ANTMINER S2 Discussion and Support Thread - page 142.

raskul

sr. member

Activity: 434

Merit: 250

Quote from: ?? on ??

Many Thanks to all who offered support.

Still not heard back from Bitmain wrt Dead PSU.

So i bought an 8 port ether switch, plugged that into my router now hashing fine with 9 blades between 780-971.50GH/s Max 62C so far but its only been running for 5-10 minutes

Still using the OCZ1000W PSU, stuck it back in the case with its inlet facing out & the case slightly ajar but i've ordered an add2psu and will use 2 650-750W PSUs when it arrives so i can put that 10th blade back in.

As addictive as GH are, i think ive had about enough.. but ive said that a lot.

Spondoolies do seem to be working overdrive to get a bunch of orders in but august is a long ways away.

Ooh - just touched 1040GH/s with 9 blades! (then dropped to 817 so make of that what you will.

Ed

glad you got hashing eventually Ed.

mattie

newbie

Activity: 23

Merit: 10

Quote from: peruana on April 18, 2014, 06:45:34 PM

Quote from: mattie on April 18, 2014, 05:04:54 PM

Quote from: ?? on ??

Quote from: philipma1957 on April 18, 2014, 07:58:12 AM

Quote from: mattie on April 18, 2014, 04:20:30 AM

Found my culprit with the faulty antminer.
Seems one of my slots doesn't report any temperatures when a module is running in it.
This makes the fans go haywire and probably trip a security thing in the antminer it self or the PSU

so running with 1 blade less works fine?

Yup no problems yet.. though missing out on some gigahashes now :/

On a side note found it not to be the slot it was mining in but one of the cards tripping the PSU protection.
It either looks like one of my miners needs more power then the power supply gives or one of the blades is faulty and tripping the surge protection.
I ordered a 1350W platimax enermax power supply to find out if this resolves it using all 10 blades
I have another antminer S2 which is running fine with the 1000W enermax powersupply but I think these 1000W power supply's are cutting it really close to max usage of the power supply and will probably end up frying it in the end.. not something I am looking forwards to.
On other thoughts I hate to spend another 250 euros to replace the power supply.

You say you have two units, have you tried one at a time by itself?

Yes one works fine .. unfortunately found the second miner off again this morning I was a bit presumptuous that my troubles where gone with this miner.
Will have to wait for my new PSU

1l1l11ll1l

legendary

Activity: 1274

Merit: 1000

Quote from: Zelek Uther on April 18, 2014, 04:32:51 AM

Quote from: ?? on ??

after 20 minutes cooling down (and changing S1 IP) reset buttin works...

will try again with stock settings & 1l1l1l1l1ls SD image

Off the bat its doing nothing,

Antminer S2
192.168.1.99
0GH/s
Max 0C

so its not hashing for 1l1l1l1l1l either....

im 24 hrs deep now with this fkn rig... not happy at all

So it doesn't work with 1l1l1l1l1l's SD image (unmodified)... that worries me. That image worked for me (and obviously 1l1l1l1l1l). Must be a piece of faulty hardware because we know that software image works.

A couple of shots in the dark:
1) Try running 1l1l1l1l1l's SD image on another new SD card (just to rule out the chance of a faulty new SD card).
2) Try running it with just one hashing card, to see if you can get anything hashing at all. If that works, build it up slowly one card at a time, testing each time that each additional card works. If one card doesn't work, try a different card and a different slot until you can get one card hashing. If you can't get even one card to hash then something central must be the issue: BBB, daughter-board that BBB sits on, backplane at the bottom...

Try replacing the internal ethernet cable. I had one unit with a poorly crimped end, and that machine was acting all sorts of crazy weird. replaced the cable, 100% running.

finlof

hero member

Activity: 630

Merit: 500

Quote from: philipma1957 on April 18, 2014, 11:55:52 PM

Quote from: finlof on April 18, 2014, 07:24:12 PM

another fairly cheap solution is to replace the power supply with something beefier. my personal recommendation (and what I did for myself) is to spend around $150 and purchase 2x of these 750w kits - http://www.gekkoscience.com/products/server_supply_breakout_board.html - and run them with power sharing pins and you have more than enough for the S2 (unless we figure how to overclock past 250mhz) and enough for 3 overclocked S1's. and if you have one of these power supplies go bad you can replace it for a cheap $25 from ebay. i keep an extra few on hand for myself anyway for rapid deployment for myself and customers. if you want more info on the maker of these you can read this thread - https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677

DISCLAIMER: I am in no way affiliated or compensated by sidehack for this recommendation. he has a decent product and i feel he should make money for his work and research.

