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[Official] Delidded Club / Guide - Page 150

post #1491 of 33675
Quote:
Originally Posted by SonDa5 View Post

Sounds like possible pump out of TIM as well.
When your TIM pumps out and doens't work very well the heat increases and you need more voltage to get the same effect on the CPU stability because of the added electrical resistance caused by the heat.

you mean the stock Intel factory TIM pump out? maybe, it was poor quality (and fried crispy), I don't know, really what was first, the egg or the chicken.
what is interesting though is that soon after that, voltage degradation always occurred on chips from 2 different batches (Costa Rican week 19 and week 24) ... and that burned brown spot under CPU ... either Intel doesn't know anymore how to make good CPUs (highly unlikely) or EVGA doesn't know how to make boards anymore (very likely) ...
also even after I replaced the TIM under IHS of current CPU which lowered the temps of cores by good 30C, it did nothing to voltage requirements and the chip keeps degrading further, so ... I don't think that chip temperature has that whole lot to do with vcore degradation in normal usage.

EVGA boards stink like rotten eggs nowadays and I won't touch another one even with a 10 foot pole, never again.
post #1492 of 33675
Quote:
Originally Posted by chronicfx View Post

I am seeing the term pump-out used alot. Whats the explaination on that?


Basic concept

"Large and fast decreases in temperature when coupled with HLT instructions. A usage pattern that alternates between full idle and full load conditions will cause die temps to swing WIDE AND FAST, particularly with overclocked/overvolted CPUs.

This thermal cycling causes TIM pump-out, wherein the TIM gets ejected and displaced by air, which is of course not a good thing.

Greases also creep, again worsening the situation."


I think this happens more often with IB because of how quick it heats up and cools off. The die contact area is so small with such drastic temperatures is another reason.
Edited by SonDa5 - 10/24/12 at 11:12am
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B.K.T.
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post #1493 of 33675
Anyone know if liquid ultra is ok for the base of an NH-D14? Reviewers say it is nickel material and not aluminum on the bottom. I know that the coollabs TIM is incompatible with some metals. Also is it true that the liquid ultra does not "bond" like the liquid pro does. I would like to be able to switch to water at some point and that would require my D14 and chip not becoming one mass. If not I will just go with regular Noctua TIM on top of the IHS.
post #1494 of 33675
Quote:
Originally Posted by chronicfx View Post

Anyone know if liquid ultra is ok for the base of an NH-D14? Reviewers say it is nickel material and not aluminum on the bottom. I know that the coollabs TIM is incompatible with some metals. Also is it true that the liquid ultra does not "bond" like the liquid pro does. I would like to be able to switch to water at some point and that would require my D14 and chip not becoming one mass. If not I will just go with regular Noctua TIM on top of the IHS.

They claim that Ultra does not harden like Pro did.
It is safe for use on nickel and copper.
post #1495 of 33675
Thread Starter 
Quote:
Originally Posted by chronicfx View Post

I am seeing the term pump-out used alot. Whats the explaination on that?

Here's a quick one basically.

Take a TIM put it on your IHS and push your heat sink on it. after a while it starts to "spread" or pump out from the middle of the IHS and onto the sides causing temps to go up. I have actually experienced this very recently as my Max's for temps went up. not from vcore or anything same settings and ambients. it went up 4C.

I think this could also be applied very well to benching. For example you apply a lot of heat to lets say a candle (Shut up it's a bad example let me be) tongue.gif

You heat up the top of it and it melts making it more fluid and able to move. you then let it cool thus hardening. then you repeat for a while and eventually the melted wax overflows the side and drips. the same can be said with this pump out saying. as it heats it and and makes it more fluid and moves to the outer areas of the IHS or even the die of your CPU's. This also correlates to the amount of pressure you have on the IHS and the TIM from your heatsink as that pushes the material and makes it move. so the more pressure the better temps but higher chance of pumping out the TIM in the process of better temps.

I think it's longer than short tongue.gif
post #1496 of 33675
Quote:
Originally Posted by SonDa5 View Post

TIM drys out and loses ability to transfer heat.

Thanks. I didn't know that was possbile in such a short time or that there were so many volatiles in TIM that helped transfer heat.
post #1497 of 33675
Quote:
Originally Posted by Powermonkey500 View Post

They claim that Ultra does not harden like Pro did.
It is safe for use on nickel and copper.

It is definitely not safe with aluminium. This is why:



I assume that stuff includes at least a small amount of mercury.
post #1498 of 33675
Thread Starter 
Quote:
Originally Posted by chronicfx View Post

Anyone know if liquid ultra is ok for the base of an NH-D14? Reviewers say it is nickel material and not aluminum on the bottom. I know that the coollabs TIM is incompatible with some metals. Also is it true that the liquid ultra does not "bond" like the liquid pro does. I would like to be able to switch to water at some point and that would require my D14 and chip not becoming one mass. If not I will just go with regular Noctua TIM on top of the IHS.

Unless you delid you wont see real temp drops...unless your using sandy bridge I would recommend some IX if the base of the D-14 is completely flat with no bare pipes and such. that stuff rocks

(yes I'm still in the process of doing my review get off my back peoples!)

Sorry for the double post!
post #1499 of 33675
Quote:
Originally Posted by chronicfx View Post

Thanks. I didn't know that was possbile in such a short time or that there were so many volatiles in TIM that helped transfer heat.

Not really drys out but more pumps its greast/contact area away from the contact area of die and block. I think over clocked IB see this problem more than other CPUs because of how small the die is. Just not alot of contact area.

Read my corrected post above. http://www.overclock.net/t/1313179/delidded-ivy-bridge-club/1490#post_18442408
Edited by SonDa5 - 10/24/12 at 11:17am
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B.K.T.
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post #1500 of 33675
Quote:
Originally Posted by Powermonkey500 View Post

They claim that Ultra does not harden like Pro did.
It is safe for use on nickel and copper.


I wouldn't use Liquid Pro on a nickel plated Copper block.
B.K.T.
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