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81  Bitcoin / Hardware / Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! on: June 09, 2013, 11:51:25 AM
Test PCB layout with all above: http://imgur.com/TPcptbv



intron

Nice work intron. In this thread we talk about the final psu stage and chip itself, this is somehow wrong approach cause if we think about for the lowest parasitic parameters of the circuit without knowing the main power supply with its voltage stabiliser we can make them oscillate and emit noises because of the to low z load, so it will be good to discus also a simple power supply for a single chip. Your desing is good for cooling as you have mentioned above, if we want to acheave some better parameters we can stack bypass capacitors one on top of the other but this technique will again affect cooling performance I think that your pcb is quite good if we think just for powering up the chip and measure some parameters it will give as enough knowledge for further development.
82  Bitcoin / Hardware / Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! on: June 08, 2013, 05:54:01 PM
You can order experimental pcbs with cooling pads such as http://www.ebay.com/itm/PCB-adapter-for-QFP44-or-QFN44-package-/161025491663?pt=UK_BOI_Electrical_Components_Supplies_ET&hash=item257dde02cf .
I am planing to order my pcbs at the local pcb assembly factory to make accurate testing, cause testing with long wires and no pads under the chips will give a lot different operation results from the real pcb working enviroment.

About the cooling wire that you plan to add solder to the chips pad it is better to be added first cause it will need a lot of heating and can resolder the other wires, once the big wire is soldered it will be even easirer to solder the others cause this wire can also act like stand.
83  Bitcoin / Hardware / Re: [ANN] Bitfury is looking for alpha-testers of first chips! FREE MONEY HERE! on: June 08, 2013, 04:46:58 PM
Nice work, I am in for testing, pm sent.
84  Bitcoin / Hardware / Re: [ANN] Eastern Europe , Bulgaria Klondike assembly/Платки имонтаж на Авалон чип on: June 02, 2013, 10:24:32 AM
Prices of Marto are the best one. Bulgaria is well known with their profecionall PCB manufacturing used from the Hi-end companies, I am shure that products of Marto will be with outstanding quallity.
85  Other / Beginners & Help / Re: Which OS is the most secure? on: May 31, 2013, 08:28:27 AM
Keeping your coins on a flash drive seems more secure.
86  Other / Beginners & Help / Re: What's your Mhash/s? (Pissing contest here) on: May 31, 2013, 08:24:17 AM
I got 980mh/s with two pieces 5850 and one piece 5830.
87  Other / Beginners & Help / Re: Alt-Coins on: May 31, 2013, 08:23:19 AM


I think that no one is buying it.
88  Other / Beginners & Help / Re: Say Hi on: May 31, 2013, 08:07:18 AM
Hello from Bulgaria.
89  Other / Beginners & Help / Re: CUDA Optimalized BTC miner for NVIDIA cards on: May 31, 2013, 08:04:41 AM
With this miner I manage to get from my GTX480 from 110 till 140 Mh/s at default, thanks. 
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