ANTMINER S2 Discussion and Support Thread - page 187.

jjiimm_64

legendary

Activity: 1876

Merit: 1000

Quote from: Biodom on April 03, 2014, 07:14:23 PM

Wouldn't you be limited by the internal 1000W PSU? Replacing internal PSU with 1250w or 1350W might work for over-clock, but at $300-350 expense and loss of warranty, i suppose.

I wonder, why no more batches for both S1 and S2?

CRAP i wanted to by a shitload of S1's if the price came down just a little.

cxboyminer

hero member

Activity: 896

Merit: 500

Just saying to all the batch 2 customers...

SE Asia is having some weird weather, such as hailing and heavy thunderstorm for the last couple of days continuously. Your orders could be delayed.

Biodom

legendary

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Wouldn't you be limited by the internal 1000W PSU? Replacing internal PSU with 1250w or 1350W might work for over-clock, but at $300-350 expense and loss of warranty, i suppose.

I wonder, why no more batches for both S1 and S2?

1l1l11ll1l

legendary

Activity: 1274

Merit: 1000

Aaaaaaaaand here you go.

The Power supply keeps cutting out in 1 machine, I didn't have a spare PSU, so I removed 2 of the asic blades to bring down the power draw, we'll see if it stays alive tonight.

MrTeal

legendary

Activity: 1274

Merit: 1004

Quote from: klondike_bar on April 03, 2014, 06:31:46 PM

Quote from: MrTeal on April 03, 2014, 05:35:51 PM

I think overclocking is going to be extremely limited, with four TPS53355 per board, or one for 16 chips. On the S1, it's one for 8 chips.

Thats the detail I've been waiting for

*really hoping for a PCB photo still*

The S1 could consume around 45W per group of 8 chips overclocked (overclocking pushed the regulator right to its limits, but the real limiting factor was the voltage being set to 1.1V - some people have apparently pencil-modded the S1 to almost 215GH/~470W, or about 60w/8 chips)
45W/1.1V=40.9A on a 30A-rated component. (bitfury h-boards faced very similar amperage limits when overvolted around 0.95V)

Its likely these chips run at around 0.8V and 1000W/640chips is about 25W per cluster of 16. That leaves a LOT of headroom on the regulators, but some of this is lost to the difference in voltage (more amperage). 25W/0.8V= 31.25A stock.

Presumably these should be able to overclock without any issues from the regulator. I imagine all other components are beefy enough also. I imagine you will hit hardware errors at 15-20% overclock as with the S1. These may even be capable of up to 1.5TH is voltage was increased to ~0.9V

0.75V unloaded, so a little higher than that on the current. Still some room and I'd expect people should be able to get 20-40% overclocks, but not the 100+% ones we might have been able to do with 8 chips per vrm.

cxboyminer

hero member

Activity: 896

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They...look...awesome!!!

ak49er

sr. member

Activity: 672

Merit: 250

Buy, sell and store real cryptocurrencies

Quote from: ipxtreme on April 03, 2014, 10:17:52 AM

Dumb UPS. Last night routed my package from Alaska to Kentucky and I am in California. Delayed 1 extra day. Was ready to un-box today.

I live in Alaska and they arrive in Anchorage from China in the afternoon, then get sent to California, and back to Anchorage overnight, to be delivered to me the next day. I just received notification that there's been a flight delay and my latest S1 is in Anchorage and will be delayed. And I'm thinking why not just send it down here then and have it arrive tomorrow as expected, can't you read the address?

MrTeal

legendary

Activity: 1274

Merit: 1004

Quote from: abracadabra on April 03, 2014, 06:28:19 PM

Quote from: MrTeal on April 03, 2014, 05:57:50 PM

Well, mine won't connect at 192.168.1.99, and according to an IP scan there's nothing from 1.1 to 2.254
My laptop detects the board and the lights on the BBB work, so it doesn't appear to be a hardware error.
Did anyone else get a unit with a different IP?

"My laptop detects the board"

What do you mean by that?

Check all internal connections. I had loose boards, the cable to the display was disconnected, and the internal ethernet cable was not completely seated to the panel jack.

I mean that instead of getting a cable unplugged message like you do when the unit is on, it shows it's connected to an unknown network.
Strangely, sometimes if I power cycle the unit it will connect, and sometimes no lights on the BBB's MagJack come on and nothing is detected.

Syke

legendary

Activity: 3878

Merit: 1193

Quote from: jjiimm_64 on April 03, 2014, 06:29:59 PM

what the heck is the password.. root root will not let me in

Try:

Quote from: abracadabra on April 03, 2014, 03:54:24 PM

ssh login is root/admin

klondike_bar

legendary

Activity: 2128

Merit: 1005

ASIC Wannabe

Quote from: jjiimm_64 on April 03, 2014, 06:29:59 PM

what the heck is the password.. root root will not let me in

Its an RPi in there correct? Should be

u: pi p: raspberry

klondike_bar

legendary

Activity: 2128

Merit: 1005

ASIC Wannabe

Quote from: MrTeal on April 03, 2014, 05:35:51 PM

I think overclocking is going to be extremely limited, with four TPS53355 per board, or one for 16 chips. On the S1, it's one for 8 chips.

