[NEW] Bitmain Announces Antminer A3

[cashen]

I believe 3 phase 220 is the most efficient form of power- I believe its best for mining.

Umm no...tell your electrician you want 1 phase 220v. 3 phase is completely different and not compatable with 220v psu.

There is no 220v in people's homes. The electrician will probably look at him like he has 4 heads.

It's 240v split-phase. 2 hots + 1 ground from a 2 pole breaker (and grounding bar). Each hot is 120V 180 degrees out of phase. When one hot is +120v the other hot is -120, the difference is 240v.

Exactly, and if you do not have empty space in your breaker box to add tandem breakers for 240 you cannot run it. Very likely you wont, which would mean you need to "upgrade your box capacity" so the electrician can install those tandem (2 hots ) breakers to create a 240 line. Whole new breaker box, breakers, wiring and receptacles.

Or you can just DYI and run some 12 gauge wire to some existing rarely used breakers that are on different bus bars

Don't do this.

[johnny_blaze]

that is very nice you guys are setting up rigs and etc. for A3.
but don't you think that A3 will be profitable only for 1-2 month max??
based on my assumptions on evolution it's going to be 100$/day already next week...
and 50$ mid of Feb.
even D3 was positively mining for much longer time...

any thoughts or assumptions...

this really bothers me as i'm also waiting for A3 arrival next week...

maybe new coin with blake2b algo will be launched? who knows?

otherwise it's gonna be expensive heater very soon

and bitmain probably doesnt' care too much...

please, somebody cheer me up! 

[Dragstar]

that is very nice you guys are setting up rigs and etc. for A3.
but don't you think that A3 will be profitable only for 1-2 month max??

I think you meant 1-2 days

[rummy]

things seem pretty steady right now, since the short crash yesterday. Here's a snapshot of my 24 hour stats at siamining, you can see when i plugged in the second miner is when the crash happened and it dropped to half the hash rate for 30 minutes or so then back to normal.

[johnny_blaze]

things seem pretty steady right now, since the short crash yesterday. Here's a snapshot of my 24 hour stats at siamining, you can see when i plugged in the second miner is when the crash happened and it dropped to half the hash rate for 30 minutes or so then back to normal.


https://farm5.staticflickr.com/4670/38995911495_9e7c821183_k.jpg

does this mean that difficulty will not grow like a red-giant planet before explosion?

[rummy]

right, difficulty will increase till all sold miners on online then you should see steady hashrate/rewards till next batch is released.

[johnny_blaze]

right, difficulty will increase till all sold miners on online then you should see steady hashrate/rewards till next batch is released.

thanks,

is it somehow connected to recent Sia hardfork on 139000 block?
https://www.reddit.com/r/siacoin/comments/7rz606/update_on_the_block_139000_hardfork
because they are also mentioning the difficulty adjustment

[johnny_blaze]

digmar12 9 points 3 days ago
Unfortunately, this will only benefit the A3 miners. They will have a nice low mining difficulty just when they are plugging in their machines.
what benefit digmar12 is talking about? 

[Chan8]

i'm selling a3 if anybody is interested.

https://bitcointalk.org/index.php?topic=2822606.0

[dlezama]

Switch pools , Sia Devs are at war with Bitmain , just like Dash

I'm on siamining... what other pool do you recommend?

Siamining has remained completely out of all this soft fork shit show. I'd stay there.

[edge10]

anyone have a guide out there on how to connect the APW3++ to the miner?

The PSU has 10 heads. 2 groups of 4 and 2 individuals.

 

[rummy]

As the difficult goes up the rewards go down. There is only so many siacoins rewarded a day and it has to be split between all the miners.

There is so many siacoins per block mined and it changes over time.
 
http://siapulse.com/page/market

[edge10]

anyone have a guide out there on how to connect the APW3++ to the miner?

The PSU has 10 heads. 2 groups of 4 and 2 individuals.

 

Every video or tutorial I've found skips right over this. I'm begining to suspect this doesn't matter? just connect all 10 connectors and go?

[rummy]

Doesn't matter just make sure that all ten are connected, i usually have a certain way of doing it as you have to have it turned a certain way for the length of the cords to work properly as it sits next to the miner, usually with the plug outlet facing the front and on same side as the control board plugin.

It does matter which way they snap in though, notice a little clip like thing on one side, you have to match those with the miner, when done right they will snap in place and then you have to squeeze them to get it to release.

[SWA_HD]

ANY source to A3 firmware. Sadly after crashing need to flash my miners.

Would be grateful for support and assistance. Currently my two miners gives my total of 800Gh with only total 3 boards working

[SIN3R6Y]

Anyone else notice their A3 running pretty hot on the chip side? Mine was approaching 90C on one board, had to go in and manually set the fans to 100%. Now running low 70's. This is with 70F ish ambient temps. These run quite a bit hotter than my L3+'s it seems.

[ThunderCatSteve]

things seem pretty steady right now, since the short crash yesterday. Here's a snapshot of my 24 hour stats at siamining, you can see when i plugged in the second miner is when the crash happened and it dropped to half the hash rate for 30 minutes or so then back to normal.


https://farm5.staticflickr.com/4670/38995911495_9e7c821183_k.jpg

Hopefully there is a proof that shows the real work that the Bitmain Antminer A3 does, and based on this screenshot it means that 14000 SIAcoin is around 566 USD which is really really good, and I think that you will reach your ROI in few days (or within the first week, most likely).
I missed the A3 Antminer and I still can't find anywhere to buy it, I understand the sellers that don't want to sell because they are loosing too much by selling the mining rigs, but I have a feeling that the mining thing in SIA will not have this high reward for a long time because the hashrate difficulty will be increased this year and the difficulty will be increased exponentially.

[rummy]

Mines running pretty cool and I upped the frequency from 600 to 625 so getting around 867 GH/s - chip temp around 72 for high but outside air is good and cold as im up north

I'll be back in a bit I have to go walk my dog now

[Boneyg001]

Mines running pretty cool and I upped the frequency from 600 to 625 so getting around 867 GH/s - chip temp around 72 for high but outside air is good and cold as im up north

How did you set up the miner pools?

[Darknicks]

Yeah, dedicated circuit is not the issue. APW3 not able to provide anything more then 1200 W on 120 V is the issue. Thats why I am planning to use APW3 and another EVGA  750 W PSU to power a single A3

Actually, I'm doing fine with only 1 APW3++ with the Antminer A3 on 120V.
Right now is consuming 11.54 AMPS and 1337W.
No issues at all.

https://i.imgur.com/iyhqzKO.jpg