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post #1 of 13 (permalink) Old 11-16-2016, 12:13 PM - Thread Starter
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Hi Silicon Lottery!

I plan on deliding my 4790k and was wondering if you would be willing to share what epoxy you use to re-attach the IHS and what liquid electrical take you use on the resistors.

Thanks!



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post #2 of 13 (permalink) Old 11-16-2016, 12:19 PM
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IMO, you shouldn't use an epoxy to permanently reattach the IHS. It creates a small gap between the die and the IHS, which is what causes a lot of the heat problems in the first place. Put a good liquid metal TIM on the die and lay the IHS back on top. Pick up some liquid electrical tape and put a thin layer on the exposed components on the PCB. Then reinstall the CPU back into the motherboard. Be sure to hold the IHS in place as you lower the locking arm.

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post #3 of 13 (permalink) Old 11-16-2016, 01:10 PM
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Quote:
Originally Posted by NBrock View Post

Hi Silicon Lottery!

I plan on deliding my 4790k and was wondering if you would be willing to share what epoxy you use to re-attach the IHS and what liquid electrical take you use on the resistors.

Thanks!

This is similar to what we use, but comes in a smaller size:
Silicone
Liquid electric tape

Black Friday is coming up, and we're going to have a really low price on delidding ourselves if that interests you btw. thumb.gif

Quote:
Originally Posted by The EX1 View Post

IMO, you shouldn't use an epoxy to permanently reattach the IHS. It creates a small gap between the die and the IHS, which is what causes a lot of the heat problems in the first place. Put a good liquid metal TIM on the die and lay the IHS back on top. Pick up some liquid electrical tape and put a thin layer on the exposed components on the PCB. Then reinstall the CPU back into the motherboard. Be sure to hold the IHS in place as you lower the locking arm.

If you use enough pressure when drying, there will be no difference in temperatures compared to just letting the IHS sit free. There won't be a gap (at least not nearly as large) like there was before delidding, I've tested this dozens of times.

If the gap is a big concern to you, you could paint a small amount of silicone on the inside of the IHS like I've shown in the picture below. The silicone will be squished down once you put the IHS back on, so it should be the same as letting the IHS sit free.

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post #4 of 13 (permalink) Old 11-16-2016, 01:27 PM - Thread Starter
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Quote:
Originally Posted by Silicon Lottery View Post

This is similar to what we use, but comes in a smaller size:
Silicone
Liquid electric tape

Black Friday is coming up, and we're going to have a really low price on delidding ourselves if that interests you btw. thumb.gif
If you use enough pressure when drying, there will be no difference in temperatures compared to just letting the IHS sit free. There won't be a gap (at least not nearly as large) like there was before delidding, I've tested this dozens of times.

If the gap is a big concern to you, you could paint a small amount of silicone on the inside of the IHS like I've shown in the picture below. The silicone will be squished down once you put the IHS back on, so it should be the same as letting the IHS sit free.



Thanks so much for the response, I really appreciate it. FYI both links are to the same thing.
Everything I have read or heard about you guys is top notch. I'll keep my eye open for your black Friday deals.



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post #5 of 13 (permalink) Old 11-16-2016, 02:15 PM
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Quote:
Originally Posted by NBrock View Post

Thanks so much for the response, I really appreciate it. FYI both links are to the same thing.
Everything I have read or heard about you guys is top notch. I'll keep my eye open for your black Friday deals.

Whoops, here's the electric tape.
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post #6 of 13 (permalink) Old 11-16-2016, 05:49 PM - Thread Starter
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Originally Posted by Silicon Lottery View Post

Whoops, here's the electric tape.

No worries! Thanks again for the info, I appreciate it.



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post #7 of 13 (permalink) Old 01-06-2019, 12:35 AM
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Sorry to resurrect this thread..

I'm going to be de-lidding my 8700k and was wondering if the silicon referenced in this thread is permanent once cured, or if it can be removed again with the delid die mate in the event that a re-application of liquid metal is needed. Also, since it seems the liquid electrical tape is recommended to cover exposed components on the PCB under the IHS, would it also be strong enough to hold the IHS down if applied around the edges?

I'd feel more comfortable if the IHS were re-attached some way, however it would seem like it would be a bad move to use a method that was permanent..?

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post #8 of 13 (permalink) Old 01-06-2019, 01:18 AM
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LET works but if you don't have it you can use cellulose based clear nail polish (most clear is cellulose).
You don't need to re-apply liquid metal, mine ran for 3 years or so before I redid it and it made literally no difference.
To fasten the IHS just use RTV silicone (gasket maker). Use small dabs on the corners so it doesn't interfere with your IHS gap. I prefer to use nothing since the socket latch holds it in place.
I lay my case on it's side when I put the CPU in, center the IHS then latch it down.
There are several guides for all this.


Not sure why you'd want to but I'm sure clear nail polish and LET would hold the IHS down but I'd be worried about things like that or superglue bonding to the PCB and tearing it if the lid ever needed to come back off.

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post #9 of 13 (permalink) Old 01-06-2019, 08:34 AM
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Quote: Originally Posted by white owl View Post
LET works but if you don't have it you can use cellulose based clear nail polish (most clear is cellulose).
You don't need to re-apply liquid metal, mine ran for 3 years or so before I redid it and it made literally no difference.
To fasten the IHS just use RTV silicone (gasket maker). Use small dabs on the corners so it doesn't interfere with your IHS gap. I prefer to use nothing since the socket latch holds it in place.
I lay my case on it's side when I put the CPU in, center the IHS then latch it down.
There are several guides for all this.


Not sure why you'd want to but I'm sure clear nail polish and LET would hold the IHS down but I'd be worried about things like that or superglue bonding to the PCB and tearing it if the lid ever needed to come back off.
I may just leave it unattached then; thinking about trying to keep it perfectly still while clamping it down in the socket made me a little nervous.

Hypothetically, will the RTV silicon break loose if your were to need to get the IHS off again in the future? And I assume when you were talking about the liquid tape or clear polish you meant to cover the PCB around the die?

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post #10 of 13 (permalink) Old 01-06-2019, 08:40 AM
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Hi,
Liquid tape

One might need to redo a delid if not done properly
I had to redo my silicon lottery delid
They left the original Intel sealant instead of removing it so the contact is minimal for the liquid metal and just used more LM which drooped.... from too much space...

Any silicone based sealant can be used to reseal the cap
Just a small bead across the bottom and up a little to catch any if it drips... and a couple dots on the top to hold it till it dries.
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