The Klondike has been finalized and is hashing. So, if the chips are pin compatible and package compatible, it should just take some minor tweaking to make it go.
However, considering that Avalon delays almost killed the Klondike to begin with, I doubt anybody in their right mind would trust Avalon...unless some real financial incentive was on the table, i.e. some chip discounts.
my understanding is that:
1) the klondike used hard-to-find/expensive components
2) the avalon gen2 chips may be the same size, but have a different pinout that likely requires a slightly re-traced PCB.
I dont have PCB experience, but have quality fab options available if there is a good simple design
Yes the PCB would need changes because the ASIC chips have some differences.
I would get a different power supply like this one.
http://www.lineagepower.com/oem/pdf/UDT020A0X.pdfLayout the board with all the chips together and not divided by the power supplies.
Probable use a PIC18 that has more memory and an easier USB bootloader.
times like this i wish i was an electrical engineer *sigh* - however i might suggest this power supply: Texas Instruments TPS53355 - i dont know how it compares in price, but it has a VERY small footprint (needs thermal vias), is 30A, and is what bitfury uses to run a 16-chip board near its maximum capacity. I imagine 16 avalon gen2 chips will also require close to 30A if running at higher speeds. Also, the component's output voltage is controlled by the value of a resistor linked to it, so changing the voltage from 0.8->0.9v for example is as easy as swapping in a slightly lower resistance or pencil modding.
also, can people start to get over the avalon hate? they seriously screwed people over (espescially anyone invoved in the K16 projects) by "losing" thier chips and slow hipping of batch 3. i get it. but now they have completed 1 (out of 3!) auctions to the satisfaction of bidders, and are selling and delivering currently stocked items for fairly competitive rates (3.5BTC for 110GH right now isnt bad, not enough to make me buy, but close)
