Topic: [NEW] Bitmain Announces Antminer A3 (Read 22370 times)

The chips in the Obelisk were designed with a backup algorithm from day one, the changes are not simply in software. Since the Obelisk shipped after nearly all other ASICs, it is extremely unlikely any other vendor has support for the algorithm changes.

okay  i am Sia Classic minen

which wall should I take?
the original is not working anymore!
on the original I still have one above, which broker can I trade the ....?
THANK YOU

Hi same situation here, I have 2 Antminer A3 colleting dust since 3 months ago.

Does anyone undestand how without changing the Obelisk machines, the pools ban the Bitmain and Innosilicon miners?

Is is really and mining algorithm algorithm change?

How different are blake2b vs blake2b-sia ?

I have been reading about the Obelisk SC1 ´knife´feature, that apparently switches the asics to an alternative mining algorithm, but it does need of a new software update... suspicious... You can read more here: https://siasetup.info/learn/obelisk

Are the Obelisk chips reprogramable like some kind of FPGA? If they aren´t the change should be small...  

How the Obelisk started to mine Blake2b-sia on the 1st November 2018? Did the Obelisk team deployed a software upgrade silently?

Look at the profitability on Obelisk SC1 on the 1st Nov 2018, it spiked to 100$/day. https://www.asicminervalue.com/miners/obelisk/sc1

In case of Obelisk has ASIC chips inside, the hashing core chip did not change, an the ´knife´at the end is only a software wrapper change on the controlling board, that could be ported to Bitmain controller boards also... I´m thingking as a simple of an ID or serial number check, or changeing the number of blake2b rounds before the result is sent to the pool.

Does anyone here has an Obelisk SC1 miner? Did you notice any hashrate change after 1st Nov 2018?


Other option is to mine other Blake2b based coins like:
 - SiaClassic https://classic.siamining.com/
 - SiaPrime (SCP) https://prime.siamining.com/
 - Hyperspace (XSC) https://hyperspace.siamining.com/
 - BitcoinX (BCX)

https://siamining.com/chains
https://poolexplorer.com/coins?order=height&algo%5BBlake2B%5D=on

The only thing that sia did, is fuckup a lot of miners that supported their network. Bitmain has their pennies safe, the miners lose. But: i speak for myself; i will not ever ever buy or support a miner for the sia network ever. If it was my call, sia may poof down to $ zero and disappear.

Hey guys,

Is there still any possibility to mine something? (not talking about elec issues)

I mean... SC time is over and nicehash is not acceptiong blake2b/sia.
I am really not talking about profitability now, I am just asking if there is still any possibility to use the miner for mining.

Any suggestions?

Cheers

pretty breaking news if you somehow have not heard and have any antminer a3 that you still even keep plugged in . .

David Vorick of Siacoin has announced the team has decided to "brick" the Bitmain Antminer A3s and Innosilicon S11 Blake2b Siacoin ASIC miners to allow their Obelisk Tech SC1 miners to be the only miners on their network. Official Post - http://bit.ly/2DWR2Ri

https://www.youtube.com/watch?v=kcAXIHQxYWQ

Is there anything to do with  Antminer A3 if you dont have free electricity


i have few antminers standing in my home and want to know if i could mine other coins or smth


or if is there any chance in future to use them because im about 30% ROI from them

Totally agree, it was a big mistake.
People who bought D3, A3, B3 from Bitmain should be regret doing that.
In my case, no more ASICs, never ever.
I would rather use the fund buy Bitcoin and Hodl.
Now the issue is what to do with these soon-to-be doorsteps (A3 and S11).
I wish some recycling company can buy those ASICs back - the aluminum cases, fans, control boards should still be re-useable.

i just demolished it by ripping a fan off in favor of one of my S9's...
A3 was a big mistake to buy, just like all other altcoin miners from Bitmain.

Just heard the news that the Sia Devs are going to do a Soft Fork to make sure that only the ASICs made by Obelisk can mine on the Sia blockchain, for a period of time.
https://docs.google.com/document/d/e/2PACX-1vSbeNaLNsGfK-R3qYeRFvtMCd8phUbnv6SQwniXngu12j_GveSZAFmX4d_5FpHAz7mWQJQkZD1y6sl8/pub

Which means all other ASIC miners, including the A3, would not work once that happens.
Although I guess most people have their A3s shutdown, other miners, for example, the Innosillicon S11 which has a hash rate of 4.23T, is still able to generate a good amount of SC each day.
I have not gotten my ROI for my A3s and S11, felt sad about it.
But what can I do about it? Learn a lesson and move on.

why you shutdown your rig?
You can make $1/day with your asic, haha 

This is pretty cool.
Making money by using the free and green energy.

yes I have excess electricity

its better to contact bitmain with contact form , with that he answer soon in 2 day . its better.

you run i on solar?

My device runs from 9:00 am to 5:00 pm solar power is heated to the 300 hz so around 680 w and 25% fan

Hi, I think you may want to chase them on the Twitter and other Social media APPs, and follow up with support emails?
I doubt they would read your message here.

I have bought Antminer A3, and it has a defect from the box! Chain #2 is not working! I have wrote to Bitmain 2.5 month ago, I have create a repair ticket but its status still uncollected!! About 80 days no answer from Bitmain! My ticket was opened 10.05.2018 now is 26.07.2018, still no answer from Bitmain! My ticket ID 03320180510213458255850f0F0t0617.
1) https://imgur.com/a/EkWN7mr
2) https://imgur.com/IInQjbz

Cannot agree more.
The Blake2B algo ASICs will be my last try for mining.
I am done with it.

at least one person that learned the lesson...you can only earn moiney with an asic if u get them very early...in best case before they get officialy shipped
just look for example at x11, sha256, scrypt that have been complete destroyed by asics