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Thread: Pure Overclock Official IC Diamond Test Results

  1. #33
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    Bully, also remember to tighten your mounting screws after the 2hrs

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    Quote Originally Posted by Deton View Post
    I knew water cooling users will have better results than aircoolers.

    @Bully; when you do Sandybridge testing. Can you probe the water temperature?
    you should do exactly the same procedure for both pastes, i.e; same amount of the compound, 2hrs of curring time, idle or load but don't spend hr of idle for one paste then do 2hrs of load for the other.

    Bottom line is don't make any changes during the test for either paste, you want to keep it consitent all across the test.

    Since we don't have your coolant temps, so I'm going estimate your delta temp is around 5C. That's pretty good for thermal compound.
    Yes I will probe the water temp, although I do not have the bits power coolant probe, I will be using my trusty thermo hawk sensor, which is a reasonable enough to get the temp readings of the coolant.

    And yes same testing procedures to maintain accuracy and consistency

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    Quote Originally Posted by Doctor_Death View Post
    Bully, also remember to tighten your mounting screws after the 2hrs
    Okay I will bear that in mind. Thanks DrD

  4. #36
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    Bully; here is a quick check or calibrate your thermo sensor, dip it in ice to see the reading. You may not be able to calibrate your thermometer but at least you can tell its accuracy.

    Another tip for all testers: Instead of applying more pressure to the mounting screws after 2hrs of curring time. You can dip the compound tube in a room temperature water for 5-10 minutes then use it. This will help to smooth/softening any dense compounds out, also it allows you to apply more pressure from the get go.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Quote Originally Posted by IC Diamond View Post
    I Have the C/P Paper in but have to apologize for the delay in shipping it out, been shorthanded with summer vacation and this is kind of a complex mailing, 4 envelopes, plastic bags, return envelopes cutting up a few hundred 1.3 squares making sure the right ones go in the right envelope ... In any event the test kits go out tomorrow so some should be getting them in a day or two.
    Hello Andrew,

    I received the test kit, and now need a bit of direction on how to proceed, since instructions were not included ...

    The kit contains a replacement syringe of IC Diamond and a pair of small envelopes, labeled A and B. "A" contains five (5) squares of material that are probably pressure sensitive (although I have not seen such before) which have a shiny side and a dull side. "B" is similar, but with squares that are seemingly more translucent. Also included is a letter-sized envelope for returning test results.

    So ... is the "Pressure Paper" put in place with shiny side up or down, or does it not matter and any side will suffice? Is ICD to also be present, and if so is it layered above or below the Paper? How long should the mounting be in place before disassembly and removal of the Paper? Is this all done with the system powered off, or running at idle or under load? As there are five in each envelope, that tends to imply ten (10) tests - how should they differ?

    Please provide details on steps to take, and do pardon my ignorance in this matter.

    I am on vacation this week, with no specific plans, so have ample free time for testing and experimentation.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Quote Originally Posted by ZeroChill View Post
    Hello Andrew,

    I received the test kit, and now need a bit of direction on how to proceed, since instructions were not included ...

    The kit contains a replacement syringe of IC Diamond and a pair of small envelopes, labeled A and B. "A" contains five (5) squares of material that are probably pressure sensitive (although I have not seen such before) which have a shiny side and a dull side. "B" is similar, but with squares that are seemingly more translucent. Also included is a letter-sized envelope for returning test results.

    So ... is the "Pressure Paper" put in place with shiny side up or down, or does it not matter and any side will suffice? Is ICD to also be present, and if so is it layered above or below the Paper? How long should the mounting be in place before disassembly and removal of the Paper? Is this all done with the system powered off, or running at idle or under load? As there are five in each envelope, that tends to imply ten (10) tests - how should they differ?

    Please provide details on steps to take, and do pardon my ignorance in this matter.

    I am on vacation this week, with no specific plans, so have ample free time for testing and experimentation.
    Test is straight forward - take one "A" and one "B" - shiny sides to the IHS and sink so the frosted sides are facing each other.

    Mount your sink as you normally would - WITHOUT ANY COMPOUND - Try to make a clean print and not move under pressure

    Dismount and remove paper - blank throw away - Red/pink image is your print that you send back

    You can scan or photograph image and post for discussion while waiting for results.

    label key envelope with your name or some identifier and forum so we can link thermals to CP

    Sensor Products has a "key" somewhere on their site that will give you a general interpretation of of your pressure +/- 10% - I will see if I can locate it and post it up.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Got mine in the post too. Leave starts in 10 days so I will start the testing then.
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    Default Re: Pure Overclock Official IC Diamond Test Results

    I performed a test wherein ICD was applied to the heatsink using the spreader method. I figured that being able to visually confirm good coverage prior to mounting, rather than using a pea size dollop and then just hoping for good coverage as pressure is applied, would be a nice experiment. My results were an improvement. This possibly argues that my prior pea size tests (here) were lacking in volume or effective displacement under pressure.

