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501  Local / Biete / Re: Groupbuy - 50 Asic-USB-Erupter - atm: 618 USB-Asic-Erupters on: July 07, 2013, 06:20:26 PM
DHL, fedex,... machen vorverzollung, der zoll selbst muss es natürlich dennoch abnicken. express sendungen haben hier priorität.
an der haustüre wird lediglich kassiert.
502  Local / Biete / Re: Groupbuy - 50 Asic-USB-Erupter - atm: 618 USB-Asic-Erupters on: July 07, 2013, 06:00:35 PM
keine panik leute / do not panic guys: https://bitcointalk.org/index.php?topic=217104.msg2674991#msg2674991
503  Economy / Auctions / Re: AUCTION 10xAM USB + Anker hub. on: July 07, 2013, 03:06:46 PM
I dont think I have done anything wrong, You are oblivious to the use and meaning of a scammer tag and thrown it here seemingly randomly, Have I cost you anything? Have I ripped off someone? No.
I think there is a reason why the "edit" option isn't available in auctions subforum. you changed the terms after the first bid.
sell in "goods" if you don't want to make a binding auction!
504  Economy / Auctions / Re: AUCTION 10xAM USB + Anker hub. on: July 07, 2013, 01:55:34 PM
there is no hint about this in your OP, else I had sent you an offer too. a case for a scamtag!
...
It was on for a very short time, I see alot worse things going on here with out "scammer tag" posts LOL
and this is your excuse?!
505  Economy / Auctions / Re: AUCTION 10xAM USB + Anker hub. on: July 07, 2013, 10:01:08 AM
there is no hint about this in your OP, else I had sent you an offer too. a case for a scamtag!
506  Economy / Service Announcements / Re: [ANN] Bitfury ASIC sales in EU and Europe on: July 06, 2013, 10:02:27 PM
what about SEPA payment?
507  Local / Biete / Re: Bitfury strikes back! on: July 05, 2013, 12:58:32 PM
ist die seite vertrauenswürdig? es gibt nicht einmal ein ordentliches impressum, geschwiegedenn irgendeine art von AGB.
508  Bitcoin / Hardware / Re: [Work in progess] Burnins Avalon Chip to mining board service on: July 02, 2013, 08:09:06 PM

Wow, didnt know that its so featurerich... and all 4! power connectors are for cables that goes horizontal right? The left 3 for sure but im not sure with the right one. But i guess the second right one would be the one to use with a ATX-PSU.

Do you mean the green power connector goes with ATX? I wonder how to split power from ATX to multiple boards, like 14? What additional cables/connectors do we need?
No, the connector on the left side of the green connector. Im not sure what the green connectors cable would look like.
You would most probably split the power from a psu via y-cables.

Putting a heat sink on top will restrict the airflow over the pcb. The pcb has internal copper layers ('ground' is usually designed as a plane) which act as heat spreaders as well.

Do you say the other side of the pcb needs airflow too? I intended to force the airflow from the fans through the heatsinks only to maximize cooling. Do i have to rethink this?



The chips are designed to release heat out of the bottom, and putting a heatsink on the top of the chips can restrict convection and cause the chips to overheat.  The top of the board doesn't need additional air flow AFAIK.  The fan on the heatsink should create enough airflow around the board that all you need on top is convection for the other parts.  That is, don't cover it up, but no need for anything else.

So it doesnt need airflow but then you say the fan will make enough air. But what will happen when i force the airflow ONLY through the heatsink. You know like creating a tunnel. I would like to take 2 miners with heatsink and put them together tight with the heatsinks. Then put a fan on the side and somehow build a tunnel that only allows the air flowing between the ribs of the heatsinks. Im not sure yet what material would be best for this but i think it would greatly effect the cooling because i think otherwise most of the air is going useless the easier way.
So would that be possible or is it needed to put a little bit of the airflow to flow above the other sides of the boards.

I believe convection is enough for the top of the board.  Just don't plaster over it or cover it with a blanket.

I think the question is if a bottom side heatsink is enough for strong oc.
Maybe its a good idea to use a (bit more expensive) heatsink with a lot of more fins/surface and a 80/92 mm fan for each unit + top side heatsink (w or w/o fan). sandwiched. Smiley should be enough for 70 W.
air cooling is much cheaper than water cooling.
509  Bitcoin / Hardware / Re: [Work in progess] Burnins Avalon Chip to mining board service on: July 01, 2013, 12:03:35 PM
do the chips really transfer more heat into the PCB than to the upper side?

