der8auer ECC goes pro!

[der8auer]

I still have POM backplates if someone needs them If there are enough requests I will sell them again

Thanks Christian

[fuzz3l]

Good luck Roman and Keep pushing!

[Hiwa]

Very nice look pot roman.

[SF3D]

Nice on Roman!

Some critics for the design. The groove system and base size are not well balanced. I think you will not have optimal power handling / heat transfer with that design, cause you have thick base and relatively small surface area for ln2
Of course, I might be wrong, cause I have just seen these pictures, but not the actual product in my own hands.

That plastic mounting bracket is not what I would like to see in 2012. It is so last season and I think we had a nice conversation about them during Cebit

I like the fact that you choose grooves as well to your product. It is always better than just holes, but there is still some improvements you need to do in to rev4.

[der8auer]

Thx Pete!

Actually it performs realy nice. Don't forget: It's not a LN2 only pot like your design. It's also a pot which works realy good with DICE as I have a lot of customers who want to bench with DICE aswell.

The question is why do you want to see a aluminium bracket in 2012?

One of my first pots (pic taken early 2008)



So actually aluminium mounting is 2008 for me and not 2012 Also plastic is not just plastic I tested 4 different kinds of plastic within the years and this one is just perfect for containers.

Here you can see the same material (just different colour) after a benchsession with AMD CPUs - and you know this means full pot and -180°C. As you can see there is not much ice on the mounting bracket even when using these temperatures. That's because the of the different heat conductivity.

Pics taken by Ninjalane:






Compare to SF3D IP:




Heat conductivity:

Aluminium: 236
POM: 0,31

So the heat conductivity of POM is 760 times lower than aluminium. This means if you cool down your pot you don't wast energy (LN2) to cool down a thick aluminium bracket. During the benching you will always need more LN2 to keep your mounting bracket cold aswell. And you have ten times more ice around an aluminium bracket than POM.

About the conversation on CeBIT: I sold about 50 pots so far in the last years and 48 of them with POM bracket. I had huge complaints about aluminium brackets because of the ice everywhere so I changed it over 4 years ago. And so far nobody complaint about the POM bracket
The low heat conductivity doesn't only mean low cooldown - it also means it takes ages to heat it up. If you use a torch on your pot (and I hope you use it inside to heat up the pot and not the mounting bracket as you can see on the picture above) there is no problem if you hit the POM bracket. POM starts to get ductile at around 180°C. I tested it with my torch and even after one minute straight on mounting bracket I did not reach this temperature!
If you use the torch normal inside the pot it will never affect the mounting bracket.

[K404]

As you can see there is not much ice on the mounting bracket even when using these temperatures.

This is really important to me Different POMs/ "plastics" react a bit differently.... e.g.... nylon is terrible for condensation. POM is quite good. Some do not appear to conduct heat at all, but I cannot remember which exact structure that is. IIRC, it is quite "chalky"

[der8auer]

Would be interesting to know which one you mean exactly

Well "Materials" is part of my studies and we discussed about 40 different types of plastic. So I tested POM, PVC, PTFE and PUR.

PTFE, PUR and PVC have a even lower heat conductivity with about 0,17-0,25 but they are more ductile than POM which means if you put too much pressure on the mounting braket it can start to bend. This does not happen with POM so that's why I picked it

[knopflerbruce]

Is POM more expensive than the other options?

[SF3D]

Roman, I did not mean to insult your product anyway, as you know

If you insulate your pot properly with 1 sheet of toilet paper with flowers or heart shaped figures on it, there is no issue with aluminium bracket: http://hwbot.org/forum/showpost.php?...8&postcount=23
I have done 6 hour sessions without any issues and others have done the same

But, there might be issues if you don't know how to insulate. Many people will need to learn it during many sessions, so it might be problem for beginners.

Aluminium is my way to go. Better mounting and it wont take any damage, no matter what you do with it.

[der8auer]

@ knut: POM and alu are about the same price

@ Pete: Yea I know Never took it that way I agree that there is no issue with ice on the bracket but some ppl kinda think that way or just don't like the ice there.