Thats the detail I've been waiting for

*really hoping for a PCB photo still*

The S1 could consume around 45W per group of 8 chips overclocked (overclocking pushed the regulator right to its limits, but the real limiting factor was the voltage being set to 1.1V - some people have apparently pencil-modded the S1 to almost 215GH/~470W, or about 60w/8 chips)
45W/1.1V=40.9A on a 30A-rated component. (bitfury h-boards faced very similar amperage limits when overvolted around 0.95V)

Its likely these chips run at around 0.8V and 1000W/640chips is about 25W per cluster of 16. That leaves a LOT of headroom on the regulators, but some of this is lost to the difference in voltage (more amperage). 25W/0.8V= 31.25A stock.

Presumably these should be able to overclock without any issues from the regulator. I imagine all other components are beefy enough also. I imagine you will hit hardware errors at 15-20% overclock as with the S1. These may even be capable of up to 1.5TH is voltage was increased to ~0.9V

jjiimm_64

legendary

Activity: 1876

Merit: 1000

what the heck is the password.. root root will not let me in

abracadabra

hero member

Activity: 956

Merit: 1001

Quote from: MrTeal on April 03, 2014, 05:57:50 PM

Well, mine won't connect at 192.168.1.99, and according to an IP scan there's nothing from 1.1 to 2.254
My laptop detects the board and the lights on the BBB work, so it doesn't appear to be a hardware error.
Did anyone else get a unit with a different IP?

"My laptop detects the board"

What do you mean by that?

Check all internal connections. I had loose boards, the cable to the display was disconnected, and the internal ethernet cable was not completely seated to the panel jack.

kano

legendary

Activity: 4592

Merit: 1851

Linux since 1997 RedHat 4

Quote from: MrTeal on April 03, 2014, 05:57:50 PM

Well, mine won't connect at 192.168.1.99, and according to an IP scan there's nothing from 1.1 to 2.254
My laptop detects the board and the lights on the BBB work, so it doesn't appear to be a hardware error.
Did anyone else get a unit with a different IP?

If you have a linux device on the network when it boots:
sudo tcpdump -n -nn -l -i any arp

MrTeal

legendary

Activity: 1274

Merit: 1004

Well, mine won't connect at 192.168.1.99, and according to an IP scan there's nothing from 1.1 to 2.254
My laptop detects the board and the lights on the BBB work, so it doesn't appear to be a hardware error.
Did anyone else get a unit with a different IP?

jelin1984

legendary

Activity: 2408

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I think that for more nice and cool look
Spray black the silver fan protect

MrTeal

legendary

Activity: 1274

Merit: 1004

I think overclocking is going to be extremely limited, with four TPS53355 per board, or one for 16 chips. On the S1, it's one for 8 chips.

abracadabra

hero member

Activity: 956

Merit: 1001

Has anyone been able to get these to work on a network that's other than 192.168.1.*

faustus66

newbie

Activity: 30

Merit: 0

Well, sucks to be me, my 4 batch 1 units have only just left Shenzhen. Not happy considering they are now estimated to arrive the day before my batch 2 units are supposed to be sent out.....

Shenzhen, China    03/04/2014    16:50   Departure Scan
03/04/2014    15:46   Export Scan
03/04/2014    7:32   A UPS error has delayed delivery. We're adjusting plans and working to deliver your package as quickly as possible.
03/04/2014    4:42   Recent weather has caused delivery delays. Recovery efforts are under way to deliver your package as soon as possible.
Shenzhen, China    02/04/2014    2:35   Arrival Scan
02/04/2014    2:19   Departure Scan
Shenzhen, China    01/04/2014    22:32   Origin Scan
China    01/04/2014    8:37   Order Processed: Ready for UPS

1l1l11ll1l

legendary

Activity: 1274

Merit: 1000

Well, here we are

All three units would not power on, I had to remove the case and plug the controller card back in. Also, 2 had the ribbon cable to the LCD unplugged and one had the ethernet unplugged.

The one on top is missing screws, including screws for the bracket. It also has a nice dent on the bottom corner under the middle fan you can see. That was not caused from shipping, and was not caused by me.

Once everything was plugged back in (and the asic cards reseated as well) All is working fine. The middle one shut itself off after 5 min of running without the cover on, I'm assuming it was due to over heating. But we'll find out soon enough!

Topic: ANTMINER S2 Discussion and Support Thread - page 187. (Read 355820 times)