EDIT: here's pictures of my setup
https://dl.dropboxusercontent.com/u/23772269/2x%20power%20supplies%20in%20tandem.jpg
https://dl.dropboxusercontent.com/u/23772269/top%20view%20case%20off.jpg
https://dl.dropboxusercontent.com/u/23772269/top%20view%20with%20case%20on.jpg

the math of pulling a blade is -100gh -100watts.

your 150 usd purchase cost more.

pulling 1 blade is the best solution . edit if btc jumps up in price your move was okay

nah i will resell this S2 next week. i will be using those PS's for future antminer S1's i order and resell, any coincraft 1TH units i order and resell. that PS setup was just an investment for my reselling.

raskul

sr. member

Activity: 434

Merit: 250

Quote from: philipma1957 on April 18, 2014, 11:47:30 PM

Quote from: rigidguy on April 18, 2014, 10:03:28 PM

Is it more worthwhile to buy this asic or buy BTC straight?

not the correct question.
...
so if you are in the usa...

perhaps next time you will be able to check the timezone of the poster before spewing out irrelevant assumptions and 'hardforking' over your glorious tax laws.

To answer the question; You can own bitcoin in a variety of ways, you do not need to mine at home; there are various cloud contracts offered these days, but please do some research before buying one of these. The same goes for mining, do research on the company and track record before putting money into a mining rig... don't listen to soothsayers and equally, forget what you hear from harbingers of doom. The choice is yours at the end of the day, one thing I will say though, mining is far more fun than just buying btc, however; I do both.
just - don't spend out more than you can afford to lose, as is the same with any trading stock.

best luck to you.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: finlof on April 18, 2014, 07:24:12 PM

Quote from: philipma1957 on April 18, 2014, 07:17:23 PM

Quote from: finlof on April 18, 2014, 06:56:48 PM

for those having power supply problems - I am interested what your room temp is at. if i understand correctly higher temps = lower efficiency so you cannot expect the power supply to perform the same at 60 degrees F (15.5 Celsius) vs 80 degrees F (26.5 Celsius). this also would make a difference as to where it is pulling air from (inside the case B2's vs outside the case B2's). i for one replaced mine about 2 hrs after receiving it due to the fact that i wanted to overclock it (if possible). but i did not have any problems with my unit using the stock PS with the room temp at 60 degrees F or below.

short term a cool room the psu will work. long term it is under sized.

be smart pull a blade all worries vanish. this may be the best solution for almost all owners of the gear.

another fairly cheap solution is to replace the power supply with something beefier. my personal recommendation (and what I did for myself) is to spend around $150 and purchase 2x of these 750w kits - http://www.gekkoscience.com/products/server_supply_breakout_board.html - and run them with power sharing pins and you have more than enough for the S2 (unless we figure how to overclock past 250mhz) and enough for 3 overclocked S1's. and if you have one of these power supplies go bad you can replace it for a cheap $25 from ebay. i keep an extra few on hand for myself anyway for rapid deployment for myself and customers. if you want more info on the maker of these you can read this thread - https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677

DISCLAIMER: I am in no way affiliated or compensated by sidehack for this recommendation. he has a decent product and i feel he should make money for his work and research.

EDIT: here's pictures of my setup

the math of pulling a blade is -100gh -100watts.

your 150 usd purchase cost more.

pulling 1 blade is the best solution . edit if btc jumps up in price your move was okay

finlof

hero member

Activity: 630

Merit: 500

cant buy this 1TH unit, but you can buy a dragon miner 1TH here https://bitcointalksearch.org/topic/wwweasy2minecom-340-the-group-buy-of-antminer-s5psu-included-514758 or here https://bitcointalksearch.org/topic/worldwidebitmine-950-ghs-1500-usd-next-day-delivery-409701. all for less than $3000/unit. i ordered one of the dragon miners Tuesday evening and received it Friday morning (LESS THAN 3 DAY TURN AROUND TO THE US!). still waiting for batch 3 of the S2s though!

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: rigidguy on April 18, 2014, 10:03:28 PM

Is it more worthwhile to buy this asic or buy BTC straight?

not the correct question.

one investment is passive buying the coin

second investment is active mining

tax law differs.

so if you are in the usa you need to decide if you want to be paying taxes as an investor or as a business owner.

seriouscoin

hero member

Activity: 658

Merit: 500

Quote from: smooth on April 18, 2014, 10:14:09 PM

Quote from: seriouscoin on April 18, 2014, 10:02:30 PM

Quote from: smooth on April 18, 2014, 07:59:23 PM

Quote from: seriouscoin on April 18, 2014, 07:56:51 PM

The 120mm PSU fan isnt designed to take warm air....

