OCUK Official IC Diamond/ Perihelion Test Results

You mentioned you have very few laptop tests so.....
Compaq Presario V4000 ( pentium M 1.7 )

Load test was done using LinX for 30 mins, and idle temp was taken 15 mins after that.

Ambient temps in normal environments obviously fluctuate, so temps have been noted at max ambient


Before Compound:Akasa AK455 Been on about 3 months
Ambient Temp: 21.3 - 20.9
Idle Temp: 45
Load Temp: peaked at 65 with ambient @ 21.3 10 mins into test, but sat the majority @ 63-64

ICD - fresh application
Ambient Temp: 21.0 - 21.5
Idle Temp: 45
Load Temp: peaked at 64 with ambient @ 21.5 25 mins into test, but sat the majority @ 61-62

Will test my main machine during the week.
 
Last edited:
Here are my results from the first stage of testing, what interests me most is how this stuff will perform long term. MX-2 was great initially but then the performance degraded after a few weeks, whereas AS5 (which I went back to) takes a while to get going but is a consistent performer over time. Looking forward to seeing how Diamond performs over the next few weeks.

straightfromthetubescre.png
 
WingZero30 said:
That's surprising bainbridge. So initially MX-2 is beating IC Diamond. Hmm
Click to expand...

If the things I've heard about Diamond are true then this won't be the case for long, MX-2 got hotter & after a month "baked out" up in the high 60s. I recorded temps over a month for the other 2 so if Diamond sustains these temps it will be the winner. Will post the 1 week results next Sunday.
 
bainbridge said:
If the things I've heard about Diamond are true then this won't be the case for long, MX-2 got hotter & after a month "baked out" up in the high 60s. I recorded temps over a month for the other 2 so if Diamond sustains these temps it will be the winner. Will post the 1 week results next Sunday.
Click to expand...

May be you should reapply MX-2 to make the testing more consistent. This is what I am going to do with MX-4. So I will reapply MX-4, then let it 'settle in' for 3 days by playing games, general web browsing etc. Then I will do the testing.
Then same procedure will be repeated with IC Diamond.
 
Have had a play, nights gaming and checked max temps. My verdict is that IC need to make perehelion less viscous as it is basically dried mx3. Adding more solvent and reducing costs will give a practical contender to mx3.

Diamond is top notch but not a mainstream product due to cost.

Number one selling point with a bullet is that these will last, maybe negating the cost issue. That and diamond gives the best temps.
 
Last edited:
Mick-1965 said:
You mentioned you have very few laptop tests so.....
Compaq Presario V4000 ( pentium M 1.7 )

Load test was done using LinX for 30 mins, and idle temp was taken 15 mins after that.

Ambient temps in normal environments obviously fluctuate, so temps have been noted at max ambient


Before Compound:Akasa AK455 Been on about 3 months
Ambient Temp: 21.3 - 20.9
Idle Temp: 45
Load Temp: peaked at 65 with ambient @ 21.3 10 mins into test, but sat the majority @ 63-64

ICD - fresh application
Ambient Temp: 21.0 - 21.5
Idle Temp: 45
Load Temp: peaked at 64 with ambient @ 21.5 25 mins into test, but sat the majority @ 61-62

Will test my main machine during the week.
Click to expand...

I only have a couple of other Akasa tests from the last German giveaway, seems to do pretty well although I would like to see 20-30 samples - it may be an underrated or unappreciated performance compound.

And thanks for the Laptop test
 
Quick post of initial findings but will put a more detailed post of my current results (per core) and run further tests, tonight.

Set up:
CPU Q9550 @ 3.8Ghz
Cooler: Thermalright U120
Cooler fans: 2xNoctua NF-P12

Load tool: 2 x Orthos

unable to get ambient temps unfortunately.

Current TIM: MX-2, been on for about 6 months.
max Load temp 55°C (only 1 core hits this)
This was a fresh run yesterday around 10am.

Now i replaced the TIM with ICD and did 3 runs.

1st run (1 hour orthos) around midday.
Max temp: 55°C
So same as the MX-2. not sure what the cure time is but i was expecting a drop in temperature so decided to reapply it. (should have given it more time to cure tbh)

2nd run around 8pm.
Max temp: 58°C (duration only 5mins as the temps would only go up imo)
Wasn't expecting that spike in temperature tbh. Even if it was the evening with some heating on, i've never gone past 55°C with my MX-2 TIM.
Thought it could be a mounting issue so reapplied TIM and remounted.

Run 3 around 11pm.
Max temp: 58°C (again only 5mins)
Not sure what i'm doing wrong but it could be a number of things.

1) Mount issues?
2 too much or too little TIM. i'm suspecting too much (would that have a negative impact?)
3) not enough cure time?
4) ambient temps not accounted for? but then Even if it was the evening with some heating on, i've never gone past 55°C with my MX-2 TIM load runs.

I will give it another run tonight but the thing that makes it annoying to test is the cooler has such an awkward mount system. This could be spreading the TIM unevenly as when i'm trying to screw it down, the cooler is being moved/wiggled (unfortunately) and also as i have to screw down each corner, different pressure is being applied to each corner at different times.

yes it's not a conclusive test but my initial findings aren't great unfortunately. hopefully I can run it some more and see some positive result, as i've run out of MX2 :p

Will post a detailed breakdown later tonight.
 
