[Guide] Dogie's Comprehensive Bitmain AntMiner S2 Setup [HD]

[rileyminer]

Does anyone know if the BeagleBone Black in the S2 is stock ? (same as if you buy from another vendor)

Any hardware mods to make it force boot of the microsd instead of the onboard storage?

[oskuro]

How much does it cost powering 1 S2 / month? thanks

[dogie]

Hi, I just bought an s2 yesterday and was wondering if this was normal:

-919 gh/s at the pool (btcguild) 1000 gh/s at the unit
- 5.6% reject rate (difficulty 128)

Seems fine. Up the difficulty to 1024 though.

[dogie]

How much does it cost powering 1 S2 / month? thanks

728kWh. Usual price is about $0.15 per kWh, so $109.

[oskuro]

How much does it cost powering 1 S2 / month? thanks

728kWh. Usual price is about $0.15 per kWh, so $109.

ok thanks so much. Well, its 0.13 € here where i live, so that would be for 31 days, ~68 EUR / month.

Not bad.

And earnings for 1 month? If someone here already has S2 since 1 month, how much did you earn mining BTC / month? just to know.


If someone could also donate me an antminer S2 coupon for bitmaintech... My username is: oskuro

Thanks again

[dogie]

How much does it cost powering 1 S2 / month? thanks

728kWh. Usual price is about $0.15 per kWh, so $109.

ok thanks so much. Well, its 0.13 € here where i live, so that would be for 31 days, ~68 EUR / month.

Not bad.

And earnings for 1 month? If someone here already has S2 since 1 month, how much did you earn mining BTC / month? just to know.


If someone could also donate me an antminer S2 coupon for bitmaintech... My username is: oskuro

Thanks again

Its totally speculative. The mining speculation subforum can help with that.

[kano]

How much does it cost powering 1 S2 / month? thanks

728kWh. Usual price is about $0.15 per kWh, so $109.

ok thanks so much. Well, its 0.13 € here where i live, so that would be for 31 days, ~68 EUR / month.

Not bad.

And earnings for 1 month? If someone here already has S2 since 1 month, how much did you earn mining BTC / month? just to know.


If someone could also donate me an antminer S2 coupon for bitmaintech... My username is: oskuro

Thanks again

Its totally speculative. The mining speculation subforum can help with that.

The past isn't speculative at all.

From ~ 29-Apr to 5-Jun (3 diff changes) an S2 should have made ~2.07BTC

The future however ...

[dogie]

How much does it cost powering 1 S2 / month? thanks

728kWh. Usual price is about $0.15 per kWh, so $109.

ok thanks so much. Well, its 0.13 € here where i live, so that would be for 31 days, ~68 EUR / month.

Not bad.

And earnings for 1 month? If someone here already has S2 since 1 month, how much did you earn mining BTC / month? just to know.


If someone could also donate me an antminer S2 coupon for bitmaintech... My username is: oskuro

Thanks again

Its totally speculative. The mining speculation subforum can help with that.

The past isn't speculative at all.

From ~ 29-Apr to 5-Jun (3 diff changes) an S2 should have made ~2.07BTC

The future however ...

I assumed he was asking about the future, otherwise it wouldn't make sense.

[Truman]

ok I burned the image to a new microsd and got the same result
then when I tried to upgrade (Reinstall) the latest firmware from their support site (I tried the tar and the .sd) - I got this error:

(initramfs.bin.SD-20140410.tar)

System Upgrade Failed

mount: mounting /dev/mmcblk0p1 on /tmp/847.boot failed: No such file or directory umount: can't umount /tmp/847.boot: Invalid argument

I have the same problemwith one S2 now.
Has this been fixed anywhere?

[dogie]

ok I burned the image to a new microsd and got the same result
then when I tried to upgrade (Reinstall) the latest firmware from their support site (I tried the tar and the .sd) - I got this error:

(initramfs.bin.SD-20140410.tar)

System Upgrade Failed

mount: mounting /dev/mmcblk0p1 on /tmp/847.boot failed: No such file or directory umount: can't umount /tmp/847.boot: Invalid argument

I have the same problemwith one S2 now.
Has this been fixed anywhere?

I'm not sure what you mean by 'reinstall'. You used an image burner to unpack the image onto the SD, then what?

