4670k Delid

Master&Puppet

Master&Puppet

New member
Just thought that I'd share this. Delidding Haswell is an identical process to Ivy which nets the same results if you like taking the substantial risks into your hands.

I should mention that if you do this yourself be aware of the contacts which sit to the left of the cores, these were not present on IB and you probably don't want to be scratching blades over and around them.

NwY18Ue.jpg


This chip is cooled under an H100i. Before delidding the overclock was limited to 4.4 @ 1.24v due to heat (max core temp 82C under IBT AVX). Delidding netted around a 20C drop at the same settings which has swung the balance towards being voltage and not heat limited.

M&P
 
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So Haswell is confirmed for another thermal paste on the IHS job... I really hope Intel don't continue doing this, they are only holding their own CPUs back.

A 20c drop is huge, should be able to push them that bit further with a de-lidded one.
 
I think it's crazy that Intel have done this 2 times in a row now. Surely they want the bragging rights of high overclocks at good temps and they would achieve this by simply improving their past or soldering the die. as SieB says, they're just holding their own product back
 
OK lets think about this differently....

SO it gets hot and AUTO throttles the core clock back no matter what its running at....

So you could say by letting them get hot they are stopping people raging the overclocks and therefor saving the CPU's a little....

Just a thought to keep in mind when not everyone has me on their backs about manual volt settings and the lowest possible volts etc....... ;)
 
tinytomlogan said:
OK lets think about this differently....

SO it gets hot and AUTO throttles the core clock back no matter what its running at....

So you could say by letting them get hot they are stopping people raging the overclocks and therefor saving the CPU's a little....

Just a thought to keep in mind when not everyone has me on their backs about manual volt settings and the lowest possible volts etc....... ;)
Click to expand...

My hero :notworthy:
Can I have a poster of you and hang it above my bed?

Anyway yeah, you do make a good point. But what about the CPUs that don't overclock (i3 and non-K series). I mean, it doesn't matter much now, but if they used proper thermal paste they could ship them out with higher clock speeds. That would be particularly interesting for the i3 series as they suffer the worst competition from AMD (they make some pretty good cheap chips, can't deny that).
 
I've delided several chips now and I think that the heat issue is a much caused by the black paste that sticks the IHS onto the PCB as it is by Intel's TIM. The black paste is layered thick and that causes a great gap at the point where the IHS and cores meet which in turn results in the need for a thick bit of TIM and that hardly makes for a great heat conducting environment. That's why I've removed the black paste in the photo above.

In terms of what I've come to expect of Haswell so far, having played with several of these and IB beforehand, is that Haswell behaves similarly to IB but runs slightly hotter under the same conditions (up to about 10C).

Most chips with mid range coolers will hit the early 4ghz range. It takes enthusiast cooling to hit 4.5+, chip dependent of course. Delidding removes the heat issue if you have decent cooling.

That chip I've just cleaned up is now running at 4.6ghz @ 1.312v under load reaching a max temperature of just 63C in IBT.
 
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^If you've delidded multiple, you can probably tell me this:
Do you stick the IHS back on the CPU itself or do you leave it loose and just clamp it in the socket?
 
Well that depends on what you put on the cores in my opinion. If you use a paste like MX4 then I wouldn't use anything else because the paste is a strong enough glue by itself.

I use liquid ultra which has little affect as a glue so I put a tiny bit of MX4 around the IHS to hold it in place. Some people use silicon, it doesn't really matter. To be honest you don't have to glue it down at all if you are going to clamp it down and leave it. I just stick it on for the sake of making the whole chip easier to remove.
 
Yeah, I was thinking of buying a de-lidded 4770k so that I don't have to take any risk myself :p Don't really care if I pay a tad extra or if it's not a great overclocker. 4GHz is all I need.

But I was worrying about what would happen in shipping when the 2 parts are not actually attached to each other :p
 
Feronix said:
Yeah, I was thinking of buying a de-lidded 4770k so that I don't have to take any risk myself :p Don't really care if I pay a tad extra or if it's not a great overclocker. 4GHz is all I need.

But I was worrying about what would happen in shipping when the 2 parts are not actually attached to each other :p
Click to expand...

Yea that's why I glue them back together! I could do it for you if you want? Put up a post in the wanted section and I'll get back to you.
 
Master&Puppet said:
Yea that's why I glue them back together! I could do it for you if you want? Put up a post in the wanted section and I'll get back to you.
Click to expand...

Need to sell my current rig before I can build my new one mate! I'll get back to you once I've got the money if that's okay? :)
 
M&p, nice delid. I didn't think you were going to delid IB let alone Haswell. My IB is still breasting away at ridiculously low volts, but I've got a new haswell build I'm starting so that will be getting its head cut off soon!
Did you use a blade or that crazy vice method?
 
M&P, you should go start a little delidding shop, i would love to have my i7 4770k delidded but i'm worried i'll mess up and have to buy i new one :(
i also have a friend who want's his i7 3770k delidded and we are both live in London
 
such risk involved in deliding, could easily lose a lot of money that way.
it would be useful to have a guy who could sort it out for a fee lol.

if i had an ivy or haswell cpu i'd be tempted to delid it, i'd be afraid though that the knife goes in and the guts come out :eek:
 
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