I got nothing to do before work so decided to test the IC Diamond which I got a few hours ago:)

The rig is the one on my signature. The voltages are:

Vcore: 1.375 (might be able to lower it but haven't been in the mood to tweak it further)
VCCIO: 1.125
PLL: 1.70625
LLC Ultra High

Room temp was around 22C according to my thermometer.
Old compound: Prolimatech Compound which came with the Megahalems
The fans are 2 Scythe Slip Stream SY1225SL12SH 1900rpm set to run at 6V by my fan controller.

Prolimatech compound results:
Idle temps:
Core 0: 29C
Core 1: 34C
Core 2: 32C
Core 3: 32C

Load temps (after 15mins of running prime 95 small FFTs):
Core 0: 70C
Core 1: 81C
Core 2: 81C
Core 3: 75C

IC Diamond results:
Idle temps:
Core 0: 28C
Core 1: 33C
Core 2: 30C
Core 3: 30C

Load temps (after 15mins of running prime 95 small FFTs):
Core 0: 68C
Core 1: 77C
Core 2: 77C
Core 3: 73C

So there was a 2-4C fall in my temps. I'm willing to see long term performance of the compound however, if I notice any improvement/decline on the performance I'll come back to post it.

My thanks go to IC Diamond for the free samples of their product
 
Another one from me on my main PC i5 760 @ 3.8GHz
Custom watercooled.
CPU block is a D-Tek Fuzion MK1 with a standard mount kit. Tightened down to the stops as suggested by D-Tek. This if I remember rightly produces 40~ lbs of pressure

Idle temp was taken 1 hr after booting the PC
Load test was Prime95 Small ffts for 1 hr


Before Compound: Arctic cooling MX4 applied 10 weeks ago
Ambient Temp @ idle: 20.6
Water temp @ idle: 22.2
Idle Temp: 29-24-30-24

Ambient Temp @ load: 20.8
Water temp @ load: 24.3
Load Temp: 49-45-47-45


ICD - fresh application
Ambient Temp @ idle: 20.7
Water temp @ idle: 22.2
Idle Temp: 29-24-30-24

Ambient Temp @ load: 20.9
Water temp @ load: 24.2
Load Temp: 50-45-49-46

Seems the MX4 has the edge over the ICD in this instance. Maybe it needs time to cure or there's not enough mount pressure.
I'll re run the load test again in a few days or so to see if curing time helps any.
 
Q6600 @ 1.3v @ 2.8ghz

Akasa 450 idle
35
36
38
38

Load (10 cycles intel burn test, highest read)
70
72
74
74

IC24 idle
32
32
34
34

Load

64
65
65
66

big improvement over the akasa for me. note, my tube of akasa must be over 4 years old - could it have gone off?
 
Cpu = i5-2500K @ 4.4 Ghz
Cooler = Akasa AK-CCX-4002HP Venom single fan
Test = Prime 95 small FFTs Ran for 1Hr

Arctic Silver 5

Ambient Temp = 20c

Idle Temps
Core 0 = 28c
Core 1 = 28c
Core 2 = 28c
Core 3 = 28c

Full Load Temps
Core 0 = 56c
Core 1 = 58c
Core 2 = 57c
Core 3 = 58c

Ic Diamond

Ambient Temp = 20c

Idle Temps
Core 0 = 26c
Core 1 = 26c
Core 2 = 26c
Core 3 = 26c

Full Load Temps
Core 0 = 52c
Core 1 = 55c
Core 2 = 53c
Core 3 = 53c
 
Mick-1965 said:
Another one from me on my main PC i5 760 @ 3.8GHz
Custom watercooled.
CPU block is a D-Tek Fuzion MK1 with a standard mount kit. Tightened down to the stops as suggested by D-Tek. This if I remember rightly produces 40~ lbs of pressure

Idle temp was taken 1 hr after booting the PC
Load test was Prime95 Small ffts for 1 hr


Before Compound: Arctic cooling MX4 applied 10 weeks ago
Ambient Temp @ idle: 20.6
Water temp @ idle: 22.2
Idle Temp: 29-24-30-24

Ambient Temp @ load: 20.8
Water temp @ load: 24.3
Load Temp: 49-45-47-45


ICD - fresh application
Ambient Temp @ idle: 20.7
Water temp @ idle: 22.2
Idle Temp: 29-24-30-24

Ambient Temp @ load: 20.9
Water temp @ load: 24.2
Load Temp: 50-45-49-46

Seems the MX4 has the edge over the ICD in this instance. Maybe it needs time to cure or there's not enough mount pressure.
I'll re run the load test again in a few days or so to see if curing time helps any.
Click to expand...

Try a re-torque on the screws

like re-torquing the head gasket on the old cars after the first 1,000 miles.

