Topic: btcgarden-AM-v1 down to $0.53/GHs. In stock for international selling! (Read 162643 times)

At least they did not start a new thread for it. Gotta give them credit for that at least.

 You DO realise you were replying to a post that was almost *3 YEARS OLD*?

 Not quite a Guiness level "necro thread" but.....

I have 6 of the original hashing boards (no heatsinks) if anyone wants one for hobby mining or a collection

Seems to be the case, couple more years down the track. My question would be & is are there any chips available for this unit or something with same footprint & pinout etc. Have the master files for build but nothing else.

i think the company is now inactive in some way.

^I think two is the limit due to either the RPi or the number of IO lanes available - but am not entirely sure.
you should be able to find a compatible ribbon at most electronic supply houses such as a sayal or similar place. You could always buy a dozen 1-wire jumper pins and string it yourself.

has anyone figured out a way to make these units more power efficient? Its a shame that mine will likely turn off in a month from now - its the quietest miner I own and has never caused trouble to operate. I often think its not turned on because of the whisper fans and lack of blinking LEDs

Does anyone know where you can purchase more of the ribbon data cables, when I got my miners (from eBay) I didn't get any spares and I would like to combine 2 of my AM-V2's to use only one Raspberry PI instead of running them as separate miners. I have looked every where that I know of but have been unable to find them. I even tried to find the 8-Pin connectors (4x2) so I could make my own but I was only able to find 10 pin ones and those didn't work when I tried to just use 8 of the pins. I am looking to buy 5 or so that way I have some spares if needed. Right now I have 3 of the AM-V2's and will probably be buying some more soon and I don't want to have to have a PI for every one of them. Thanks in advance.
Another quick question, the max you can connect is 2 of the AM-V2's right? Or is it possible to connect 3 together and just change the WebGUI to 12 boards instead of 8 or 4? I haven't seen any where saying that you can do 3 I think 2 is the max but figured I would double check with the best.


Dogie, Keep up the great work on the setup guides, they are always my first place to go to when I get a new miner to setup. I'm about to setup a C1 with cooling kit and I will be using your guide. Once done I will be sending a little token of my appreciation.

Thanks again
Ryan

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seems odd that 5 boards would not work at all - are they powered by a seperate psu, or any other commonalities between them? One or two boards simply not working anymore would likely be an issue with the DC/DC regulator or the individual controller. But 5 board at once seems like a cascading issue across the boards to make them all stop.

if you have a multimeter check the voltage. look for 12V and ~0.8V presence from the inductor or capacitors. If either is missing it narrows down the problem

They just stopped working. I have quite a few of these units and I had one blade in a system that did the exact same thing. It just stopped working out of the blue. It does not hash when hooked directly to the pi on either cable connection. I just put it at the end of the system and run it with 7 blades. Sometimes, parts just fail.

Thank you for your input what I have done so far is I have tested each word individually and I also changed the number on CG miner to one board when I did it to make sure that they are getting the full hash unfortunately there are five boards that are just not hashing at all when hooked up and I have no idea what it could possibly be because it was running at 1.2 terahash for about three months nonstop. Now I have a 450 terahash machine. If anybody has any ideas I am very interested in hearing them.

Try changing the order of the ribbon cables, or plugging the pi it to unit 4 (with 5-8 chained to it) to see if the issue is in common or an error on board 4 meaning 5-8 don't communicate through it normally

I had 5 of the 8 boards suddenly just stop hashing and I am not sure why?? I have tried all of the boards and could only get three of them hashing..anyone got any ideas as to why?

depends on the regulator.

I tried to pencil mod the rockminer rkbox/r3 hashboards and the regulator setup on it did not allow for pencil modding in any of my attempts. The best I did was to determine a pair of resistors that must be simulateously modified to adjust voltage. Unfortunately, reducing the resistance of both via a pencil mod INCREASED voltage, meaning a decrease involves the more difficult task of increasing the resistance.

Havent done any experiements on the BTCgarden board, but schematics or at least identifying the regulator would give me a place to start. The risk to a single board is less than the risk of running 1.2w/GH for much longer

Yeah, I was wondering the same...mayhaps we can pencil mod these similar to the S1's or something!

would be nice, though i expect the housing doesnt cost much to produce, maybe just some shipping expense.

anyway to get a better power consumption from these? 1.2w/GH is becoming too much power usage for where i live, and I'd be happy to lose 25% of my hashrate in exchange for <1w/gh

I'd love to see whatever they're coming out with be a direct drop in / swap for the current systems. As in unscrew the old boards, swap the heatsinks to the new boards, and screw in the new ones.

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Will like to buy 2 more, but no stock.

The price is in $.
Btc is / 2 do you think BTCGarden must divide his price by 2 ?
I will like that too but I am not sure they think like you