    ICD Diamond (spread test)
    Ambient Temp: 24
    Idle Temp: 40
    Core 0: 43
    Core 1: 40
    Core 2: 43
    Core 3: 40
    Load Temp: 70
    Core 0: 74
    Core 1: 71
    Core 2: 72
    Core 3: 71

    Here is a photo of the CPU after the test:



    Here is a photo of the heatsink base after the test:



    Here are three consecutive pressure tests: (1) basic mount with screws fully driven, (2) an attempt to further tighten beyond #1 even though the effort seemed futile, (3) an attempt to tighten even more beyond the extra tightening of #2. Note that neither #2 nor #3 appeared to feel like the screws moved at all. But yet there seems to be incremental improvement in coverage on pressure paper #2 and then #3.



    If pressure paper image #3 does indeed reflect a better mounting effort than the other two ... which is what it suggests ... then that argues that improved results for ICD could potentially be achieved by similar extra tightening ... even though there is no noticeable tactile response while attempting to more firmly drive the mounting screws. Meaning re-testing on my part may be worthwhile.

    Andrew - I mailed the envelope with the pressure papers; sandwiched between two layers of cardboard.

    So ... after studying these images do you Andrew, or any of you PureOC folks, have conclusions or observations to offer? Either about the quality of this latest test, or about subsequent experimentation? Comments please ...

    EDIT: I performed just three of the possible five pressure paper tests, reserving two, in case there is a desired follow-up from this particular posting.
    Last edited by ZeroChill; 06-08-2011 at 00:07.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Is your test results from the maximum tighten the screws?

    According to the pressure test images you have pretty good contacting surface. After Andrew analyzed the pressure test images, he can tell us how much pressure was applied.

    You did gain another 2C from the previous tests. Overall, you've gained 3C from the other TIMs. It sounds more like it.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    The temperature results that I just listed were obtained earlier this week. I simply screwed the bolts down tightly, to the point where they felt solid and would not move any more - the very same approach I used for all of my other tests posted before. Nothing special. Nothing different. Except for having spread the TIM, instead of using a pea-sized blob.

    But while doing the pressure paper testing today, I began to wonder. The first paper seemed awfully faint with too much area missing. So for the second paper I tightened the mount just like all of the other times - but then gave a final very hard turn on each screw. This second pressure impression showed better coverage. So for the third paper, I decided "what the heck", and risked thread stripping and screw head mangling by using even greater force, twice in a row, after first screwing things down solidly. And as you can see, that third result seems pretty good - the best of the three.

    So, no, I have not yet run a new set of temperature tests using that extra amount of force that is shown on pressure papers #2 and #3. Hence, pressure paper #1 represents all of the temperture tests performed by me so far.

    Papers #2 and #3 are just experiments, and at no time did it ever feel like the screws actually moved even a little bit when applying the extra force. My guess is that they did move. Ever so slightly each time. Just enough to make an incremental difference. Makes sense?

    I just now went and reclaimed Andrew's envelope; the postman would not have picked it up until sometime tomorrow. My intention at this point is to run another set of temperature tests, using excessive force on the screw mounts. And to use the pair of remaining pressure papers, also with extra force, to represent the new tests. I will then write everything up as a detailed letter - a complete set of test results together with the complete collection of pressure papers - which then get shipped out to Andrew.
    Last edited by ZeroChill; 06-08-2011 at 03:12.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    I ran additional stress tests using extra firm force on the mounting screws as per Pressure Paper #3, with ICD being applied via a spreader. Here are two sample results after stressing for six (6) hours:

    IC Diamond (spread test / extra tight mount)
    Pressure Paper #3
    Ambient Temp: 24
    Idle Temp: 38
    Core 0: 43
    Core 1: 40
    Core 2: 43
    Core 3: 40
    Load Temp: 69
    Core 0: 74
    Core 1: 72
    Core 2: 72
    Core 3: 71

    IC Diamond (spread test / extra tight mount)
    Pressure Paper #3
    Ambient Temp: 24
    Idle Temp: 39
    Core 0: 43
    Core 1: 41
    Core 2: 43
    Core 3: 40
    Load Temp: 70
    Core 0: 74
    Core 1: 71
    Core 2: 71
    Core 3: 70

    Here are the prior results with normal screw pressure:

