Question about CPU delidding | NotebookReview

Spartan@HIDevolution Company Representative

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I am gonna try this soon once my new Liquid Ultra arrives but I have a question, after I remove the lid of the CPU, how much LCU do I need to put on the actual CPU? Would it have any thermal paste on it from the factory or just pupt LCU right away?

Do I need to cover it completely the same way as I would cover the actual/entire CPU?

@Mr. Fox

Oh one more question, after removing the IHS, how to remove the glue? I don't think a cotton swap with alcohol would do the job would it? I saw in a video that they advice not to use anything sharp otherwise you might damage the CPU

I just remembered I have Arti Clean (they come in 2 bottles, 1 and 2), is that stuff safe to apply on the PCB then scrape it off with a credit card?

Last edited by a moderator: Feb 27, 2016

Spartan@HIDevolution, Feb 26, 2016

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tgipier Notebook Deity

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Phoenix said: ↑

Oh one more question, after removing the IHS, how to remove the glue? I don't think a cotton swap with alcohol would do the job would it? I saw in a video that they advice not to use anything sharp otherwise you might damage the CPU

Click to expand...

Correct me if I am wrong, but I think you just leave the glue on. That stuff is not going to be easy to clean off.

I cant think of a reason to remove them either.

And yes, there will be some stock paste between the die and IHS. You will have to remove those and replace with CLU.

tgipier, Feb 26, 2016

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Spartan@HIDevolution Company Representative

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tgipier said: ↑

Correct me if I am wrong, but I think you just leave the glue on. That stuff is not going to be easy to clean off.

I cant think of a reason to remove them either.

And yes, there will be some stock paste between the die and IHS. You will have to remove those and replace with CLU.

Click to expand...

I am not sure, in all the videos I've watched, they removed the glue although I am doubting why to remove it in the first place....

Spartan@HIDevolution, Feb 27, 2016

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Spartan@HIDevolution Company Representative

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tgipier said: ↑

Correct me if I am wrong, but I think you just leave the glue on. That stuff is not going to be easy to clean off.

I cant think of a reason to remove them either.

And yes, there will be some stock paste between the die and IHS. You will have to remove those and replace with CLU.

Click to expand...

reply from OC Forums:

Let me give you some practical tips on applying CLU since I've delid a few chips myself.

First of all CLU is pretty agressive stuff and it also conducts electricity. So be very careful when applying.
Apply it when you chip is out of your laptop, not inside your socket. You don't want to accidentally spill anything on vital parts (motherboard etc).

Now back to the CLU. This is, as I said, not your ordinary thermal paste. Its like liquid metal.
On the IHS you can put a really, REALLY tiny drop of CLU. And when I mean tiny, it has to be about 1/5th of what you normally put on a CPU heatshrink (pea method).
The little brush is used to cover the whole surface and CLU spreads out quite annoying at its liquid metal. I really cannot stress enough on how little you should use, you will probably still end up using too much.

Now as for the brush that CLU includes: it's too long and a lot of CLU will be lost inside it.
A practical tip is here to cut off 50% of the brush with scissors; please do this, it will save a lot of otherwise wasted CLU that is stuck between your brush!

Alright moving on to the delid and mounting.
I would remove the glue for one simple reason: You want your chip to be as clean as possible, any residue can negatively impact your temperatures. The glue can attract heat or cause the external heatsink to not be mounted 100% flat. It's fairly simple to remove most of the glue with just some rubbing alcohol, a micro fibre cloth or even a creditcard. It doesn't have to be 100% gone, just get most glue residu off.

You can just mount your CPU with a non-glued heatspreader on top of it, just make sure it doesnt move or slide out of position when mounting.
You can also do a bare-die mount ('naked mount') but I'm not quite sure how this works on a laptop in terms of enough heatsink pressure, mounting issues etc.

Click to expand...

Spartan@HIDevolution, Feb 27, 2016

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I guess you remove it? I dont think its a huge deal, just dont try to scrap all of it off with a razer or something.

tgipier, Feb 27, 2016

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Spartan@HIDevolution, Feb 27, 2016

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