ICD 7 Results Thread

[Boy'nBlack]

Originally Posted by IC Diamond 7

There are going to be more lapping results as we go several other forums are doing this and a few are doing a lap test. I was never big on lapping but the contact tests raised my interest in it as it might be very effective. But again we shall see and hopefully result will be clear enough to make a conclusion one way or another, we may find it does not make a diff in any of it.

Not to go into the resume thing, but this was a huge project I was part of about 2 years ago. What started as a production QC turned into...something else. The tolerance on IHS's are really pretty good compared to older IHS units. Like Snell testing or something of that sort, units are pulled in the batch units and checked for tolerance. If one falls out of tolerance, the entire batch get new hats. But what was clear is that a certain degree of cupping is fine. A few make it through, but it's not as rampant as we'd think. If 1,000 units are within tolerance, about .03 of these are just slightly more cupped and just fall through the gaps.

They cup from more material being in the corners which tend not to shrink as much as the thin flat sections. The process has changed and constantly evaluated...and getting MUCH better. If you take a peek at a Penryn, Conroe, and Pentium in the same way you see new edging and a much better surface on the Penryn. It's more of a forging process now. And there's a small square detent to take up the expansion/contraction slack so the edges don't have a desire to end up being higher.

Lapping in itself should show some real life gains. It's just perfecting a pretty good process, like blueprinting an engine. What is expected though are very very minute gains. On our end; You can lose 1C, see it, and claim victory, and conclude. But you can also lose 1C just from re-seating a unit with no extra work. To get a result on our end, 10 resets should be made and the averages used. If the average is still 1C Delta, then victory is pretty relative to the work just done isn't it? Also, lapping should stop at flat and not carried over to shiny...as well as flat relative to the mounting parallel and not just flat.

[IC Diamond 7]

SiGfever 2.65 loss in performance XSF

Dtek FuZion WB (MX-2 TIM, large BB size dolop) (mounted 3/18/8, 15.5mm from top of knurled nut to top of the mounting plate) w/Backplate.
D5 Vario @5
MCR320QP w/ 3 80cfm fans in pull configuration
T-Line
7/16"id x 5/8"od MasterKleer

Specs:
Q6600 G0 vid = 1.2375
Abit IP35 Pro v1.1 bios = 14
Corsair 2 x 1Gb 6400c4 (5,5,5,15...1.9v)

Settings:
vcore listed: 1.4275v
vcore real: 1.35v
Buss Speed: 396
vMCH: 1.29
vICH: 1.09
Multi: 9
Core Speed: 3564
CPU VTT: 1.23
ICHIO: 1.55
CpuGtlref 0/2: 68%
CpuGtlref 1/3: 68%
PCI-E Clock: 101

[IC Diamond 7]

SiGfever 2.65 loss in performance XSF -continued

edit later for specs

[IC Diamond 7]

Originally Posted by Boy'nBlack

Not to go into the resume thing, but this was a huge project I was part of about 2 years ago. What started as a production QC turned into...something else. The tolerance on IHS's are really pretty good compared to older IHS units. Like Snell testing or something of that sort, units are pulled in the batch units and checked for tolerance. If one falls out of tolerance, the entire batch get new hats. But what was clear is that a certain degree of cupping is fine. A few make it through, but it's not as rampant as we'd think. If 1,000 units are within tolerance, about .03 of these are just slightly more cupped and just fall through the gaps.

They cup from more material being in the corners which tend not to shrink as much as the thin flat sections. The process has changed and constantly evaluated...and getting MUCH better. If you take a peek at a Penryn, Conroe, and Pentium in the same way you see new edging and a much better surface on the Penryn. It's more of a forging process now. And there's a small square detent to take up the expansion/contraction slack so the edges don't have a desire to end up being higher.

Lapping in itself should show some real life gains. It's just perfecting a pretty good process, like blueprinting an engine. What is expected though are very very minute gains. On our end; You can lose 1C, see it, and claim victory, and conclude. But you can also lose 1C just from re-seating a unit with no extra work. To get a result on our end, 10 resets should be made and the averages used. If the average is still 1C Delta, then victory is pretty relative to the work just done isn't it? Also, lapping should stop at flat and not carried over to shiny...as well as flat relative to the mounting parallel and not just flat.

Here you go.

http://download.intel.com/design/pro...s/31685201.pdf

page 32. flat .05mm -parallel .203

Interesting the forging part. Still sheet metal, you ever get any flexing of the IHS? Some of these high pressure contact areas loading up to the 85 psi of the film on one side of the lid.

[stinger608]

Hey IC, got the film in the mail today

Dang man, do you think you included enough IC Diamond TIM

Will get on this in the next few days!!!

[IC Diamond 7]

Originally Posted by stinger608

Hey IC, got the film in the mail today

Dang man, do you think you included enough IC Diamond TIM

Will get on this in the next few days!!!

Yeah, You got rolled into into another mailing subtest group. It was too much trouble to sort in the short time to make the mail that day.

Sorry! No special affection there

[IC Diamond 7]

Poll - what do you guys think of the Raw contact film as a diagnostic tool for contact/pressure issues?

[polobunny]

Originally Posted by IC Diamond 7

Poll - what do you guys think of the Raw contact film as a diagnostic tool for contact/pressure issues?

It's a good indicator but there's a few inconveniences.
Certain setups it's VERY hard to position properly while putting the heatsink on. Not really the film fault, mostly the mounting mechanism.
Other inconvenience would be that you have no idea how to correct a pressure that is too low, it's trial and error (add a washer/screw more depending on your configuration). Again though, it's not something about the film itself but the mounting.
So overall, I think it's a good and inexpensive tool for someone wanting to find out if he's using his heatsink optimally.

[IC Diamond 7]

Pressure film results up - I will post here but takes some reformatting of the pics so it will take me a few days

here

[OFFICIAL] Free ICD7 thermal compound for OCF members Results Thread - Page 11 - Overclockers Forums

and here

Innovation Cooling's Diamond 7 TIM test results - Page 25 - XtremeSystems Forums

[simple_inhibition]

hey! i think im 8A and 8B on that list hehehe