Innovation Cooling's Diamond 7 TIM test results

[tastymannatees]

Remember that FuZions are "convex" which will force out TIM.

I assume the convex feature is a product of the casting? This was a problem I had when I was trying to source boilers for our thermosyphon I could not get a sample that was not convex so I changed manufacturing methods rather than go to an extra sanding process.

If what Intel says is true that you need 43lbs to make the IHS "flat" this feature would tend to minimize edge contact leaving a contact spot in the center of the IHS instead. This on an initial basis with the light contact in littleowl's post (243) with the pressure film fuzion test, does not seem to be happening - high contact at the edges and much less contact on center with a biased pressure on the right side.

If the convex design is one of intent, you have to help me here as I am not seeing the advantage

[SiGfever]

I assume the convex feature is a product of the casting? This was a problem I had when I was trying to source boilers for our thermosyphon I could not get a sample that was not convex so I changed manufacturing methods rather than go to an extra sanding process.

If what Intel says is true that you need 43lbs to make the IHS "flat" this feature would tend to minimize edge contact leaving a contact spot in the center of the IHS instead. This on an initial basis with the light contact in littleowl's post (243) with the pressure film fuzion test, does not seem to be happening - high contact at the edges and much less contact on center with a biased pressure on the right side.

If the convex design is one of intent, you have to help me here as I am not seeing the advantage

Because a lot of IHS are bowed they started making the better waterblocks convex to overcome this.

[tastymannatees]

Because a lot of IHS are concave they started making the better waterblocks convex to overcome this.

It just does not make sense to me, well mechanically anyway. If you are not on center you have a problem, if IHS and sink have different diameters, sizes, depths not to mention what happens between the IHS and die....I'll have to pick up a couple and run a dial indicator on them along with some pressure film to see what's going on. Maybe I am getting a little thick in my old age.

[SiGfever]

It just does not make sense to me, well mechanically anyway. If you are not on center you have a problem, if IHS and sink have different diameters, sizes, depths not to mention what happens between the IHS and die....I'll have to pick up a couple and run a dial indicator on them along with some pressure film to see what's going on. Maybe I am getting a little thick in my old age.

Here is some good reading...

http://www.xtremesystems.org/forums/...&highlight=ihs

http://www.xtremesystems.org/forums/...&highlight=ihs

[littleowl]

Here is some good reading...

http://www.xtremesystems.org/forums/...&highlight=ihs

http://www.xtremesystems.org/forums/...&highlight=ihs

but the fuzion is not convex untill you put in a bigger O ring!?

[SiGfever]

but the fuzion is not convex untill you put in a bigger O ring!?

Yes it has a slight convex shape, the o-ring just bows it more.

[littleowl]

Yes it has a slight convex shape, the o-ring just bows it more.

really? I was under the impreasion that the fuzion was flat unless you put the O ring to convex it. I will have to do some looking at mine when I get the time to do the next set of tests.

[tastymannatees]

Here is some good reading...

http://www.xtremesystems.org/forums/...&highlight=ihs

http://www.xtremesystems.org/forums/...&highlight=ihs

Ok, I have the concept down, essentially you are putting the same amount of force, overall increasing the psi in a smaller area over the die. It is quite clear in the grease pattern a single broad line down the middle with a thicker coat on either side. Looks like it would be tricky to get it right.

The paste has hit the bondline as you can see the IHS through it.


Looking at Martijn's post with the stock Intel cooler it looks like to me that intel does the same type of thing. Smaller available contact area higher pressure. I think that locating the contact area inside of the IHS edge is key to capitalizing on performance. The top will flex, the edges will not as much due to the reinforcing bend on the edges.

I bet you could make a better water block by just mimicking Intel's base contact

It will be interesting to see what the pressure film kicks out of all this.