Why do CPU's have IHS?

[Allshevski]

Hi,

I've been interested in CPU delidding for quite some time now and started thinking - why to put a lid on them anyway? That's an additional piece of metal and layer of thermal compound between the die itself and your cooler. Only useful thing about it is that you can be sure not to apply too much of the thermal paste and cover entire PCB and it's overall easier. And can't crack the die as easily.

[Enderman]

safety, the metal cover is a lot less delicate than a tiny lump of silicon

also it helps spread out the pressure from the cooler so not all the preddure is on the die, but also on the surrounding PCB

less chance of damaging the CPU from non-careful people

[manikyath]

because theres far less people that encounter a scenario where an IHS is an issue, than theres people that screw up like paul describes here:

 

 

[pokechat8978]

Paul's Hardware explained it in his CPU collection video. (I think)

It's there so people wouldn't break the CPU die trying to put a cooler on it, and it spreads out the heat.

[Allshevski]

2 minutes ago, Enderman said:

safety, the metal cover is a lot less delicate than a tiny lump of silicon

also it helps spread out the pressure from the cooler so not all the preddure is on the die, but also on the surrounding PCB

less chance of damaging the CPU from non-careful people

Thank you!

Just now, manikyath said:

because theres far less people that encounter a scenario where an IHS is an issue, than theres people that screw up like paul describes here:

I watched that video and this is where this topic came from.