Intel IHS Removal

[n00b 0f l337]

Anyone ever thought to put there chip in a mill or cnc and perfectly remove the ihs without hitting the core? Expensive probably, but could give a great oc!

[ZX7891]

I know a guy that removed the IHS on a celeron D for lga775. CrazyXP1700 did it

[afireinside]

You mean grind the IHS down until you hit the epoxy? Take a look at AMD IHS, unless it had REALLLLLL bad factory contact you gain a few C and maybe 50mhz give or take a bit, bar having horrid IHS to HSF contact like I always do. Not worth it.

[n00b 0f l337]

Right, but amd does it, maybe we should try it. Because cutting the epoxy always ends up in a dead chip. Why not just mill off the top!

[CrazyXP1700]

it wasn't an LGA775 ZX... it was a Celly D 478... none the less it was soldered to the IHS...
basically i cut around the epoxy with a real thin razor blade... basically removing the black epoxy around it... that gave it a little play...

after that i took the cpu... put in in the mobo without the heatsink... basically ran it till she was nice and toasty... then i took a thin flat screwdriver... and stuck it in a corner... between the IHS and the PCB... and GENTLY inserted it... most screwdrivers progressivly get thicker (kinda like a V shape from the side...) the farther you insert them the farther the screwdriver... the farther the IHS and PCB get away from each other (it did make a noise when the solder seporate)... BUT dont sporate them any more than 1mm apart at a time.. put the CPU back in the board... fired it up to get hot again... do another corner...
basically i did that until i got all 4 corners raised up... then i put it back in... warmed it up real good and raised off the PCB... and simply twisted it off...

basically if it's not warmed up enough... you'll crack the die... dead CPU...
but if you get it off... all you've got to do is clear off the solder... that stuff you can scrape off with your fingernail if you'd like... till you get down to the die... then just make sure you get it all off

but yeah... i got it off my celly D... i've been meaning to take pics... just havn't got around to it...

[n00b 0f l337]

Yeah I know you can pop the 478.s But I have not seen a naked lga775.

[CrazyXP1700]

i tried this same thing with my P4 520 awhile back... basically the IHS of my Celly D is secured the EXACT same way... with solder... soooooo... i guess this same method would work for the LGA775's... it's just i screwed up my 520

i mean i know what i did wrong with my 520 about 8 months ago... when i put the screwdriver inbetween the PCB and the IHS... i thought it was just epoxied on... not soldered... epoxy pops off easily normally... solder on the other hand is MUCH harder...

basically i had the IHS and PCB about 4mm apart and i heard the DIE crack...

maybe if i can get my hands on another 775 i bet $100 i can get the IHS off without cracking the die

[afireinside]

Wait wouldn't the lga bracket lock thing be higher than the CPU die with no IHS?

[n00b 0f l337]

Yeah. You'd have to pad it.

[afireinside]

Pad what?

[.sentinel]

Yould have to put a shim like thing on the processor so when the lock bracket type thing comes done it would lock not just little it slid uselessly in it.

[harleybro]

I think it would make an improvement but not a worthy one for the risk. I know my FX-57 I pretty much got no omprovement when removing it. Then again it was cold bugged and I was using LN2 so was able to hit optimum temps.

[n00b 0f l337]

I think it may be almost worth the experiment. You just gotta have a lathe take it off insanely slowly and very little at a time.

[ingentingmendeg]

Wait wouldn't the lga bracket lock thing be higher than the CPU die with no IHS?

huh?

[ilkkahy]

Ive had a video where they straighten p4 ihs with cnc-mill. It dropped temps few degrees if i remember correctly. I think mill would suit better for the job than lathe.

[IYP]

im sorry, but thats absolouty retarded....

[lawrywild]

huh?

if the lga775 locking clip is higher than the core, how the hell are you going to mount a heatsink on it.. that's what he means...

[afireinside]

im sorry, but thats absolouty retarded....

Look who posted it...

[craig588]

I think it may be almost worth the experiment. You just gotta have a lathe take it off insanely slowly and very little at a time.

Never lathe a CPU. No good can come of it.

[G H Z]

I use a die grinder before I'd use a lathe or mill

[bestmancajun]

The heat generated by grinding or CNC'ing could be a problem. It would hard to find a way to mount it for precision cutting without causing damage.

[MeltedDuron]

LGA775 IHS removal is no problem, just cut the RTV sealant stuff under the edges of the ihs and hold a small torch on the spreader for a few seconds while applying a light twisting pressure to the IHS and next thing you have a naked chip! Also, the solder that intel use to hold the ihs onto the core melts at around 98*c so the heat from the torch won't cause any damage if you aren't reckless.

[2fink]

LGA775 IHS removal is no problem, just cut the RTV sealant stuff under the edges of the ihs and hold a small torch on the spreader for a few seconds while applying a light twisting pressure to the IHS and next thing you have a naked chip! Also, the solder that intel use to hold the ihs onto the core melts at around 98*c so the heat from the torch won't cause any damage if you aren't reckless.

wasnt it about 70°C?? thought someone (bbmods??) postet it some time ago over at hwa)

[MeltedDuron]

maybe it was I just remember it being below 100, which a non-running chip can take no problem anyone wanna send me a dead conroe?

[2fink]

maybe it was I just remember it being below 100, which a non-running chip can take no problem anyone wanna send me a dead conroe?

sure, even 100°C shouldnt be a problem for the cpu
dead conroe... try it with a working one! no risk - no fun!