Innovation Cooling's Diamond 7 TIM test results

[tastymannatees]

Here's a lapp and edge job, little disappointed he did not get before numbers

http://www.ocforums.com/showthread.php?t=557899

[123bob]

Farm-09 Q6600 on an IP35 Pro. "Edge lap" before and after. All with D7 paste.

Refer also to my posts #202 and #417 for more info on this same machine. I'll try to provide the full story here, but who knows......it's been a long week already!

I'll hold my temp data until the end of the post so it's all together.

Here was the original pressure test films from before, out of post #417. It was pretty clear that this quad had the "island, moat, high edge" that most quad IHS's show.



I blued up the CPU with "poor man's" Dykem blue, a blue sharpy marker. (Dykem blue is something gunsmiths use to check contacts. SiG and SS probably know about this...)



I took a few flat strokes on the 1/2 solid copper bar I use to lap. (This thing is dead flat as shown by using a high grade machinists rule, and holding it up to bright light.) I did this to see the intial profile better. The same rule on the CPU showed that it indeed had the "island, moat, edge" profile, as shown by one of Tasty's diagrams. Where the blue is gone is where the high spots are.



So, I went about figuring out how best to take down the edges since I had the high spot profile. I re-blued the thing to get another baseline and took the CPU by the edges with a slight tilt to the copper bar. I worked a few strokes at a time and rotated the CPU to the next edge. The tricky part was getting it even. I actually think it's easier to lap flat than to try this technique. But hey, this is science, right? Here is a pic after the rough edge lap. Note that it has the reverse of blue color left on it than the first profile pic.



Of course, no self respecting lap job can go without finer grits and polishing. A good lap job is one where the camera takes a picture of itself, out of it's own vanity... I had to try it, so I used D7 as the polish. (What the heck, I already tasted the stuff, it tasted like it would be good polish... ) It worked quite well...as you would expect out of diamond compound.



So, the next test was to see the difference in the pressure test. Comments after the pic.

I thought it was a curious result. I may break it down and try it again. I don't know what's up with the diagonal white line down the left of the middle, or the white spot in the lower center. Does the film perhaps have a dead spot in it? It definitely has a bias to the front of the CPU. I'm also curious now what a flat lap would show.

Looking with the machinist ruler, at a bright light, the TRUE is slightly convex, and this CPU is now a bit convex. I would have expected a solid patch in the middle. I'm doubting now that the TRUE spring screws put consistent pressure all the way around the mount. The order that I've put in the screws has been the same in all testing on this machine. Lower left first, then upper right, then lower right, then upper left. Maybe this result makes sense with that pattern.

OK, now to temps.

Before Lap - D7 paste.
Ambient 20.3
CT idle 24,26,24,24
CT load 40,44,38,40

After Lap - D7 paste.
Ambient 17.5
CT idle 21,22,19,19
CT load 37,40,35,36

Ambient delta of 2.8 degrees C. Picked up some improvement on idle, picked up only a little improvement at load. I'm not sure what to make of this other than to try another film on this setup, then lap flat, film it again and re-run temps. Tasty, let me know your thoughts. I would not be against lapping both sides on this to see what happens....

Another thought. I'm beginning to wonder how linear the CPU temp diodes, and/or Coretemp is performing. I will attempt to better control my ambient variation when I take test points.

Regards,
Bob

[Emerica]

Farm-09 Q6600 on an IP35 Pro. "Edge lap" before and after. All with D7 paste.

Refer also to my posts #202 and #417 for more info on this same machine. I'll try to provide the full story here, but who knows......it's been a long week already!

I'll hold my temp data until the end of the post so it's all together.

Here was the original pressure test films from before, out of post #417. It was pretty clear that this quad had the "island, moat, high edge" that most quad IHS's show.



I blued up the CPU with "poor man's" Dykem blue, a blue sharpy marker. (Dykem blue is something gunsmiths use to check contacts. SiG and SS probably know about this...)



I took a few flat strokes on the 1/2 solid copper bar I use to lap. (This thing is dead flat as shown by using a high grade machinists rule, and holding it up to bright light.) I did this to see the intial profile better. The same rule on the CPU showed that it indeed had the "island, moat, edge" profile, as shown by one of Tasty's diagrams. Where the blue is gone is where the high spots are.



So, I went about figuring out how best to take down the edges since I had the high spot profile. I re-blued the thing to get another baseline and took the CPU by the edges with a slight tilt to the copper bar. I worked a few strokes at a time and rotated the CPU to the next edge. The tricky part was getting it even. I actually think it's easier to lap flat than to try this technique. But hey, this is science, right? Here is a pic after the rough edge lap. Note that it has the reverse of blue color left on it than the first profile pic.



Of course, no self respecting lap job can go without finer grits and polishing. A good lap job is one where the camera takes a picture of itself, out of it's own vanity... I had to try it, so I used D7 as the polish. (What the heck, I already tasted the stuff, it tasted like it would be good polish... ) It worked quite well...as you would expect out of diamond compound.



So, the next test was to see the difference in the pressure test. Comments after the pic.

