Here is what the tualatin core looks like.

[ol' man]

And a simple explaination how the IHS comes off.

http://www.shackspace.com/~chemhaqr@shackmail.com/stuff/cpu5.jpg

When you do this you want to keep the blade flat. If it is not flat you will possibly cut some traces and ruin the chip. Start at one corner as I have shown below and simply push in but not too far cause if you do you may hit the core and that would not be good. Do this at every corner and with this motion kinda push it in to the middle of the IHS. After this is done at every corner then simply lift off the IHS without turning it cause if you turn it too far in one direction it may hit the core and chip a corner. I think my experience in the end has been that it reduces load temps by 2~4 deg. C depending on vcore. My personal advice after using 4 of these chips is that you want to have Copper next to the small core as it's thermal conducting abilities are much better than Aluminum. These small cores are pushing alot of watts when OC'd for their size and you really should have copper next to the core.

[[OC]_SR20DE]

Nice one, Ol'man :) :p That's good pic tutorial for the people. nice job =)

[muddocktor]

How does the size of the slug compare to a duron. It looks a little larger to me in the pic than what I was expecting.

[Yodums]

Question number 1298490238432 ....

Is that Razor blade pulling on that plate or sliding on the core to remove it?

[funnyperson1]

Originally posted by Yodums
Question number 1298490238432 ....

Is that Razor blade pulling on that plate or sliding on the core to remove it?
it appears to be slicing through the paste on the heatpalte...

[Yodums]

Originally posted by funnyperson1

it appears to be slicing through the paste on the heatpalte...

Looks interesting thats what I was thinking..

[ol' man]

It is slicing through the glue. Like I said it came off in about 30 sec no kidding. It was way too easy. I don't use a shim cause the core is closer to the base and it is hard getting a shim made that small. I am just real careful. Should be fine.

[Yodums]

Originally posted by ol' man
It is slicing through the glue. Like I said it came off in about 30 sec no kidding. It was way too easy. I don't use a shim cause the core is closer to the base and it is hard getting a shim made that small. I am just real careful. Should be fine.

That's a really cool method :)

[Dtown]

Nice reverse engineering! And cool pic! Sweet! :D

[zoopa_man]

Very cool. My question is do you see any way to get a very thin thermal probe under that IHS to the core or is it tucked on their tight ? I have a compu nurse or enermax style thermal probe. we all know the ones... with the thin orangeish thermal probe that connects to a LED temp readout. Having ripped a few of these chips apart I was wondering if you could give me some insight as to how close the IHS sits to the CPU and if it would be possible to get a thermal probe under there with out totally removing the chips protective IHS ??

[Pecos]

Hey, that's the same way I got mine off!

There is NO room between the IHS and the chip itself. One of the corners of my celly-t didn't have enough gap to get razorblade through. You would have to remove the IHS for the thermal probe to get an accurate reading.

[ol' man]

I have done this to 4 chips now and none of them have been difficult to get the blade under. I have had two malays and two Philli chips!

[Pecos]

Originally posted by ol' man
I have done this to 4 chips now and none of them have been difficult to get the blade under. I have had two malays and two Philli chips!

It was just one corner of my current one. I had to move the razor from the two opposing corners to get under that one. Wasn't all that much extra work.

We'll see how the next one is. Hope that I should have that one tomorrow or Friday.

I will say that I was surprised at the weight of the IHS! It's a good chunk of metal.

[AmbientFiction]

Might try putting it in the freezer for a bit and making the glue/apox harden so it would crack and be less trouble to get off.

It would be done just like modding a vid card.

[AntmanMike]

I did that to 2 Pentium 4's a couple of months ago. Chipped the core on one, scratched the other pretty bad. I didnt use a razor, i used a VERY thin knife (not exacto, BTW)

[Intraveinous]

Are there any problems getting a heatsink to snug up against the core after the IHS is removed? I remember taking the IHS off of K6 chips and you had to bend the clip slightly so that the heatsink would sit a little lower on the chip and make good contact. Any issue like that here? Also, any issue getting a heatsink to sit correctly on a chip that still has the IHS? Is it much taller than one without?
My celly-t 1.2 and ST6-R should be here today, along with my brand new Glaciator II. Haven't decided whether or not to remove the IHS...
Thanks for the info and tutorial though...
Peace
John

[The Doors]

Hi John,
considering the weight of the Glaciator II, for me is better to go with the IHS, it's more safe, and you'll get the best fitting on the Cpu ;)

[Intraveinous]

Originally posted by The Doors
Hi John,
considering the weight of the Glaciator II, for me is better to go with the IHS, it's more safe, and you'll get the best fitting on the Cpu ;)

Not a bad plan... I hadn't thought of that yet... Plus, like ol' man said, hard to find a shim that'll work on these new cores...
Thanks for the advice!
Peace
john

[Pinky]

Originally posted by The Doors
Hi John,
considering the weight of the Glaciator II, for me is better to go with the IHS, it's more safe, and you'll get the best fitting on the Cpu ;)

I agree, I would be worried now about removing it and crushing the core... I tried this and it didn't work for me, at all, even with new sharp razors, proper pressure and angle, etc etc etc... it's only for those willing to take added risk of destroying their processor.

[tainice]

certainly agree, no money, so have to pay it save..:D maybe i will do it on next c-t chip, but who knows?

[Pecos]

Originally posted by Pinky


I agree, I would be worried now about removing it and crushing the core... I tried this and it didn't work for me, at all, even with new sharp razors, proper pressure and angle, etc etc etc... it's only for those willing to take added risk of destroying their processor.

Ah... You worry too much, right Ol'man!?! ;)

[MadMan007]

I am glad to see that Ed mentioned that ol' man has been doing the IHS removal for months that the Frenchies got front-page praise for. Go ol' man, it's your b-day!! :)

[ol' man]

More IHS removal pics. Here is a cel-t 1.0a and a 1.2GHz.

[POL-tec2002]

nice, when you take it off you cant put it back on right? and is that a heat collector. Is it better to keep it on or off?

[Rio71]

lol, your the man... DANKE

[ol' man]

You can put the IHS back on if needed. Its function in my mind is to allow the thermal shutdown feature to work if the HS is not touching. I fried a IHSless chip cause the HS was not touching the chip when I fired it up at 1600MHz and 1.825v. Yep just the same as a Athy XP.

[takiwa]

ol' man, what is the stuff underneath the IHS? I ask because I am wondering if there would be any benifit from removing the IHS, cleaning that crap offa the bottom, then applying some better thermal grease and reinstalling it to use a s better base for my heatsink? would this help any, do you think, or would I be wasting my time?

[ol' man]

I did that and applied antec thermal paste and it still gave 2 deg. C higher temps. The temp reduction from removing the IHS is minimal but does help.

[takiwa]

ok...thanks. I think I'm gonna remove mine, hope I get it right...

[ol' man]

Yikes:(

I hope it goes well for you. It doesn't for many here though. I am the only one I trust to do it.

[tainice]

Originally posted by ol' man
Yikes:(

I hope it goes well for you. It doesn't for many here though. I am the only one I trust to do it.

well, i cannot get a proper grip, and the it is simply too tough for me to cut through the past!! it looks like i have to give up on idea of removing the ish.. i don't want to ruin a chip that can do 1615 at 1.525v:)