ANTMINER S2 Discussion and Support Thread

[Abraham Lincoln]

Do you guys take pennies?

[BoJaques]

Having issues with my S2 B3.     Since I got the unit, it has never run stable @ 1Thz.   

It may run for a while at 1 Thz, but then I will notice the speed decrease anywhere from 700-900 ghz and will have boards xxx or ---- on the miner status page


1.   It is not always the same boards that error out.  Totally random.
2.  If I power off, then right back on it will occasionally (1 out of 3 times) go back to full speed.
3.  After an hour, sometimes after 6 hours I will check it again and the speed will have dropped again with different boards xxxx out
4.  I replaced the power supply with a thermaltake 1200 watt, no change
5.  Moved around to different circuits in my house...nothing.
6.  Currently I am running 9 boards and I have no errors, but 850ghz.

Anyone else have similar issues?   I have tried working with Bitmain by email but have gotten poor service.   Guy keeps asking me to shuffle around the boards, when I don't know which board is bad because every time I restart it is a different set of boards that errors out. 

Any help would be appreciated!

[edgar]

Do you guys take pennies?

pubes?

i has got millions..


@BoJaques - i have mentioned this in 2-3 threads now, yes i have a similar experience with my B4

my B3 with OCZ1000w psu sits at 1xxxGH all day

my B4 with enermax1000w sits around 9xx

by 'B5' (actually i think its an old B3, no metal plate, no foam) with enermax1000w & only 9 blades has settled around 89x

and just for clarity - i can NOT access 'Miner status' NOR 'Miner Config' without pulling the ethercable (i tried for 18 hrs to explain this to bitmain yesterday)

and checking the 'miner status' when its not mining is pointless!

Very Poor Service/Support , although he does appear to be 'trying' - i just received the shipping label to return the DOA board...

[dropt]

Having issues with my S2 B3.     Since I got the unit, it has never run stable @ 1Thz.   

It may run for a while at 1 Thz, but then I will notice the speed decrease anywhere from 700-900 ghz and will have boards xxx or ---- on the miner status page


1.   It is not always the same boards that error out.  Totally random.
2.  If I power off, then right back on it will occasionally (1 out of 3 times) go back to full speed.
3.  After an hour, sometimes after 6 hours I will check it again and the speed will have dropped again with different boards xxxx out
4.  I replaced the power supply with a thermaltake 1200 watt, no change
5.  Moved around to different circuits in my house...nothing.
6.  Currently I am running 9 boards and I have no errors, but 850ghz.

Anyone else have similar issues?   I have tried working with Bitmain by email but have gotten poor service.   Guy keeps asking me to shuffle around the boards, when I don't know which board is bad because every time I restart it is a different set of boards that errors out. 

Any help would be appreciated!

Does your unit have the extra caps soldered on?  Check the Bitmain site for the documentation addressing a similar issue.

[BoJaques]

Does your unit have the extra caps soldered on?  Check the Bitmain site for the documentation addressing a similar issue.

My unit does not have the caps soldered on...Is that something that I was supposed to receive when i ordered the unit or order separately? 

[edgar]

BoJaques - the 'newest' rigs /blades come with 4 extra caps on each blade.

whereas older ones do not have these.

im not sure what they do as they seem to function even when broken and or snapped off.


UPS does not recognize the tracking number sent by bitmain and are unable to assist in any way until they have the correct information.


guess it means more waiting or paying for it to be shipped myself!! (where its anyones guess if they will collect it/acknowledge it)

and all the while he sits with thousands of blades unwilling to replace a single DOA blade until 'we get back DOA board first'....

[kbiteroner]

I have some S2 Coupons valid 11 June.
Asking .2BTC each. Or make me an offer.
Again these will save you $400 off each S2.

0.2BTC=$130

400-130=270
these will save you $270 off  each one S2.

Today I bought one of S2 without the coupon.

I have also written make me an offer.

[edgar]

Quote from: edgar on Today at 00:27:55

can you tell me what the capacitors actually do?

do you think there is any risk of fire??

Hi edgar,
Relax, if it is wokring normally now, should not bring any bad results, the worst case is that the miner runs with less than 1 Th/s.


apparently the risk of less than 1Th/s is worse than the risk of fire/explosion...

and now it seems i may be back on the ignore list - UPS cant accept the package with the label Bitmain provided and he is yet to provide updated info despite being requested over an hour ago

[dropt]

Quote from: edgar on Today at 00:27:55

can you tell me what the capacitors actually do?

do you think there is any risk of fire??

Hi edgar,
Relax, if it is wokring normally now, should not bring any bad results, the worst case is that the miner runs with less than 1 Th/s.


apparently the risk of less than 1Th/s is worse than the risk of fire/explosion...

and now it seems i may be back on the ignore list - UPS cant accept the package with the label Bitmain provided and he is yet to provide updated info despite being requested over an hour ago

Educated guess: the caps are for reducing ripple voltage/noise in the switching dc/dc regulators.  The chips may flake out but it's not going to catch fire and/or blow up if they're not there.