In fact the air coming out of the case (and therefore inside the case) isn't that warm. It's a lot of air flow given the power usage. Drawing the PSU from outside would probably be better but I doubt it makes that much difference.

Ofcourse its isnt warm. Thats why i say its poorly designed.

Air will find the least resistant path to go. With such a big gap between the blades, and stupidly bad heatsink, all that noise and air volume are just wasted.

My blades are not running hot either. The air flow is effectively cooling the blades. They're all well under 50.

There just isn't that much heat being generated relative to the amount of air flow. I've cautioned people not to switch to "silent" (really just lower cfm) fans on S1s, but on this one I think somewhat lower capacity fans should work fine, as long as ambient is reasonably low.

You can turn down the fan while adding tunnel..... reducing volume = more air going thro what needed to be cooled.
Infact a proper design should also have a separate chamber for PSU intake.

smooth

legendary

Activity: 2968

Merit: 1198

Quote from: seriouscoin on April 18, 2014, 10:14:39 PM

Mining is a lost right now,

Sad to say I agree. Doesn't really matter since S2 is not in stock, and we don't know what the price will be when they offer it again, so no way to know whether it will be a good deal or not.

seriouscoin

hero member

Activity: 658

Merit: 500

Quote from: rigidguy on April 18, 2014, 10:03:28 PM

Is it more worthwhile to buy this asic or buy BTC straight?

BTC if you're looking into this as invesment.

Mining is a lost right now,

smooth

legendary

Activity: 2968

Merit: 1198

Quote from: seriouscoin on April 18, 2014, 10:02:30 PM

Quote from: smooth on April 18, 2014, 07:59:23 PM

Quote from: seriouscoin on April 18, 2014, 07:56:51 PM

The 120mm PSU fan isnt designed to take warm air....

In fact the air coming out of the case (and therefore inside the case) isn't that warm. It's a lot of air flow given the power usage. Drawing the PSU from outside would probably be better but I doubt it makes that much difference.

Ofcourse its isnt warm. Thats why i say its poorly designed.

Air will find the least resistant path to go. With such a big gap between the blades, and stupidly bad heatsink, all that noise and air volume are just wasted.

My blades are not running hot either. The air flow is effectively cooling the blades. They're all well under 50.

There just isn't that much heat being generated relative to the amount of air flow. I've cautioned people not to switch to "silent" (really just lower cfm) fans on S1s, but on this one I think somewhat lower capacity fans should work fine, as long as ambient is reasonably low.

rigidguy

newbie

Activity: 6

Merit: 0

Is it more worthwhile to buy this asic or buy BTC straight?

seriouscoin

hero member

Activity: 658

Merit: 500

Quote from: smooth on April 18, 2014, 07:59:23 PM

Quote from: seriouscoin on April 18, 2014, 07:56:51 PM

The 120mm PSU fan isnt designed to take warm air....

In fact the air coming out of the case (and therefore inside the case) isn't that warm. It's a lot of air flow given the power usage. Drawing the PSU from outside would probably be better but I doubt it makes that much difference.

Ofcourse its isnt warm. Thats why i say its poorly designed.

Air will find the least resistant path to go. With such a big gap between the blades, and stupidly bad heatsink, all that noise and air volume are just wasted.

Elyssium

newbie

Activity: 21

Merit: 0

I have a quick and dirty fix to the PSU problem.

Some of these units draw air from inside the case and there is a blade stacked up right against it.

In these cases unscrew your PSU, flip it, and then make a cutout of the case to accomodate the fan side. Or just leave the lid open a bit.

smooth

legendary

Activity: 2968

Merit: 1198

Quote from: seriouscoin on April 18, 2014, 07:56:51 PM

The 120mm PSU fan isnt designed to take warm air....

