ICD 7 Results Thread

[theburan]

Hey, do you just want one sample from my cpu and one from my gpu, or do you need 2 from each?

EDIT: Well, I just ran the test on my new 7600gt, my e6300 using the scythe cooler of mine, and the e6300 with the stock intel cooler, and, well... my ihs sucks. Pretty much no contact in the center of the heatsink according to the magic film, with both the scythe heatsink and the intel heatsink.

I may have to lap this little guy, whenever I get around to water cooling him (which may be a bit, since my fuel pump in my car likely died... but yeah.....

Also, with the 7600gt, it seems to be running about a degree colder on idle, but a degree hotter under load, so I'm gonna let it settle in for a bit before saying anything definite. (it looks like the card's hsf had been removed before, so I think it was running as5 before, or something similar.)

[stinger608]

Hey Theburan, you didn't run the video card with the film on it did you?

[gvblake22]

Originally Posted by IC Diamond 7

If I missed you in the first mailing I will get you tuesday I did run short a couple of samples.

Thanks, Have some more Anandtech prints if you want to compare

http://home.comcast.net/~swright38/lapresult.pdf

That is a very interesting document! The first pressure test appears to have the best pressure/contact in the middle of the IHS where it would seem to matter most, but that actually yields the worst temps. Then when the lapped the heatsink, the pressure appeared to be the most around the edges, which would seem to be worse but the temps improved. The last one is the most interesting to me. There really aren't any high-pressure areas anywhere on the IHS, but the temps were the best out of any tests! This leads you to believe that high pressure mounting is not ideal!

[theburan]

Originally Posted by stinger608

Hey Theburan, you didn't run the video card with the film on it did you?

No.... the film was only used when the card was off and out of the case, lol. I'll be looking at the temps again, since it had a chance to settle in over night and whatnot.

[stinger608]

Originally Posted by gvblake22

That is a very interesting document! The first pressure test appears to have the best pressure/contact in the middle of the IHS where it would seem to matter most, but that actually yields the worst temps. Then when the lapped the heatsink, the pressure appeared to be the most around the edges, which would seem to be worse but the temps improved. The last one is the most interesting to me. There really aren't any high-pressure areas anywhere on the IHS, but the temps were the best out of any tests! This leads you to believe that high pressure mounting is not ideal!

That is very odd indeed Blake!!! Who would of thunk!!! I would of expected the complete opposite of that test

[IC Diamond 7]

We will have to see how the digital mapping comes out on that one, always hard to tell from a picture

I think it is something like the link supplied below you probably have 90lbs on the edges and a good contact on center on the first but the average psi my be onli 40.

Bottom that pressure is probably more evenly distributed and may be 40 psi average across the IHS also.

XtremeSystems Forums - View Single Post - Innovation Cooling's Diamond 7 TIM test results

[theburan]

I'll try and get my results in the mail tomorrow.

[gvblake22]

Originally Posted by IC Diamond 7

XtremeSystems Forums - View Single Post - Innovation Cooling's Diamond 7 TIM test results

Interesting. I'm very excited to see more of these results, the findings are more and more intriguing. It's easy to forget too that there are two surfaces in question here (the IHS and the heatsink its self). So it's almost impossible to say that the IHS or heatsink base along is shaped a certain way just based on the results of this pressure test. It would be good to figure out how to mount the heatsink and/or processor onto a piece of glass with the pressure film to give you an idea of how flat the two surfaces actually are.

[IC Diamond 7]

Originally Posted by gvblake22

Interesting. I'm very excited to see more of these results, the findings are more and more intriguing. It's easy to forget too that there are two surfaces in question here (the IHS and the heatsink its self). So it's almost impossible to say that the IHS or heatsink base along is shaped a certain way just based on the results of this pressure test. It would be good to figure out how to mount the heatsink and/or processor onto a piece of glass with the pressure film to give you an idea of how flat the two surfaces actually are.

The pressure film is an indicator of contact and pressure. Some gross features are readily recognizable like if the heat sink is resting on the bend of the IHS. At overclockers there is an impression of a direct contact heat pipe and the pattern lines up there pretty well.

The problem as I see it and as you pointed out is what happens on each side of the equation, A gross feature could be .002 or.20 or some combination of features that just happen to line up that way?

This impression thing has me thinking of looking into crime scene forensics should be able to get both. A dial indicator and a surface plate would give me that, but I do not think everybody wants to send me their CPU and sinks.

Playdough, metal foil, or maybe a liquid plastic or rubber that hardens on mount that you could just peel off? That way you would pick up both the weak and strong points on each side together on mount with whatever compression/flex the IHS has.

[Reloadron]

This impression thing has me thinking of looking into crime scene forensics should be able to get both. A dial indicator and a surface plate would give me that, but I do not think everybody wants to send me their CPU and sinks.

The plot thickens. I wonder if someone were to actually set up and measure the micro finish and flatness of a few processors and heat sinks what they would find?

Ron