Kaby IHS

[Gunslinger]

Please put some comments here if possible how it works compared to standard one.

 

Silver IHS is abandoned due to very high price and most likely worse results than copper.

 

 

Do you have a copper one available?

[zeropluszero]

I'm mostly interested in the fact that at least this one will be flat, and I dont have to lap my intel one.

[RULE]

I'm mostly interested in the fact that at least this one will be flat, and I dont have to lap my intel one.

I've lapped my Intel ES ihs, i can feel a bit difference like 20mhz ish, and less grase snap.

 

Inviato dal mio SM-A300FU utilizzando Tapatalk

[zeropluszero]

I dont have a spare IHS unfortunately.

[bartx]

I've lapped my Intel ES ihs, i can feel a bit difference like 20mhz ish, and less grase snap.

 

Inviato dal mio SM-A300FU utilizzando Tapatalk

 

According to some reports and my knowledge I think that quality of standard IHS may vary - remember that it's a mass production, so they have some tolerance range in dimmensions, flatness and surface roughness.

 

Not to mention, that spare IHS will for sure help keep all the markings on original IHS intact

[bigblock990]

According to some reports and my knowledge I think that quality of standard IHS may vary - remember that it's a mass production, so they have some tolerance range in dimmensions, flatness and surface roughness.

 

Not to mention, that spare IHS will for sure help keep all the markings on original IHS intact

 

I checked a few retail IHS. I found that depth of pocket on bottom varies from .28-.38mm and flatness varies up too .05mm.

[bartx]

I checked a few retail IHS. I found that depth of pocket on bottom varies from .28-.38mm and flatness varies up too .05mm.

 

Exactly, thanks for that info. In my opinion IHS are stamped from huge copper sheet, just looking how the edges look like. It should be the cheapest process. Probably couple companies make them all the time, as long as they pass quality control and assumed tolerances it's all good.

Edited April 19, 2017 by bartx

[bigblock990]

I believe the IHS are die-cast. If you look around the outside bottom edge some have slight "flashing" which would be from the parting line of the die-cast mold.

[bartx]

In case of casting, they should have some marks from ejector pins and mark in the place, where metal is injected. Like injection moulded parts. I'm not 100% sure, I was designing plastic automotive parts for some time, but never any die casted metal parts.

[bigblock990]

Good points, they could have stripper plate ejection so no pins but yea the gate location would be visible. You are probably correct, they are stamped/forged instead of die-cast.

[Splave]

how about the quality of the metal of the stock IHS could it be a cheaper alloy

[Gigelz]

how about the quality of the metal of the stock IHS could it be a cheaper alloy

if i have an original ihs, i could analyze the alloy at work and compare it to bartek´s alloy

[Splave]

if i have an original ihs, i could analyze the alloy at work and compare it to bartek´s alloy

 

I would be super interested in that

[bartx]

Me too I use Cu ETP, 99,9% pure copper. There is purer alloy CuOF (99,95%), but it's for sure more expensive and I'm almost sure that Intel won't use it in mass production due to price.

[wiLLius]

Stock Intel IHS

wiLLius`s Cinebench - R15 score: 721 cb with a Core i3 7350K

 

 

 

Bartx IHS

wiLLius`s Cinebench - R15 score: 728 cb with a Core i3 7350K

 

Gained 50~ MHz with Bartx IHS. But I'm too inexperienced to know if it's the IHS or my mounting skills.

[Gigelz]

I would be super interested in that

 

Me too I use Cu ETP, 99,9% pure copper. There is purer alloy CuOF (99,95%), but it's for sure more expensive and I'm almost sure that Intel won't use it in mass production due to price.

me too, but unfortunately i don´t have a skylake or kabylake ihs

[subaruwrc]

Stock Intel IHS

wiLLius`s Cinebench - R15 score: 721 cb with a Core i3 7350K

 

 

 

Bartx IHS

wiLLius`s Cinebench - R15 score: 728 cb with a Core i3 7350K

 

Gained 50~ MHz with Bartx IHS. But I'm too inexperienced to know if it's the IHS or my mounting skills.

 

or the plus 0.05v you gave to the cpu.

[wiLLius]

or the plus 0.05v you gave to the cpu.

 

 

Good point, just wanted to help, that's all

[Matt26LFC]

Thinking about getting one of these for my 7350K (will eventually see Ln2) I've already delid the CPU, but I've also removed all the glue from the PCB. Is a shim type thing recommended or just bare PCB OK to use with this IHS?