Removing your Heatspreader


The History of the IHS

Remember back in the day all CPU's had their core exposed? This caused many problems, from novice users cracking their cores, to hardcore overclockers killing their CPU's with unorthodox cooling solutions. The Intel Pentium 3 was the first mainstream CPU to feature the IHS. Following that, was the Pentium 4, which included an IHS. Intel's IHS' were mounted the same way AMD K8 CPU's IHS are, with some epoxy and thermal paste. This caused many problems, because sometimes the IHS would not make proper contact with the core, and temperatures would be abnormally high, hence hindering overclockability. So to tackle the problem Intel started soldering their IHS' to their cores.

(From left to right, AMD K6, Intel PIII Tualatin, Intel Pentium 4 Williamette (s423), Intel Pentium 4 (s478), Intel Pentium 4 (s775), AMD K8 (s754, s939)

Why Remove the IHS?

Since the introduction of the K8 series CPU, AMD has been using epoxy to mount their IHS.  To ensure proper thermal transfer between the core and the IHS, they applied a layer of thermal paste.  Sometimes too much or not enough thermal paste get's applied at the factory, or the IHS isn't seated properly on the core.  This can make your CPU run abnormally warm, hence hindering your overclock.  To solve this, people remove their IHS.  When you remove the IHS, your heatsink makes contact directly with your core vs the heat spreader, instantly having better contact with the CPU.

When you have an IHS, the heatsink doesn't make direct contact.  Instead it's almost like a layered cake.  Theres the CPU core, then some thermal paste.  On top of that is a slab of metal, known as the IHS.  Then some thermal paste on that, then finally the base of the heatsink.  Doesn't sound too good for the cooling of the CPU, does it.

When you remove the IHS, it becomes core, thermal paste, then the base of the heatsink, or direct core contact. 
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Most Recent Comments

02-09-2005, 09:37:24

You can't really blame him - he's just out to make money - not to be popular in the overclocking world.

02-09-2005, 09:45:16

i doubt he's very popular at all, damn im prettier than that. but yea he is a good gamer what do oyu expect with like 8 hours gaming every day.

04-09-2005, 10:02:00

People i know that have seen him at compos say he's like a machine, all the others get drunk, have a laugh etc, whereas he just stays in his room all day gaming.
I wish he would just stop trying to make boards great by sticking LEDs on them lol. Red messes up my blue cathodes. :p
Back OT, how's the project fatty? Got any pics? What compressors you got lined up for this? You using r507 and CO2?
I love ghetto coolers.


04-09-2005, 14:34:13

Bloody christ, anyone not living in Britains weather who spends more than 8 hours a day inside needs to be shot, there is more to life than computers!(don't kill me!)

That and he'll be buggered if anything happens to his hands, I give it about a month before we read he has insured his hands for a million on The Inquirer!

04-09-2005, 14:38:21

Agreed...if I felt obliged to spend that long at the computer to stay on top of my game, I`d get very bored, very quick

On Topic...Fattys away for a bit, so detailed info on his cascade will have to wait :)

04-09-2005, 14:49:16


That and he'll be buggered if anything happens to his hands, I give it about a month before we read he has insured his hands for a million on The Inquirer!

MM's got a pair of pliers and a hammer, now where does he live, America? pfft screw that.

30-09-2005, 21:14:59

Good luck with the cascade. Why dont you guys write to him and explain how to make a propper OC'ing system and remind him barbie was always more popular :P

01-10-2005, 03:13:20

Back on topic small hiccup with my cascade while I was away the units containing my 1hp compressors got removed from sight so now I need some new ones I have my fridge mates keeping an eye out for me so soon I hope

off topic the wendy board is pretty poo I need to re install my new dfi

01-10-2005, 05:34:26

Go Green mate....Epox is the way ;)

01-10-2005, 10:34:36

what did i tell you fatty mate? your choice is simple hardcore dfi or a mean green overclocking machine epox.

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