Yes, they are designed this way. And you shouldnt put a heatsink on top. Yifu said this will have a negative effect instead.
ok, thanks!
510  Bitcoin / Hardware / Re: [Work in progess] Burnins Avalon Chip to mining board service on: July 01, 2013, 10:54:54 AM
do the chips really transfer more heat into the PCB than to the upper side?
511  Bitcoin / Group buys / Re: [OPEN JIT deliv] Group Buy #7 @1/50 ASICMiner Erupter USB 1.01618 ea. @ 10 units on: June 28, 2013, 01:53:39 AM
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
put me in for another 13

cimpex; 13; 13.21034; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

total of 23, shipped together with the first 10.

//ahh damn, 10+ shouldn't be paid at once. sorry for that.
/// will order another 7 so i have a total of 3x10. I'm not sure about combined shipping at the moment. I will decide depending on the arrival of them.
cimpex; 7; 7.11326; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

Now I have a total of 30 sticks + I'm correct now with the terms in your OP.

13.21034 + 7.11326 = 20.3236 (= 2x 10.1618)

to summarize:
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
cimpex; 13; 13.21034; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
cimpex; 7; 7.11326; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

please ship them together. thanks!
OK
ahh, payment address from 2nd and 3rd is not the same as the first -> 2nd listed as ?? in OP.

cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
cimpex; 13; 13.21034; 1z7WpmmqAa2pFaw3ymvZPkpWPaF8qx4p9 - pm sig sent
cimpex; 7; 7.11326; https://blockchain.info/tx/d8dabdc3a642064d74e098d2f07bfe00aa8172ad44bda5a013316c25e9adbd12

do I have to sign all 3 of 3rd payment? feelin like an absolute noob at the moment.  Shocked
512  Bitcoin / Group buys / Re: [OPEN] JIT Group Buy #7 1030+ ASICMiner Erupter USB 1.01618 ea. @ 10 units on: June 28, 2013, 12:46:28 AM
looking like another fast and smooth group buy. great!
do we have already a total count of group buy 7?
513  Bitcoin / Group buys / Re: [OPEN JIT deliv] Group Buy #7 @1/50 ASICMiner Erupter USB 1.01618 ea. @ 10 units on: June 27, 2013, 12:09:48 PM
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
put me in for another 13

cimpex; 13; 13.21034; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

total of 23, shipped together with the first 10.

//ahh damn, 10+ shouldn't be paid at once. sorry for that.
/// will order another 7 so i have a total of 3x10. I'm not sure about combined shipping at the moment. I will decide depending on the arrival of them.
cimpex; 7; 7.11326; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

Now I have a total of 30 sticks + I'm correct now with the terms in your OP.

13.21034 + 7.11326 = 20.3236 (= 2x 10.1618)

to summarize:
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
cimpex; 13; 13.21034; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
cimpex; 7; 7.11326; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

please ship them together. thanks!
514  Local / Biete / Re: "MEGA HASH" Pre-Order Phase on: June 25, 2013, 07:59:47 PM
ahh investment geheimnis gelüftet, war schon ganz neugierig. Cheesy
515  Bitcoin / Hardware / Re: [Work in progess] Burnins Avalon Chip to mining board service on: June 25, 2013, 07:52:15 PM
Quote
I`m wondering where can one buy those metal (polls) between the boards + fan holding parts.
this polls are called "brass hex standoffs".
516  Bitcoin / Group buys / Re: [OPEN JIT deliv] Group Buy #7 @1/50 ASICMiner Erupter USB 1.01618 ea. @ 10 units on: June 24, 2013, 08:12:17 PM
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
put me in for another 13

cimpex; 13; 13.21034; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6

total of 23, shipped together with the first 10.

//ahh damn, 10+ shouldn't be paid at once. sorry for that.
/// will order another 7 so i have a total of 3x10. I'm not sure about combined shipping at the moment. I will decide depending on the arrival of them.
517  Bitcoin / Group buys / Re: [OPEN JIT deliv] Group Buy #7 @1/50 ASICMiner Erupter USB 1.01618 ea. @ 10 units on: June 24, 2013, 02:31:37 AM
cimpex; 10; 11.1618; 1DDBJr83XGhwXXjo6AVLVTF6C5A2xyDrm6
518  Bitcoin / Hardware / Re: Block Erupter USB Sales [New Sales Policy with New Price] on: June 23, 2013, 09:04:22 PM
what about a new price for the blades?
519  Bitcoin / Hardware / Re: [Work in progess] Burnins Avalon Chip to mining board service on: June 23, 2013, 09:00:36 PM
are the chips cooled directly or from the backside like an AM Erupter USB?
520  Local / Biete / Re: Community Mining - Bitfury Asic Miner 120GH/s --> Get the last 40 Shares soon! on: June 23, 2013, 08:46:07 PM
falls jemand shares loshaben möchte -> 1,30
für jene die bei 1 gekauft haben, sind das gleich einmal +30%. Cheesy
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