    IC Diamond (spread test / normal pressure)
    Pressure Paper #1
    Ambient Temp: 24
    Idle Temp: 40
    Core 0: 43
    Core 1: 40
    Core 2: 43
    Core 3: 40
    Load Temp: 70
    Core 0: 74
    Core 1: 71
    Core 2: 72
    Core 3: 71

    IC Diamond (pea test / normal pressure)
    Pressure Paper #1
    Ambient Temp: 23
    Idle Temp: 39
    Core 0: 39
    Core 1: 37
    Core 2: 41
    Core 3: 37
    Load Temp: 72
    Core 0: 74
    Core 1: 72
    Core 2: 72
    Core 3: 71





    Notes:
    • The posts of prior results are here and here.
    • Prime 95 was run for all tests with "In-place large FFTs", since experimentation showed it to yield higher temperatures than "Blend".
    • I will mail the envelope with test results tomorrow.
    Let me know if any further tests are desired.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    IC Diamond testing part 1

    My EK Extreme High Flow block has the Easy mount kit fitted. The kit contains springs designed to ensure that the user experience is consistent. In one place I found the following info: “Each of the springs offer 7,8 kg of pressure, and therefore optimal pressure of 30 kg (66lbs) on CPU can be achieved”. Those of you that know the size of the CPU is 37.5mm x 37.5mm will realise that the area here is 1406mm2 or 2.17 sq. in. This results in a pressure applied of 30.36lbs/psi. Now I don’t know much about engineering but I thought that compression springs are sold in given dimensions and with a given spring resistance rate which here in Europe would be in N/mm and that this would in effect mean that a force of “x” Newtons would be applied for every mm that the spring was compressed. This leads me to ask if the 7.8KG of pressure mentioned above would be when the spring is fully compressed.

    The first series of tests will be completed using this “stock” configuration. The thumbnuts are tightened until the springs begin to bind. This can be both felt and heard.
    In the later part of the week I hope to experiment to find the torque settings that will cause thread failure in brass 4mm nuts and screws. When this is completed I hope to source some springs that are “uprated” and use the pressure film provided to show the expected advantage gained.

    The current Installation used is MX2 and is around 3 months old. Application was using the“pea” in the centre method
    The rig is connected to the MOAF cooled System. There are 2 other rigs running on the system but the test rig is located in a position on the loop where there is no further influence on the result than that of the base temp of the water.
    Ambient temperature today at start of test is: …….21.9Deg C. as measured at the fan intake.
    After 15 minutes of steady state the idle temps in Deg C are
    CPU: ……….15
    Core1: ……….24
    Core2: ……….24
    Core3: ……….24
    Core4: ……….24
    Water in temp: ……….22.8
    Water out temp: ……….22.8
    Testing is with my i7 2600k that in this instance is set to run at 4.7Gig and 1.476v load volts (yes, I know! L)
    Latest version LinX (0.4.6) set to Max mem, with largest problem size. The following are Maximums seen during the test, these measurements taken after 30+ minutes although to be honest a ten minute test would suffice.
    CPU: ……….55
    Core1: ……….55
    Core2: ……….65
    Core3: ……….60
    Core4: ……….60
    Water in temp: ……….22.8
    Water outtemp: ……….23.1



    First pressure film was used tightening the thumbnuts as described above
    Second pressure film was used as above then tightened a further 1/2 turn


    __________________________________________________ ___________________________________

    Application,as per the instructions at Innovation Cooling, of the Diamond Tim I chose to be more at the 5.5mm end of things having seen the pressure images
    I ran LinX for around half an hour then restricted the water flow to take the temp up to 80 degrees where I held for 5 mins. An extra half turn was applied to the thumbnuts then the rig was left to run WCG overnight.There are two reasons for this, first is that ambient had dropped by 5 degrees by this time, and second was to give the ICD time to “cure”



    Testing continued on day two

    Ambient temperature today at start of test is: …….22.9 Deg C.
    After 15 minutes of steady state the idle temps in Deg C are
    CPU: ……….15
    Core1: ……….24
    Core2: ……….24
    Core3: ……….24
    Core4: ……….24

    Water in temp: ……….23.8
    Water out temp: ……….23.8

    Bear in mind the ambient differential of 1 Deg C

    The following are Maximums seen during thetest, these measurements taken after 30+ minutes
    CPU: ……….54
    Core1: ……….55
    Core2: ……….65
    Core3: ……….61
    Core4: ……….61
    Water in temp: ……….23.8
    Water out temp: ……….24.0


    First test results
    CPU: ……….1Deg improvement
    Core1: ……….0deg difference
    Core2: ……….0deg difference
    Core3: ……….1deg worse
    Core4: ……….1deg worse

    Taking into consideration the Ambient temps this is then seen as

    CPU: ……….2deg improvement
    Core1: ……….1deg improvement
    Core2: ……….1deg improvement
    Core3: ……….0deg difference
    Core4: ……….0deg difference

