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First post, by iVirtualZero

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I’m thinking about delidding my Tualatins. Has anyone dellided them? What tool shall i use? And is it worth the effort?

Reply 1 of 13, by Marentis

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It depends on what you want to do with it. I'm assuming this is about overclocking?
In that case it would probably be a good idea to know how hot your CPUs run currently to see if it might
give you any benefit in that regard as there's always a risk in doing so.

Here another overclocker has delidded his Tualatin even with pictures showing the process:
https://forums.overclockers.com.au/threads/pe … -delid.1136735/

Reply 2 of 13, by Socket3

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Is there any point in delidding a tualatin? They don't really generate much heat... As for overclocking, as far as I can understand max clocks are limited by the manufacturing process and architecture, not by thermals or power. Please correct me if I'm wrong.

Last edited by Socket3 on 2020-08-08, 14:26. Edited 1 time in total.

Reply 3 of 13, by Marentis

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To be fair, temperature *can* limit your overclocking capacities if the CPU either gets damaged, unstable or - as more modern CPUs do - starts throttling to prevent damage.
Then again, I wouldn't overclock older systems because that puts extra stress on components with very limited supply and modern systems are very effective
at handling their own clock rates. But each to their own and if the OP loves overclocking, so be it 😀.

Reply 4 of 13, by The Serpent Rider

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As for overclocking, as far as I can understand max clocks are limited by the manufacturing process and architecture, not by thermals or power.

Quality of VRM, voltage and cooling improve overclocking. Cooling below zero Celsius can drastically improve overclocking potential.

Then again, I wouldn't overclock older systems because that puts extra stress on components

Overclocking without voltage increase rarely puts any significant stress on hardware.

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Reply 5 of 13, by dr_st

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Socket3 wrote on 2020-08-08, 11:29:

Is there any point in delidding a tualatin?

Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows-what.

Take it from the masters:
Re: Delidding an SL7CH CPU? (socket 478 P4 EE)

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Reply 6 of 13, by Socket3

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dr_st wrote on 2020-08-08, 19:22:
Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows- […]
Show full quote
Socket3 wrote on 2020-08-08, 11:29:

Is there any point in delidding a tualatin?

Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows-what.

Take it from the masters:
Re: Delidding an SL7CH CPU? (socket 478 P4 EE)

I can't believe he delidded a Gallatin. And worse, it was soldered so now it's dead. I'd give my left nut for a working P4 EE, either socket 478 or LGA775. P4 EE are pretty much unicorns in my neck of the woods, and both price and shipping prohibit me from purchasing one... It pains me when I see someone destroy one of these babies.

Reply 7 of 13, by cyclone3d

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Socket3 wrote on 2020-08-10, 15:03:
dr_st wrote on 2020-08-08, 19:22:
Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows- […]
Show full quote
Socket3 wrote on 2020-08-08, 11:29:

Is there any point in delidding a tualatin?

Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows-what.

Take it from the masters:
Re: Delidding an SL7CH CPU? (socket 478 P4 EE)

I can't believe he delidded a Gallatin. And worse, it was soldered so now it's dead. I'd give my left nut for a working P4 EE, either socket 478 or LGA775. P4 EE are pretty much unicorns in my neck of the woods, and both price and shipping prohibit me from purchasing one... It pains me when I see someone destroy one of these babies.

I got my Gallatin EE CPUs for a really good price. Just have to wait and watch until they pop up for a good price. It doesn't happen very often. The normal prices I see them going for on eBay is just insane.

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Reply 8 of 13, by Socket3

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cyclone3d wrote on 2020-08-10, 15:17:
Socket3 wrote on 2020-08-10, 15:03:
dr_st wrote on 2020-08-08, 19:22:

Like everything, the point is to destroy working hardware (the rarer - the better) for the purposes of "testing" only-God-knows-what.

Take it from the masters:
Re: Delidding an SL7CH CPU? (socket 478 P4 EE)

I can't believe he delidded a Gallatin. And worse, it was soldered so now it's dead. I'd give my left nut for a working P4 EE, either socket 478 or LGA775. P4 EE are pretty much unicorns in my neck of the woods, and both price and shipping prohibit me from purchasing one... It pains me when I see someone destroy one of these babies.

I got my Gallatin EE CPUs for a really good price. Just have to wait and watch until they pop up for a good price. It doesn't happen very often. The normal prices I see them going for on eBay is just insane.

They do come up once in a while, but all I've come across so far have been from the US, witch means insane shipping costs.

Reply 9 of 13, by computerguy08

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I accidentally delidded my Northwood Celeron when I tried to remove the cooler form a Socket 478 laptop. There was no room to wiggle the cooler, so I was forced to pry it out. The CPU stayed in the socket, while the IHS was stuck on the cooler. Thankfully, it used thermal paste under the IHS instead of solder.

As for the topic itself, delidding any CPU is a really stupid idea IMHO. If you really want to overclock those old CPUs, you're better off using watercooling (or even LN). The benefits of replacing the thermal interface under the IHS are simply not worth it over the risk of permanently damaging the CPU.

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Reply 10 of 13, by The Serpent Rider

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You can't damage Tualatin by simple delidding and changing thermal interface between IHS and crystal after 20 years also won't hurt...

What tool shall i use?

Basic razors should suffice. Just carefully and slowly cut glue between CPU PCB and IHS. You probably would want to add silicon pads similar to Athlon CPUs after that.

Example: Re: Socket 939 FX-60/Opteron 185 cooler recommendation for 110W TDP

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Reply 11 of 13, by RoberMC

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The thermal interface between the die and the heatspreader is usually less efficient than toothpaste in this 20 years old CPUs. That may affect their longevity, even at stock speeds.

I usually delid the CPUs i care the most, replace the old paste with the higher quality interface i consider suitable (Liquid Metal or traditional high performance paste), and then reasemble the CPU just like it was before, using same color adhesive and stuff.

I try and overclock them just for fun and see how far they go, but i use the stock clocks for daily use. There is no point in use an overclocked PIII when you can build a more powerful machine for peanuts if you need it.

An advice to anybody who want to remove a heatspreader, use a VERY sharp and thin razor blade, knifes and cutters are not as sharp as i would consider suitable. the sharper and thinner the easier the work, the easier the work = less probability to damage the CPU.

Reply 12 of 13, by The Serpent Rider

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There is no point in use an overclocked PIII

PIII platform is easiest choice to assemble a powerful retromachine with ISA slot and overclocking won't hurt for highres DOS gaming.

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Reply 13 of 13, by slivercr

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I have delidded Tualatins. It allows them to use any CuMine heatsink without bending any bracket.
P3-s 1400 may be uncommon, but Tualatin as a family is definitely NOT rare.

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