Get rid of terrible thermal pads with this innovative Greek product

[goodpsusearch]

http://www.computer-systems.gr/en/products/k5-pro

I use it without problems till now.

i would like to read a review online for K5 Pro, comparing it with several thermal pads.

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

i am using that for the last 3 months, so far so good.


Just have concerns regarding long term behavior and the poor "package" that reflect most likely low grade industrial facilities

we dont apply for more than 0,5mm gap, even if doesnt take thermal pad we apply in some reball cases becuase the chip gets unbalanced (dont remenber the right word atm)

[stj]

Re: Get rid of terrible thermal pads with this innovative Greek product

so where do you buy it?

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

ooo forgot to mention

in a 0,5 mm gap we have similar performance of an 5W/mk laird pad so again stays a bit far from announced, so we will keep on testing.

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

http://www.ebay.com/sch/m.html?_nkw=...ems.gr&_sop=15

I ordered a pack of 3

Available also: http://www.amazon.com/viscous-therma.../dp/B00K04D3UK

[Th3_uN1Qu3]

Re: Get rid of terrible thermal pads with this innovative Greek product

I've noticed it a while back but seemed overpriced. Copper pads and MX-4 ftw.

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

so where do you buy it?

all mighty ebay (first sample was sent by a friend from greece)

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product



send a sample .... to propper crosscheck:

Thermal conductivity: 0.587 +/- 0.001 W/m/K
Thermal diffusivity: 0.333 +/- 0.003 mm2/s
Volumetric specific heat: 1.76 +/- 0.02 MJ/m3K

was analysed on this

http://www.hotdiskinstruments.com/pr.../tps-3500.html


the writen report to me was "do not use this above 0,3mm".

I Am waiting for the results on laird 0,3mm to compare.

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

I can't trust something like that so easily. If it was so simple to measure thermal conductivity don't you think there would be comparison charts all over the internet with stated and real value of every thermal paste?

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

I can't trust something like that so easily. If it was so simple to measure thermal conductivity don't you think there would be comparison charts all over the internet with stated and real value of every thermal paste?

Hi
what we can't trust for sure is the 4w that they announce, by other hand i am waiting for results on the laird thermal pad which will be comparative directly to the test done on this paste.

The reason i pursued this test was because i wanted to know if i apply or not for resale of this product in iberia... we are talking about a lab in UK that sells lab equipments for industry, lots of €€€€€ each equipment probably that's the reason why you dont see charts over internet and everyone announce whatever it wants.

ps. there are charts about thermal behaviour of materials this compounds are simply a mix of it.

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

I agree with you. Those numbers are 99% marketing and only 1% truth. What I am trying to say is that when you buy this product you don't care about ground breaking performance, you just want to solve 2 problems:

Cheap thermal pads applied from factory that dry and break resulting in IC overheating and failure.

Low thermal conductivity right out of the box, that is going to be an aging factor for bga ic.

So, if that viscous thermal paste doesn't dry and deteriorate with time (no-one can say for sure) and has a performance even hardly better than factory applied pads then it's perfect for me.

ps: I've ordered and tried Phobya thermal pads with 7W /mk and used them in laptop gpu. I was not satisfied with the result, still it wasn't even remotely close to designs that use thermal paste instead. Not to mention it was insanely expensive.

[stj]

Re: Get rid of terrible thermal pads with this innovative Greek product

if you want pads, contact Kerafol or Bergquist, they are the experts.
http://www.kerafol.com/en/thermal-management.html
http://www.bergquistcompany.com/ther...ials/index.htm



this page does not inspire confidence that they even make anything!
http://www.phobya.com/en/company.php

[mockingbird]

Re: Get rid of terrible thermal pads with this innovative Greek product

I've seen (and bought) Chinese thermal paste with an incredibly high W/mK rating. But if it were really that good, it would cost as much as Shin Etsu's highest prices stuff.

Same with this Greek product. It's been around for a while, but I never took their W/mK rating seriously. It's a great idea, but there's no way they're getting that kind of performance for what they're selling it for.

The problem with Laird pads is that you don't always know the correct thickness that you need. And Th3_uN1Qu3's copper shim method isn't always possible (like rs232killer points out). Sometimes the chip is uneven and a copper shim would leave a small gap because of this. Yes, you can compensate with the thermal paste you're applying on both sides, but only to a certain extent.

[stj]

Re: Get rid of terrible thermal pads with this innovative Greek product

just because you make a good product does not mean you have to rob the customer!

if a compound is based on carbon or graphite or berylium - hell even if it's based on silver, it should not cost more than gold by weight!

[mariushm]

Re: Get rid of terrible thermal pads with this innovative Greek product

I disagree.
It could be that the product is extremely hard to make in volume (or it's very hard to scale up production), or maybe there's a huge amount of energy required to produce it, or the process takes a lot of time. It could also be that it took a huge amount of work to make it (in case of niche software, maybe it took thousands of man hours to make it and the wages of those programmers need to be recuperated from something sold in small quantity) All these can make the product more expensive.

Here's for example a food example, it takes about 12 days to cook several portions of this, so I think you'd be justified in charging much more than the raw ingredient price : https://www.reddit.com/r/FoodPorn/co...lowed_by_a_48/

But in this particular case, I agree with the people that don't trust the advertised specs. There's also the issue of stability of the composition in time.

It looks like a decent product but only time will tell if it's really good or not... and with such an unknown company you never know if they'll keep the quality and the manufacturing "standards".

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

The company is quite reputable here and the product is a result of a long research. That doesn't mean anything about its long time endurance of course. But there are no alternatives. Good thermal pads cost a fortune, and are not good enough in the first place. Not convinced about their durability too,

I haven't used copper shims yet. I ordered some recently and I am looking forward to conduct some tests to find the actual difference between thermal pads, K5 pro and copper shims.

stj:

Phobya is known between the overclocker community and their pads seem to be quite reputable. I don't care if they buy the pads from someone else as long as I know the product is among the best pads commercially available out there. Of course there are better but they are even more overpriced. Thanks but no thanks. I would rather use K5 pro unless it is proven that it's performing even worse than the thermal pads that come with laptops.

mockingbird:

You are right about the thickness issue. It is often critical to use the right thickness needed in a specific application. Even 0.3mm difference could result in 15 C temps increase!

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

Want to know what Asus uses for its laptops in place of thermal pads?

http://www.bergquistcompany.com/ther...iller-1000.htm



This research claims that K5 pro thermal conductivity is indeed 5w /mk

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

not discuting methodes of doing lab experimentes but thermal condutivity is a bit more complex than do it by samples and comparation over home made experiments whith some mid grade equations. (really they used a IR meter on that "abstract" to mesure temperature)

see the portfolio of the guys that tested k5 for me
http://www.hotdiskinstruments.com/

Its not rocket sience but i dont know how the hell they reached the 5w value, never the less the k5 paste is beahving relativly good on filling small gaps, there are many commercial thermal pastes that have a rather low thermal conductivity.

[goodpsusearch]

Re: Get rid of terrible thermal pads with this innovative Greek product

So, laird is a thermal pad brand?

[rs232killer]

Re: Get rid of terrible thermal pads with this innovative Greek product

hi
yes, they manufacture for several areas including aeronatical and automotive

ex.
http://www.lairdtech.com/products/tflex-700

products have certification btw