I thought it was a curious result. I may break it down and try it again. I don't know what's up with the diagonal white line down the left of the middle, or the white spot in the lower center. Does the film perhaps have a dead spot in it? It definitely has a bias to the front of the CPU. I'm also curious now what a flat lap would show.

Looking with the machinist ruler, at a bright light, the TRUE is slightly convex, and this CPU is now a bit convex. I would have expected a solid patch in the middle. I'm doubting now that the TRUE spring screws put consistent pressure all the way around the mount. The order that I've put in the screws has been the same in all testing on this machine. Lower left first, then upper right, then lower right, then upper left. Maybe this result makes sense with that pattern.

OK, now to temps.

Before Lap - D7 paste.
Ambient 20.3
CT idle 24,26,24,24
CT load 40,44,38,40

After Lap - D7 paste.
Ambient 17.5
CT idle 21,22,19,19
CT load 37,40,35,36

Ambient delta of 2.8 degrees C. Picked up some improvement on idle, picked up only a little improvement at load. I'm not sure what to make of this other than to try another film on this setup, then lap flat, film it again and re-run temps. Tasty, let me know your thoughts. I would not be against lapping both sides on this to see what happens....

Another thought. I'm beginning to wonder how linear the CPU temp diodes, and/or Coretemp is performing. I will attempt to better control my ambient variation when I take test points.

Regards,
Bob

Wow Bob, real nice results with that lap. Some people never notice a difference in lapping, but you definitely did.

[SiGfever]

Farm-09 Q6600 on an IP35 Pro. "Edge lap" before and after. All with D7 paste.

Refer also to my posts #202 and #417 for more info on this same machine. I'll try to provide the full story here, but who knows......it's been a long week already!

I'll hold my temp data until the end of the post so it's all together.

Here was the original pressure test films from before, out of post #417. It was pretty clear that this quad had the "island, moat, high edge" that most quad IHS's show.


I blued up the CPU with "poor man's" Dykem blue, a blue sharpy marker. (Dykem blue is something gunsmiths use to check contacts. SiG and SS probably know about this...)


I took a few flat strokes on the 1/2 solid copper bar I use to lap. (This thing is dead flat as shown by using a high grade machinists rule, and holding it up to bright light.) I did this to see the intial profile better. The same rule on the CPU showed that it indeed had the "island, moat, edge" profile, as shown by one of Tasty's diagrams. Where the blue is gone is where the high spots are.


So, I went about figuring out how best to take down the edges since I had the high spot profile. I re-blued the thing to get another baseline and took the CPU by the edges with a slight tilt to the copper bar. I worked a few strokes at a time and rotated the CPU to the next edge. The tricky part was getting it even. I actually think it's easier to lap flat than to try this technique. But hey, this is science, right? Here is a pic after the rough edge lap. Note that it has the reverse of blue color left on it than the first profile pic.


Of course, no self respecting lap job can go without finer grits and polishing. A good lap job is one where the camera takes a picture of itself, out of it's own vanity... I had to try it, so I used D7 as the polish. (What the heck, I already tasted the stuff, it tasted like it would be good polish... ) It worked quite well...as you would expect out of diamond compound.



So, the next test was to see the difference in the pressure test. Comments after the pic.

I thought it was a curious result. I may break it down and try it again. I don't know what's up with the diagonal white line down the left of the middle, or the white spot in the lower center. Does the film perhaps have a dead spot in it? It definitely has a bias to the front of the CPU. I'm also curious now what a flat lap would show.

Looking with the machinist ruler, at a bright light, the TRUE is slightly convex, and this CPU is now a bit convex. I would have expected a solid patch in the middle. I'm doubting now that the TRUE spring screws put consistent pressure all the way around the mount. The order that I've put in the screws has been the same in all testing on this machine. Lower left first, then upper right, then lower right, then upper left. Maybe this result makes sense with that pattern.

OK, now to temps.

Before Lap - D7 paste.
Ambient 20.3
CT idle 24,26,24,24
CT load 40,44,38,40

After Lap - D7 paste.
Ambient 17.5
CT idle 21,22,19,19
CT load 37,40,35,36

Ambient delta of 2.8 degrees C. Picked up some improvement on idle, picked up only a little improvement at load. I'm not sure what to make of this other than to try another film on this setup, then lap flat, film it again and re-run temps. Tasty, let me know your thoughts. I would not be against lapping both sides on this to see what happens....

Another thought. I'm beginning to wonder how linear the CPU temp diodes, and/or Coretemp is performing. I will attempt to better control my ambient variation when I take test points.

Regards,
Bob

So you kind of partial to the little stickers on that camera?

[123bob]

So you kind of partial to the little stickers on that camera?

I just KNEW someone would pick that up...... I bought the camera about 7 years ago, and just never got around to taking the stickers off....The important part is did you notice the Carl Zeiss lens on that thing? Really sweet...

So, how am I doing Doc? I haven't bought a new machine in about 1.5 months now. I'm starting to get the itch.... The X3350 was nice, but I need those Nehalems to start showing up...