    Conclusion:

    My set-up is not exactly testing friendly in the summer …. There is too much fluctuation in ambient temperatures, however in terms of absolute maximums there is still some improvement to be seen when this is taken into consideration.
    Perhaps less scientific, but as an observer during the testing I would say that, in the round, I was seeing one maybe two degrees improvement across the board throughout the test even though the maximums appear to show otherwise. I will attempt to graph the next mount
    I need to repeat this testing during more consistent weather or at night. Further mounts may also be useful for identifying the optimum amount of applied TIM

    Finally ….Boy oh boy do I need to lap this sucka. In fact I may do that and repeat the above sequence ... Thoughts anyone?
    Last edited by grumpydaddy; 22-08-2011 at 18:39.
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  13. #45
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    Default Re: Pure Overclock Official IC Diamond Test Results

    WoW Gruppy, very well thoroughly and here is my analysis.

    1) Spring load: this is how I understand above spring load pressure, if the spring rated of 30lb/psi which it's mean you need 30lb of force to compress the spring to move one inch. I'm sure most water block springs are not one inch long, perhaps 3/4" long. So if you take 30 divided by 4 = 7.5lb/psi per spring. It's definitely not 30lbs per spring.

    Or you can use this formula and a digital scale to calculate the compression load.
    R=(P2-P1)/(L1-L2)

    A. Deflect spring to approx. 20% of available deflection and measure load (P1) and spring length (L1)

    B. Deflect spring no more than 80% of available deflection and measure load (P2) and spring length (L2). Make sure no coils other than closed ends are touching at L2.

    2) Pressure Imprinting: the image telling me your block is bowed or the IHS is convex. It's barely have any imprint on it's perimeter.

    Question: What's your block mount orientation, the ports are parallel or perpendicular to the memory modules?
    Because this is very important for Intel multi-core CPUs. Especially when the block is bowed.

    3) Performance results: Your numbers are not quiet right and not consistent the same testing procedure.
    For example; MX-2 was used for 3 months and you had IC 24K for less than 8hrs of use.

    MX-2 has no recommending of curing time but IC24 has 2hrs. So I think you should test both TIM under 2hrs of used to be more fairness.

    Now let's analysis the temps. You were saying the ambient temp fluctuating, no worry. We just use Delta temp or the water instead.
    I will be using load temps here and averaged core temps.
    Thermal InterfaceCore AvgWaterAmbDelta
    MX-26022.821.937.2
    IC2460.523.122.937.4

    edit: the numbers are not seem right here.
    Last edited by Deton; 22-09-2011 at 17:20. Reason: typo on temperature figures

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Thanks for your input Deton. I'll post a more full reply tomorrow (I have a ~700ml round trip journey today).

    1) About the springs: If there is a good supplier locally I will discuss this with them but there are certainly some manufacturers in UK (still) so I can get these answers.

    2) I see the pressure images as showing the CPU to have two high spots (north and south in the images) which are preventing full contact across the center of the processor. this extends right to the edge of the cpu.

    Block orientation is ports perpendicular to the mems (more on this later)

    3) I intend to repeat the test as soon as I have the info in (1). I'll look at those Delta temps later to see what you did there.

    Got to go for now
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    Default Re: Pure Overclock Official IC Diamond Test Results

    700ml by yourself?
    Damn you're a wino.

    1) yeah find out and let us know but it doesn't make sense for a tiny a little spring take up to 30lbs to compress. That's a lot of force.

    2) 2600k's core runs parallel to the mem, if you can get the block's water channels run parallel to mems then you will have better coverage. The ports should be North & South orientation in this case. Look at your Core0, it's 10C different, a big different. It shouldn't be more than 5C. EK has bad mounting mechanism especially the older HF Supreme.

    3) if you do retesting then try exact the same method for both TIMs. IC24 is supposed to have better thermal transferring which is should have high heat dump into the coolant but if you look at the coolant temperatures for both TIMs. It's barely move even when IC24 has higher ambient temp.

    So I think you have some human error here. I hope you didn't consume the 700ml while you doing the test.

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    Default Re: Pure Overclock Official IC Diamond Test Results

    Just back from vacation & currently battening down for a little tropical squall this weekend

    Lost my home PC due to lightening strike(s) So a couple days reconfiguring all and should be back to work on the info you guys are generating.

    Good stuff! Pretty much as I thought.

    ZeroChill very nice report you sent going to read in depth over next couple of days, thanks

    grumpydaddy - I am thinking this is pretty typical of what contact looks like on many water blocks, nice job on the tests and commentary you guys are providing me some great insight on this.

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