shouldn't really matter how you apply it, but as long as you have just good enough that the pressure of the cooler spreads the thermal compound evenly over the surface. It's time to try out the OC.

Il probably get more even temps when i put on thermal paste vertically in a 1mm stripe. 9-13 difference in min-high temp is still a bit high. But im glad it isnt 18-20 hehe