[NEW] Bitmain Announces Antminer A3

[frands1]

Hi,
I connected mine on miningpoolhub and get that :

http://framapic.org/rjpU99olgTue/jEvzDKIl8PZf.png
How come Im only at 123 GH/s?

Go to miner configuration and click on the advance settings tab and then chose default from the drop down menu.

You're frequency is way too high

Ok thanks, it's better now, 329 GH/s in average. However, it is far from the  800 GH/s announced.. any idea how to get there? Should I just wait for the miner to slowly grow to 800?

It seems that avg, which means it's counting all the time you mined at 100 gh/s. If thats the case, it will increase with time

[1714865190]

1714865190

[1714865190]

1714865190

[1714865190]

1714865190

[paolinni]

Hi,
I connected mine on miningpoolhub and get that :

http://framapic.org/rjpU99olgTue/jEvzDKIl8PZf.png
How come Im only at 123 GH/s?

Go to miner configuration and click on the advance settings tab and then chose default from the drop down menu.

You're frequency is way too high

Ok thanks, it's better now, 329 GH/s in average. However, it is far from the  800 GH/s announced.. any idea how to get there? Should I just wait for the miner to slowly grow to 800?

check the ASIC# column, there should be 60 ASIC chips on each board.

It's possible one of your boards are dead or may just need to unplug and regplug your PSU cables

[SIN3R6Y]

If you're seeing much higher than 11A power draw at 120V, check your power cable, make sure it's not getting warm. One unit drew 14A on an 18 gauge cable, causing the cable to get a little warmer than i was comfortable with. Switched to a 16 gauge cable and it dropped to 11A and the cable stays cool.

Might sound silly. How does the AWG of power cable impact how much it pulls? Will 14 AWG be even better and will pull lower than 11 A?

Lets say you draw 1400W from the wall which at 120V is 11.6A. (1400W/120V=11.6A). But in this case the 18 gauge wire is too thin which is making it act as a resistor (which is why it gets warm / hot to the touch). Because the wire in this case is acting as a resistor it will drop some voltage under load. Let's say it drop's 15V making the line voltage at the miner 105V. The miner still pulls 1400W regardless (1400W/105V=13.3A). So the amperage went up to compensate for the drop in voltage and the wire / PSU gets hotter as they are dissipating that extra energy as heat.

This is why many recommend 240V, as 1400W/240V=5.8A. The energy consumption of 1400W is the same (actually a bit less as the PSU is slightly more efficient at higher votlages), but the amperage is much lower which means you can fit more devices on a single circuit.

Basically if your power cable is warm, you are dropping voltage and wasting electricity. Not to mention creating a potential fire hazard. For this miner i would say 16 gauge power cables are a minimum requirement at 120v. At 240V 18 gauge should suffice just fine.

[rummy]

Hi,
I connected mine on miningpoolhub and get that :


How come Im only at 123 GH/s?

Go to miner configuration and click on the advance settings tab and then chose default from the drop down menu.

You're frequency is way too high

Ok thanks, it's better now, 329 GH/s in average. However, it is far from the  800 GH/s announced.. any idea how to get there? Should I just wait for the miner to slowly grow to 800?

You have xx00 in your ASIC status section that means your boards-chains aren't working right, id try resetting from the front of the miner, something like a small pin to stick in and hold for 10 seconds and release.

When working correctly it will be all 000000 in asic status for all 3 chains

[kr1p]

Thanks a lot for your answers, it's helping.
Well now I have another issue, it seems the tab "miner status" doesnt show anything anymore when i click on it...
https://framapic.org/YuR729YQcbpc/rheIg0GxNH6m.png
Is it just the pool isnt configured well or something else? I m a bit worried i harmed the miner by putting the frequency to 750.
Thanks

[jstefanop]

Wow, Over 2200 new A3's went online in the past 24 hours !
Network went up from 500TH's 4 days ago to 2700THs..

difficulty is at 2.3T

Your looking at pool hashrate...total network hashrate is up to 3600 TH and its reaching parabolic growth right now lol. Looks like its going way over 10 Petahash.

[stugots2]

2 questions..

1. best pool for the A3 right now?  got ALL mine coming tomorrow

2. has anyone OC'd this thing yet? what are the options? and hows it work when you did?