Regards,
Bob

[123bob]

Farm-07 Pressure test results

(Sue me, I'm triple posting. I'll quadruple post after the next one. It's the only way I can keep my data straight.... )

This machine is a Q6600 running on an EVGA 680i. It has a Zalman 9700 for cooling. Refer to post #167 for thermals. It had good results with D7 vs Shin Etsu G751.

Broke down machine for pressure test so I may as well add the D7 spread pics first. Here they are



Not too bad looking. This mount performed very well.

OK, here's the pressure test.....

I was off a bit on placement and missed the very top edge.

About all i can say is WHAT WHIMPY MOUNT PRESSURE!! But you know, it performed well against the Shin......

Regards,
Bob

[123bob]

Farm-09 2nd Post Edge Lap Pressure test.

Farm-09 is all over this thread. It's a Q6600 on an IP35 Pro with a TRUE. It was "edge lapped". Here's pressure test number two.

Note - the important difference in this pressure test is the order I put the screws in on the TRUE. I went Upper Left, Lower Right, Upper Right, Lower Left. This is reverse of the first test. The result proved interesting......

First, edge lapped D7 from breakdown...EDIT: Note that this spread pattern is from the original screw order of Lower Left, Upper Right, Lower Right, Upper Left.



We can see a bias toward the top, reasonable spread with heavy contact in the middle.

Here's the 2nd pressure test.

Wow, quite different from the first. More in-line with what I would expect based on the lap profile and the TRUE screw mount order. Note the bias is toward the top on this, which makes sense to me given the screw order. This has great contact in the middle, without the puzzling diagonal white line that test #1 had. Might have to run one more on this if I have spare film.

Well, it's late and I'll let the pics speak for themselves.

Regards,
Bob

EDIT: Ah cr*p. I mispelled "LAP" in the last pic. It's permanent sharpy, so it will have to remain.....

[SiGfever]

I just KNEW someone would pick that up...... I bought the camera about 7 years ago, and just never got around to taking the stickers off....The important part is did you notice the Carl Zeiss lens on that thing? Really sweet...

So, how am I doing Doc? I haven't bought a new machine in about 1.5 months now. I'm starting to get the itch.... The X3350 was nice, but I need those Nehalems to start showing up...

Regards,
Bob

Well since we know that you are waiting on Nehalem to arrive and you have been doing such great work with all this testing you are right on track to either a nervous breakdown (quad jonesing) or will discover the true meaning of contact pressure versus the every changing Intel IHS.

Oh, I just pulled the stickers off my wife's little Nikon (purchased two years ago) and when she finds out that I did not remove the goo she will be pissed.

I really like the Carl Zeiss lenses.

[tastymannatees]

Well since we know that you are waiting on Nehalem to arrive and you have been doing such great work with all this testing you are right on track to either a nervous breakdown (quad jonesing) or will discover the true meaning of contact pressure versus the every changing Intel IHS.

Oh, I just pulled the stickers off my wife's little Nikon (purchased two years ago) and when she finds out that I did not remove the goo she will be pissed.

I really like the Carl Zeiss lenses.

It's kinda like ever diminishing concentric circles of Chaos theory. I may be signing up for therapy myself soon. The minutia is getting to me

123bob if nothing else you are the most consistent guy I have ever seen. Looking over the farm 9 results you have 9 tests. At load averaging all cores with three different pastes except for the one AS5 which on a remount along with 7 other pastes tested within about 1/2 a degree from each other with the IHS lapped and unlapped. I know you noted the compression issue but first time I had a chance to look close at he numbers. pretty remarkable

[123bob]

It's kinda like ever diminishing concentric circles of Chaos theory. I may be signing up for therapy myself soon. The minutia is getting to me

123bob if nothing else you are the most consistent guy I have ever seen. Looking over the farm 9 results you have 9 tests. At load averaging all cores with three different pastes except for the one AS5 which on a remount along with 7 other pastes tested within about 1/2 a degree from each other with the IHS lapped and unlapped. I know you noted the compression issue but first time I had a chance to look close at he numbers. pretty remarkable

LOL, well, my name is Bob. We Bobs have a reputation for being nothing if not consistent.....or is that stubborn maybe?

I WILL get this CPU to do something before I'm done. Of course, if I keep at it, I might get it to ambient at load because I broke the darn thing....

I figure it's probably time to move on to a few other machines to give you some more results...I'd like to see what my other six fuzion block machines show. I have better control of the mount with those.

Bob

Bob

[SiGfever]

It's kinda like ever diminishing concentric circles of Chaos theory. I may be signing up for therapy myself soon. The minutia is getting to me

123bob if nothing else you are the most consistent guy I have ever seen. Looking over the farm 9 results you have 9 tests. At load averaging all cores with three different pastes except for the one AS5 which on a remount along with 7 other pastes tested within about 1/2 a degree from each other with the IHS lapped and unlapped. I know you noted the compression issue but first time I had a chance to look close at he numbers. pretty remarkable

He always does very well in therapy also. When he leaves the office he can be heard muttering..."Need more Quads, need MORE Quads".