Compound spreads with heat and pressure so on a screw system if left at the first torque point paste will thin out but distance between sink and IHS remains the same so you would not see the optimal bond line

This guy got a couple more C after re tightening his screws after warm up and I have been thinking it might be a good Idea to make an observational request on this survey if it checks out with you people I would incorporate into the application procedure

i torqued all gpu screws to 180oz wait 5mins then re torqued to 220oz then 5mins then torqued to 415oz done

do to how thick this stuff is i think anyone that use it might want to let sit 10mins and torque them down a 2nd time
after 5mins with each step i got almost 2 full turns more on the screws the hold around gpu
Click to expand...

Nice block - .025 C/W has to be close to material limits

If it is 40lbs it would be under our recommended pressure minimums
 
Last edited:
There's no real point tightening the screws any further, they are already down to the stops.( plastic sleeves down the insides of the spring ) Besides over tightening without the use of a back plate can damage the board.

On the other hand I've let it cook for the last 4 hours.
Placed a few sheets of A4 over the radiator to block air flow, run IBT 300 odd times with kombustor running too. CPU was at 75c with the water at 43c, so hopefully allowing the ICD to spread a little.
I'll retest tomorrow when the ambient is back down ( heating is on now )
 
OK here is a clearer break down after my initial post above:

Set up:
CPU Q9550 @ 3.8Ghz
Core voltage: 1.240V (CPU-Z)
Cooler: Thermalright U120
Cooler fans: 2xNoctua NF-P12
Load tool: 2 x Orthos

Test1: MX-2 Idle (been on for about 6 months )
Core 0: 39C (Stuck core)
Core 1: 28C
Core 2: 27C
Core 3: 37C (Stuck core)

Test2: MX-2 Load
Core 0: 55C
Core 1: 51C
Core 2: 50C
Core 3: 50C

Test3: ICD Idle
Core 0: 39C (Stuck core)
Core 1: 30C
Core 2: 28C
Core 3: 37C (Stuck core)

Test4: ICD Load (around midday)
Core 0: 55C
Core 1: 51C
Core 2: 50C
Core 3: 51C

This was a pretty decent run imo but because i was expecting great things from ICD i decided to reapply the TIM.

Test5: ICD Load (around 8pm)
Core 0: 58C
Core 1: 54C
Core 2: 53C
Core 3: 53C
Ambient temps could have increased as heating was on but i;ve never gone past 55C on a core using MX-2. So seeing the temps so high i reapplied ICD again thinking it could be a seating issue or application issue.

Test6: ICD Load (around 11pm)
Core 0: 58C
Core 1: 53C
Core 2: 53C
Core 3: 53C

pretty much the same as before. I thought i would call it a night and let the TIM cure a bit. The following are results after leaving it overnight.

Test7: ICD Load (around 8am)
Core 0: 55C
Core 1: 50C
Core 2: 48C
Core 3: 48C

Ooo getting there.

Test7: ICD Load (around 7pm)
Core 0: 56C
Core 1: 52C
Core 2: 50C
Core 3: 50C

Getting back to levels i would have expected from my old MX-2, but currently slightly dissapointed that i'm not seeing any difference/benefit. This could be down to my lack of application method skills or a multitude of things so I'm going to follow the advise and try and re-tighten the heat sink and run some further tests and will report findings.

edit: Couldn't re tighten the screws as they were already at max amount. will leave a test running later.
 
Last edited:
right guys
i am getting mixed results, and it seems to be IBT thats doing it.

ambient temp was 21.C for all tests.

my first run on original MX-4
idle- 28, 28, 26, 29
load- 74-74-73-73
ibt test. free ram was 2450 so used 2400mb custom ram in test (36 gflops)

first run on IC-D
idle- 27-28-26-28
load 69-69-69-69
ibt test, free ram was 2135 so used 2100mb custom ram in test (30 gflops)

i was pleased with the temps, but the gflops dropped a lot, so i reasoned it was with the lower amount of ram used in test.

second run on IC-D
i restarted pc. after 10 mins i checked resource monitor and i only had 1900mb of free ram, but i tried running it with 2100mb custom ram. results are
idle, 27-27-26-28
load 78-78-78-78
ibt test free ram was 1900, but ran it at 2100 custom ram, (38 gflops)

third run on IC-D
i restarted pc again and checked running processes etc, i cant get higher than 2150 free ram, so i ran the test one more time
idle 27-27-26-28
load 74-74-73-73
ibt test free ram was 2150 so ran test at 2100 custom ram (34 gflops)

in IBT i tried with 2400 custom ram, but the temps were hitting 80.C and it failed the test on the second run.

it seems that if i go above the free ram, the temps shoot up, and even staying at 2100mb ram in the test, i am getting mixed results with temps and gflops.
there is nothing running except coretemp, realtemp and IBT.

this is down to me, so i will have to start again.
i will leave the pc as it is for a few days and run the test at a set amount, eg 2000mb.
then i will reuse MX-4 and re-test with that

i originally have MX-4 on my Q6600 B3
its at 3.3GHz 413 x 8
with a Tunic Tower 120
TJMax is 90, i used realtemp and coretemp

also thanks a lot to IC Diamond for supplying us
 
You must log in or register to reply here.
Back
Top Bottom