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Discussion Starter · #1 ·
I have overclocked my 2500k to 4.2GHz with 1.290v (minimum stable vCore for my chip). CM212+ has a GT 1450rpm on it, then a Xilence Redwing at the back.

Cores were reaching about 72-75 but I have placed another fan inside my case just above the hard drives, so basically the 140mm fan at the front blows air in, the top half of the 120mm fan inside will flow that through the case to the CPU (and the bottom half giving the benefit of adding air to my GTX570 which works amazingly - OC'd to 900MHz temps are down from 85deg to 71deg).

Temperature in my room fluctuates somewhat, sometimes it can get quite hot and I idle at 31-34 and sometimes like last night it's freezing and I was idling about 27.
I stressed the other night when it was warm and got 69 and last night 65 degrees max.

So..first things first, are those temps OK?

Secondly, I am going to replace the case fans all round with Noiseblocker PL2/PK2's, the Redwing at the back is noisy and old and the NB's should give a nice even airflow through the case.

Should I also buy some MX-2 at the same time to replace the stuff that CM supply? Not really sure I trust the 212+ to be honest, its mounting hardware is just rubbish (the cooler twists a worrying amount, I've remounted it to exact instructions and others have the same thing) and whilst I've filled in the crevices of the dch's with thermal paste I still don't like not having an entirely flat surface. Really wish 'd kept my baram to be honest
 

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Quote:


I stressed the other night when it was warm and got 69 and last night 65 degrees max.

Thats fine, the processor wont really get that hot in normal use anyway.
 

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Granted I have water cooling, how long were you stress testing it for.

Edit: Reading Comprehension
 

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Discussion Starter · #4 ·
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Originally Posted by andrewmchugh
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Thats fine, the processor wont really get that hot in normal use anyway.

ah sorry I actually forgot a little bit on the end there
- is 69degrees OK for 4.2GHz? Every man and his dog seems to have pushed their 2500k to 4.5GHz+ and I can't help but think push it further and the temps will hit the danger zone.
Try it and see I suppose

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Originally Posted by B-rock
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Granted I have water cooling, how long were you stress testing it for.

Edit: Reading Comprehension

18 hours stress
 

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I think I've seen your cooler from word around OCN and it should be good. I just did a 10 hour stress test on mine, didn't change much after an hour. But the max a core reached for me was around 65. Given your cooling, have you tried re-seating the processor?
 

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Originally Posted by timmygcsc2308
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ah sorry I actually forgot a little bit on the end there
- is 69degrees OK for 4.2GHz? Every man and his dog seems to have pushed their 2500k to 4.5GHz+ and I can't help but think push it further and the temps will hit the danger zone.
Try it and see I suppose

18 hours stress


Yeh Its high for a 4.2 OC but its not dangerous, is the airflow ok..and yeh maybe you could reapply TIM.. on the other hand you chip might just be a dog.
 

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Discussion Starter · #7 ·
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Originally Posted by andrewmchugh
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Yeh Its high for a 4.2 OC but its not dangerous, is the airflow ok..and yeh maybe you could reapply TIM.. on the other hand you chip might just be a dog.

like I say, I've added an internal 120mm fan for airflow (the pathway is clear i.e. I've painstakingly cable tidied) and it did help somewhat, I'm really not sure I trust the rear 120mm fan though so that's defo up for replacement.

Processor has been reseated and 110% installed correctly, will pick up some MX2 then since the paste CM have been supplying with newer 212+'s is meant to be rubbish:
http://www.overclock.net/air-cooling...plus-club.html

Quote:


EDIT: The current CM hyper 212+ seems to come with something different than the Thermal Fustion 400 and is of a lesser quality than the Thermal Fusion 400

And yes, I don't think my i5 is a golden sample that's for sure lol
 

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Mine is running 4.2Ghz with 1.270v and it idles at 38c and loads at 56c as for my 570 i think its defective.... It idles at 50c loads at 65c on console ports and 73c on high demand games.
 

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Discussion Starter · #9 ·
buzzing with an update!
No matter what I've tried in terms of cooling (reseating CPU HSF, adding fans here there and everywhere blah blah) my temps were still shooting up to 69 degrees.

Well..seems ASRock have this wonderful feature in the UEFI BIOS whereby you change the multiplier to manual mode and it hides LLC
so I changed it back to auto, changed LLC to 3 instead of the default 5, and enabled manual multi mode again - it seems to retain the LLC setting. I have managed to chop the vcore down to 1.280 in the BIOS and CPU-Z is reporting a constant 1.272v under idle and stress and with a blend test I'm getting 63degrees max - I could now I guess either try lower the voltage more or upping the multi.......well this is OCN so I suppose the latter is the right option
 
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