2500K bad temps or bad chip?

[80Six]

Hi guys, this is my first post, my first OC and english is not my native language so, please, bear with me

I have and 2500k on a 690 II Adv, with good cable management, good airflow (I guess), 1 frontal fan intake, 1 rear & 1 top fans exahusting.

I have a 212+ with a push/pull configuration and I just re applied the thermal paste, I was using the original that comes with the 212, and changed it with an IC Diamond 7. Before changing my thermal I do some test to see what temps my chips was doing on stock:

With 212 paste: Idle 36cº - Full Load Prime95 after 30 min was 64cº

With IC Diamond: Idle 35cº - Full Load 53cº, again after 30 min of P95.

Room temps were, I would say, 20 - 21cº (I have no way to precisely measure it)

After that, I believe that, I do everything okay about thermal paste amount and heatsink installation :biggrin:

Here comes my doubts, I oced the 2500k to 4.5Ghz, at 1.350 vcore.
LLC Extreme
Phase Control: Extreme,
Duty Control: Extreme.
CPU Current Capability: 100%
VCCSA, VCCIO, CPU PPL, PCH voltage: Auto.

But my temps after 5 min of prime95 where on the roof (75+)

So I back up a little and put 4,2Ghz at 1,25 volt
After 30min of P95 my max temp was 65cº :|

So, just I get a bad chip? Did I do something wrong? Most probably :biggrin:

Can it be too much thermal compound/bad heatsink install, after I see how my temps decreased compared to older paste? Is 53º on full load, stock, still high on 21º ambient? :hmm:

Any help will be appreciated. Sorry for my grammar and thanks!

 

[tweakboy]

That is very normal temp. Your CPU is fine no worries.

You can take the 2500k to 4Ghz without touching voltage.

If you want more you have to play with the vcore. gl

 

[Xed]

75c isn't horrible but I highly doubt you need 1.35v for 4.5ghz unless you did get a dud of a chip.

 

[Matt1970]

By the way, your grammar is better than some people who only speak English.

 

[ShintaiDK]

Why is 75C a problem at 4.5Ghz? Its also 25C below tjmax.

 

[80Six]

Hey thanks everyone!
My problem is not the 75c part, but how fast (5 min) get to that temp. Maybe my fear come after watching a lot of people showing his 2500k +212 at 4.5 with temps below 70 after some hours of prime.

I guess I will try 4.5 again, with lower vcore or buy some liquid nitrogen :biggrin:

 

[ShintaiDK]

Hey thanks everyone!
My problem is not the 75c part, but how fast (5 min) get to that temp. Maybe my fear come after watching a lot of people showing his 2500k +212 at 4.5 with temps below 70 after some hours of prime.

I guess I will try 4.5 again, with lower vcore or buy some liquid nitrogen :biggrin:

The DTS is in the cores, so nomatter what you get there extremely fast. And thats how it should be. Fast up and then relatively stable. If you run for 2 hours you will find minimal difference in termperature vs running 5mins due to sensor location.

 

[schmuckley]

Why run Prime95 for hours?
3 runs of IBT + 2 runs of Hyper-Pi 32m should let you know if your OC is stable or not.
Was the hyper 212+ hot? It may be getting overpowered.
This sink is supposed to be better than hyper 212+ http://www.newegg.com/Product/Produc...max-_-35214023
as are many others. True,Silenx Effizio 120.NH-D14..Silver Arrow..etc..

 

[80Six]

The DTS is in the cores, so nomatter what you get there extremely fast. And thats how it should be. Fast up and then relatively stable. If you run for 2 hours you will find minimal difference in termperature vs running 5mins due to sensor location.

Didn't know that, I will try again with a little more confidence.

Why run Prime95 for hours?
3 runs of IBT + 2 runs of Hyper-Pi 32m should let you know if your OC is stable or not.
Was the hyper 212+ hot? It may be getting overpowered.
This sink is supposed to be better than hyper 212+ http://www.newegg.com/Product/Produc...max-_-35214023
as are many others. True,Silenx Effizio 120.NH-D14..Silver Arrow..etc..

I will try IBT and Hyper Pi, I don't even want to look at my temps when IBT start to test it :biggrin:

The 212 wasn't hot, but it was only 5 mins.
I was thinking on getting a H100i, since NHD14 in my country are expensive as hell (300USD) against 130USD H100i.

 

[MadScientist]

OP,
Your oc temp is not that bad and I agree with others that you may not need 1.35V to reach 4.5Ghz.
Using IBT (max ram), Core Temp, and CPUZ I'm running 4.6Ghz, 1.34V, 70C after 10 passes of IBT. I'm using a Corsair A70 HDT (heat pipe direct touch) CPU cooler with 2 fans, similar to your 212+, with Artic MX-4 TIM.

It might be the way you are applying IC Diamond to the cooler. On HDT coolers you should first fill in the gaps between the pipes with TIM.

Here's the correct way: http://archive.benchmarkreviews.com/index.php?option=com_content&task=view&id=150&Itemid=62&limit=1&limitstart=5

This was posted in a forum by an IC tech, post # 59: http://www.hardwarecanucks.com/forum/overclocking-tweaking-benchmarking/15520-innovation-cooling-7-carat-diamond-tim-test-results-thread-now-accepting-results-6.html

"Fill in the gaps between the Heatpipes and fins. Rub the IC Diamond in to the gaps very well to make sure there are no air pockets. ( Any air pockets or tiny bubbles between CPU and Cooler can greatly affect results.) Also warm up the HDT Cooler and the IC Diamond so they are easier to work with. This allows you to work the thicker compound into the gaps more effectively. Otherwise it can be a little hard to make it stay between the pipes and aluminium fins.
Then wipe off any excess leaving only the TIM between the heatpipes and aluminium fins and perhaps leaving a very slight haze over the copper of the heatpipes.
Then apply to HDT Cooler as you do with all other coolers, a pea sized blob on the CPU. Or the 2 thin lines on the aluminium fins. Try both and see which works best for your setup. The blob has worked best for me.
One last thing. Prior to application make sure the HSF and CPU are clean. To do this use Isopropyl Alcohol 90%+ pure (This is available from the chemist Drug store, and is very inexpensive.) or something like Arctic Clean and a lint free cloth or coffee filter paper. A clean HSF and CPU are very important for best performance. Good luck.

The thin lines were difficult to do as the IC Diamond is as thick as it is but can be done if the compound is warmed up well beforehand. I also found warming up the CPU with a hair dryer just before applying the IC Diamond helped get a more even spread when attaching the cooler. But you may not want to put that in instructions as it may seem a bit too much work for some people".

 

[80Six]

Hi MadScientist, thank you for the info. So that means that I can, probably, lower even more my temps! I will try it.

For now im on a 4.2Ghz and 1.20 Vcore, with nice temps and stable, im trying to see which is the minimum voltage for 4.2. Once I get that I will go for the 4.5Ghz again with lower volts, and if my temps aren't that good, I will reapply IC in vertical lines.

Thank you again.