Thanks guys

[rummy]

Thanks a lot for your answers, it's helping.
Well now I have another issue, it seems the tab "miner status" doesnt show anything anymore when i click on it...
https://framapic.org/YuR729YQcbpc/rheIg0GxNH6m.png
Is it just the pool isnt configured well or something else? I m a bit worried i harmed the miner by putting the frequency to 750.
Thanks

Go back to your system page and see what it says under hardware version?

Probably just your miner configuration settings are wrong?

[SIN3R6Y]

2 questions..

1. best pool for the A3 right now?  got ALL mine coming tomorrow

2. has anyone OC'd this thing yet? what are the options? and hows it work when you did?


Thanks guys

Pushed mine to 625mhz with no real gains. I think these things are being pushed to their limits with the factory clock. Tried 650mhz, started getting a ton of HW errors.

[wheelz1200]

Wow, Over 2200 new A3's went online in the past 24 hours !
Network went up from 500TH's 4 days ago to 2700THs..

difficulty is at 2.3T

Your looking at pool hashrate...total network hashrate is up to 3600 TH and its reaching parabolic growth right now lol. Looks like its going way over 10 Petahash.

just a typo... yes , I ment to write 3700TH , which doubled in 24 hours from 1800T to over 3600T , hence the over 2200 new miners that went online today.

Waiting to see how much this pushes too.  Would be nice if another coin/s used that algo to offset.  This is a race to the cheese if ive ever seen one

[jdbravo]

My antminer A3 arrived one hashboard dead .
1st time I plugged in,One blade is dead.
PLEASE see the picture.
http://fantom.tokyo/A3config.PNG
then
http://fantom.tokyo/A3ASICDEAD.PNG
and
http://fantom.tokyo/A31DEAD.PNG

so I switched 18pin cable connection 1and2 and still board1 is dead(this time board1 is chain2)
http://fantom.tokyo/A3changeconnect.PNG

So please give me advise:-(

Same happened to me with two different A3s. Did you solve the problem?

[SIN3R6Y]

My antminer A3 arrived one hashboard dead .
1st time I plugged in,One blade is dead.
PLEASE see the picture.
http://fantom.tokyo/A3config.PNG
then
http://fantom.tokyo/A3ASICDEAD.PNG
and
http://fantom.tokyo/A31DEAD.PNG

so I switched 18pin cable connection 1and2 and still board1 is dead(this time board1 is chain2)
http://fantom.tokyo/A3changeconnect.PNG

So please give me advise:-(

Same happened to me with two different A3s. Did you solve the problem?

That's just a dead board plain and simple. Aside from getting warranty work done on it there's not a lot you can do. Could be power circuity, and if your good with soldering iron you might be able to fix it. But i would not advise doing it while under warranty. I'd just get it replaced. Unfortunately profitability is going to be much less by the time you'd get it back. Personally i'd ride it out on two boards till the gold rush is over, then send it in.

[jdbravo]

Hi,

I received my A3 and I have only one board working! did you face that?

I'm having the same problem with two different A3s. Did you solve the problem?

[jdbravo]

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.

I had to do the same, other miners (L3+s) in the same place are working at 50's.

[LiteMine]

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.

I had to do the same, other miners (L3+s) in the same place are working at 50's.

Bitmain OC'd the shit out of these, just like the D3. Hopefully blissz will make firmware for the A3, he saved us with D3 firmware. It gives the ability to change voltage and customize each hash board with voltage & frequency.

[Boneyg001]

what is the best/most profitable pool?

[Marvell2]

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.

I had to do the same, other miners (L3+s) in the same place are working at 50's.

Bitmain OC'd the shit out of these, just like the D3. Hopefully blissz will make firmware for the A3, he saved us with D3 firmware. It gives the ability to change voltage and customize each hash board with voltage & frequency.

lol blitz got a cease and desist hes done making firmware

[eth_mining]

Just received the miner. It is freaking loud at my apartment. I am pretty sure someone is going to complain. I tried setting the fan speed to 70% but chip temperature is going beyond 90 C. What is the ideal fan speed and temperature guys? PCB is around 70 and chip around 100.. Is that too much?

[frands1]

Any rule of thumb to know how many HW errors are "ok", like per hour or day?
I have one board getting way more than the other 2,

In 3 hrs and 22 mins, 642 HW, the others 21 and 30

Thanks!

[mayne]

what is the max temp you guys would run the Temp(Chip) at?