[Biodom]

ok I burned the image to a new microsd and got the same result
then when I tried to upgrade (Reinstall) the latest firmware from their support site (I tried the tar and the .sd) - I got this error:

(initramfs.bin.SD-20140410.tar)

System Upgrade Failed

mount: mounting /dev/mmcblk0p1 on /tmp/847.boot failed: No such file or directory umount: can't umount /tmp/847.boot: Invalid argument

I have the same problemwith one S2 now.
Has this been fixed anywhere?

my understanding that you should NOT just burn the image to microSD, instead you have to make the SD bootable, which is a process that takes 20-30 min-see bottom of page 86 on the main S2 thread for EXACT instructions. I did it and bootable microSD 'worked", but you will have to replace pools and also remove known_hosts file (for ssh access) as discussed on this thread.

[Truman]

How to update cgminer of the antminer s2?

[dogie]

How to update cgminer of the antminer s2?

Why do you want to do that?

[kano]

How to update cgminer of the antminer s2?

Why do you want to do that?

Because:
1) The version in there throws away valid blocks on p2pool
2) The version in there doesn't block the recent stratum redirect problem
3) The version in there passes all shares to the pool even if they are below target (I'm sure pools must hate the S2 due to the major increase in CPU requirements at the pool)
4) The version in there has the API set to W:0/0 so anyone with network access can change your settings/pool/username (and the web page doesn't let you fix that)
5) The version in there has a modified API with different field names to the standard API so anyone using other software that reads the API must get that software changed (or use a proper API version of cgminer in the S2 )
6) The version in there doesn't allow you to turn the beep off
.
.
.

I released a new firmware yesterday with current cgminer (which has new S2 support), but it has severe problems on p2pool.
So once I've sorted that out, there will also be a solution

[sjc1490]

Quick questions for those with S2's. If the power glitches or goes out neither of my2 miners will come back up when the power is restored. I have to unplug the miners and let them sit for a few mins before they will come back on. Is this a known problem with the psu? Thanks for any answers.

[Cryptus]

hi, I have question to S2 users: how much heat does it blow away with it's fans? I've heard it's easy to overclock it even without additional cooling, so it' shouldn't warm up much a small room in standard mode, right?

[kano]

hi, I have question to S2 users: how much heat does it blow away with it's fans? I've heard it's easy to overclock it even without additional cooling, so it' shouldn't warm up much a small room in standard mode, right?

I use mine as the lounge room heater since it's 65dB it's not too bad.
(room is ~ 8m x 12m)
It's winter here (though not that cold)
Room is 22C, outside is 14C
Most of that 8C is due to the S2.
(my only other 'heaters' are an Avalon140 running at 100 in the kitchen and an Avalon300 running at 200 in my bedroom, no normal heaters anywhere )

[dogie]

Quick questions for those with S2's. If the power glitches or goes out neither of my2 miners will come back up when the power is restored. I have to unplug the miners and let them sit for a few mins before they will come back on. Is this a known problem with the psu? Thanks for any answers.

It will be internal to the PSU, I've had it on lots of devices.

[Cryptus]

hi, I have question to S2 users: how much heat does it blow away with it's fans? I've heard it's easy to overclock it even without additional cooling, so it' shouldn't warm up much a small room in standard mode, right?

I use mine as the lounge room heater since it's 65dB it's not too bad.
(room is ~ 8m x 12m)

65db.. hm... quite significant level of noise, I thought it could work below 40dB.

It's winter here (though not that cold)
Room is 22C, outside is 14C
Most of that 8C is due to the S2.
(my only other 'heaters' are an Avalon140 running at 100 in the kitchen and an Avalon300 running at 200 in my bedroom, no normal heaters anywhere )

That's what I'm worring about... So it will definitely heat up a lot small 5m x 3m room during summer.

[Biodom]

hi, I have question to S2 users: how much heat does it blow away with it's fans? I've heard it's easy to overclock it even without additional cooling, so it' shouldn't warm up much a small room in standard mode, right?

My 8X12 "mining" room was heating up to 34oC, 92oF with 3 ants and one S2; I had to keep the door open and point the S2 exaust toward the door frame-it helped because at ~35oC s2 will shutdown sometimes. Air conditioner could not cope since it is 100oF outside, so equipment has to go (at least in part). looking forward to heating with miners in the winter and reducing the gas bill