[edgar]

Thank You Dropt!

how hard was that??

I have tried calling the telephone number provided  by Bitmain - the 1st timeit was answered but only heavy breathing/silence.

subsequent calls have been left to time out or purposefully ended without answering.

if anyone else is struggling to contact them, +86 151 124 53849 is the contact number that will more than likely not be answered.


BITMAIN - are you too busy to reply or merely ignoring my emails, PMs & telephone calls??

why would you provide UPS shipping information that UPS themselves cannot identify or accept??



The way this is going, it will be another 7-10 days to get this simple, single blade replaced.... what kind of service is this?

[taipo]

What time was it in China when you rang?

[mdude77]

Having issues with my S2 B3.     Since I got the unit, it has never run stable @ 1Thz.   

It may run for a while at 1 Thz, but then I will notice the speed decrease anywhere from 700-900 ghz and will have boards xxx or ---- on the miner status page

What pool are you using?  I have a similar problem when using it on p2pool, except it's always well below 1th/s, and seems to decrease as time goes on.  BTCG rejects 30% of the work of one of my S2s.  Eleigius (through a stratum proxy) works best so far.

M

[BoJaques]

Having issues with my S2 B3.     Since I got the unit, it has never run stable @ 1Thz.   

It may run for a while at 1 Thz, but then I will notice the speed decrease anywhere from 700-900 ghz and will have boards xxx or ---- on the miner status page

What pool are you using?  I have a similar problem when using it on p2pool, except it's always well below 1th/s, and seems to decrease as time goes on.  BTCG rejects 30% of the work of one of my S2s.  Eleigius (through a stratum proxy) works best so far.

M

Currently using Bitminter.  Was on Ghash for a while but speeds were even lower there.  I have had better luck with Bitminter than btcguild and ghash.

Pulled a board out this morning and hasn't flaked out on me yet.  Running around 850 right now

[BITMAIN]

Hi edgar,

In our previous communication, we agreed to RMA and guided you how to ship back the the issue hash board to us. Both shipping label and UPS account are available for global customers. We even traced the the track # in the shipping label we offer you, which is showed 'valid' on UPS page, please call local UPS and try it again.
We will try our best to support you to fix your problems.

By the way, S2 will not fire if it is just missing capacitor, but it is true that the hash rate will be lower than 1Th/s if one board is not wotking normally.

[crafty]

Appreciate if someone please spare a coupon for AntMiner S2 Batch 4.

My BITMAIN name is sarang23

Thanks in advance.

[dulac97]

Appreciate if someone please spare a coupon for AntMiner S2 Batch 4.

My BITMAIN name is sarang23

Thanks in advance.

Check your pm

[BITMAIN]

New price for AntMiner S2 1 TH/s Miner Batch 4: 2339 USD each one, shipping cost included.

[BITMAIN]

New price for AntMiner S2 1 TH/s Kit: 2207 USD each one, shipping cost included.

[Visesrion]

Well, so I am having issues with my B2 unit 
From time to it usually powered off itself and I have to open, take the click out and put back in and everything works ok for some time. But today it happens like every 20 minutes or so.
All the asics works ok and I have no further problem, so I guess my power supply is dead yes ?
Does Bitmain provides a new one ?

[edgar]

Hi edgar,

In our previous communication, we agreed to RMA your DOA board and guided you how to ship back the the issue hash board to us. Both shipping label and UPS account are available for global customers. We even traced the the track # in the shipping label we offer you, which is showed 'valid' on UPS page, please call local UPS and try it again.
We will try our best to support you to fix your problems.

By the way, S2 will not fire if it is just missing capacitor, but it is true that the hash rate will be lower than 1Th/s if one board is not wotking normally.

Many Thanks... UPS arrived at 1820 and collected the board.

I look forward to receiving a 'new' board in the coming week/s and some capacitors that i might 'fix' the rig myself as it is 'just missing capacitors', fingers crossed it will all go smoothly.

Some thermal paste would be appreciated though seemingly not particularly necessary according to whomever applies it in the first place. would you advise users to check and perhaps reapply correctly thermal compound to each and every antminer board/heatsink or was i merely unfortunate to have received 'one' such as in the image i sent to you?

if providing sufficient thermal compound is too much please let me know at your earliest convenience that i may order some out of my own pocket before the 'new' blade eventually arrives.

i shall assume you can spare a dozen assorted capacitors?

Your flippant 'by the way' clarification wrt the 'just missing capacitors' safety concern is not unappreciated, however other customers put my fears to rest hours previously for which i remain sincerely grateful for.