testiclees
Well-Known Member
these jawns seem to be unavailable in USA. Second choice?I have used
Akasa AK-TT12-80 Thermal Adhesive Tape
for just over a month on 2 cxb3590 72v with no problems
these jawns seem to be unavailable in USA. Second choice?I have used
Akasa AK-TT12-80 Thermal Adhesive Tape
for just over a month on 2 cxb3590 72v with no problems
Testy, I thought from other posts you were going to use the Ideal holders. If so, I think you want pads like Sal's recommending, not tape i.e. no adhesive. Arctic sells pad material as well through Amazon. (LINK) As to which is a better way to go, I've no fact-based info. My guess is that either will work well provided the grease application is reasonable. Doer's approach looks pretty foolproof. Perhaps that a plus for pads; hard to mess up the installation.these jawns seem to be unavailable in USA. Second choice?
Hey thanks man,Testy, I thought from other posts you were going to use the Ideal holders. If so, I think you want pads like Sal's recommending, not tape i.e. no adhesive. Arctic sells pad material as well through Amazon. (LINK) As to which is a better way to go, I've no fact-based info. My guess is that either will work well provided the grease application is reasonable. Doer's approach looks pretty foolproof. Perhaps that a plus for pads; hard to mess up the installation.
Well, the purpose of thermal paste is to fill "invisible" gaps, almost on molecule level so that a heatsink and a component make the best and "closest" connection, aka "use as little thermal paste as even possible". Any too much TP is still more insulating (and then would lead to more heat) compared to the thinnest layer of TP possible. You have a point tho with not using the "dab method". We do this for CPUs like this, and in many years I have never seen that the dab method would create a bubble or not evenly spread out.I recall @stardustsailor had a situation where a large air bubble in the center of a CXA3070 caused damage to the center of the COB. So the paste can make a significant difference. I prefer to err on the side of using too much paste rather than using too little because you can squeeze the excess out by pressing and the layer will be very thing either way.
I think it was @Doer that suggested I spread the paste on the COB rather than using dabs. I tried it and it does work well and reduces how much paste I am waste. I have also noticed that Prolimatech PK3 can get thick if the temp is in the low 60s Fahrenheit, so making sure PK3 is not too cold can help getting a thin even layer.
Some diyers are using stencils I believe. Reduces the waste even further, maybe less messy but I do not expect any difference in performance considering that polishing the heatsink surface made no difference and stock heatsink pastes perform just as well as PK3 for our application.
And finally, I have checked to see if increasing pressure on the COB affects the thermal transfer and in every test the result was negative. So no need for strong torque setting on the screws etc.