In fact the air coming out of the case (and therefore inside the case) isn't that warm. It's a lot of air flow given the power usage. Drawing the PSU from outside would probably be better but I doubt it makes that much difference.

seriouscoin

hero member

Activity: 658

Merit: 500

Quote from: finlof on April 18, 2014, 07:24:12 PM

Quote from: philipma1957 on April 18, 2014, 07:17:23 PM

Quote from: finlof on April 18, 2014, 06:56:48 PM

for those having power supply problems - I am interested what your room temp is at. if i understand correctly higher temps = lower efficiency so you cannot expect the power supply to perform the same at 60 degrees F (15.5 Celsius) vs 80 degrees F (26.5 Celsius). this also would make a difference as to where it is pulling air from (inside the case B2's vs outside the case B2's). i for one replaced mine about 2 hrs after receiving it due to the fact that i wanted to overclock it (if possible). but i did not have any problems with my unit using the stock PS with the room temp at 60 degrees F or below.

short term a cool room the psu will work. long term it is under sized.

be smart pull a blade all worries vanish. this may be the best solution for almost all owners of the gear.

another fairly cheap solution is to replace the power supply with something beefier. my personal recommendation (and what I did for myself) is to spend around $150 and purchase 2x of these 750w kits - http://www.gekkoscience.com/products/server_supply_breakout_board.html - and run them with power sharing pins and you have more than enough for the S2 (unless we figure how to overclock past 250mhz) and enough for 3 overclocked S1's. and if you have one of these power supplies go bad you can replace it for a cheap $25 from ebay. i keep an extra few on hand for myself anyway for rapid deployment for myself and customers. if you want more info on the maker of these you can read this thread - https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677

DISCLAIMER: I am in no way affiliated or compensated by sidehack for this recommendation. he has a decent product and i feel he should make money for his work and research.

EDIT: here's pictures of my setup
[img ]https://dl.dropboxusercontent.com/u/23772269/2x%20power%20supplies%20in%20tandem.jpg[/img]
[img ]https://dl.dropboxusercontent.com/u/23772269/top%20view%20case%20off.jpg[/img]
[img ]https://dl.dropboxusercontent.com/u/23772269/top%20view%20with%20case%20on.jpg[/img]

Thats to tell you how cheap these products are....

Cheap PSU (yike), cheap board design and cheap casing. Yet not very competitive price.

If you satisfy money for quality, why not get the Coincraft clones?

Seeing your pics, i'm wondering how the heck someone can even call this a 4u rackmountable miner. Btw... ppl should stop putting consumer desktop PSU in a rackmountable server case. The 120mm PSU fan isnt designed to take warm air....

finlof

hero member

Activity: 630

Merit: 500

Quote from: philipma1957 on April 18, 2014, 07:17:23 PM

Quote from: finlof on April 18, 2014, 06:56:48 PM

for those having power supply problems - I am interested what your room temp is at. if i understand correctly higher temps = lower efficiency so you cannot expect the power supply to perform the same at 60 degrees F (15.5 Celsius) vs 80 degrees F (26.5 Celsius). this also would make a difference as to where it is pulling air from (inside the case B2's vs outside the case B2's). i for one replaced mine about 2 hrs after receiving it due to the fact that i wanted to overclock it (if possible). but i did not have any problems with my unit using the stock PS with the room temp at 60 degrees F or below.

short term a cool room the psu will work. long term it is under sized.

be smart pull a blade all worries vanish. this may be the best solution for almost all owners of the gear.

another fairly cheap solution is to replace the power supply with something beefier. my personal recommendation (and what I did for myself) is to spend around $150 and purchase 2x of these 750w kits - http://www.gekkoscience.com/products/server_supply_breakout_board.html - and run them with power sharing pins and you have more than enough for the S2 (unless we figure how to overclock past 250mhz) and enough for 3 overclocked S1's. and if you have one of these power supplies go bad you can replace it for a cheap $25 from ebay. i keep an extra few on hand for myself anyway for rapid deployment for myself and customers. if you want more info on the maker of these you can read this thread - https://bitcointalksearch.org/topic/server-power-supply-interface-board-for-standalone-miners-and-gpu-rigs-379677

DISCLAIMER: I am in no way affiliated or compensated by sidehack for this recommendation. he has a decent product and i feel he should make money for his work and research.

EDIT: here's pictures of my setup

smooth

legendary

Activity: 2968

Merit: 1198

Quote from: philipma1957 on April 18, 2014, 07:17:23 PM

Quote from: finlof on April 18, 2014, 06:56:48 PM

for those having power supply problems - I am interested what your room temp is at. if i understand correctly higher temps = lower efficiency so you cannot expect the power supply to perform the same at 60 degrees F (15.5 Celsius) vs 80 degrees F (26.5 Celsius). this also would make a difference as to where it is pulling air from (inside the case B2's vs outside the case B2's). i for one replaced mine about 2 hrs after receiving it due to the fact that i wanted to overclock it (if possible). but i did not have any problems with my unit using the stock PS with the room temp at 60 degrees F or below.

short term a cool room the psu will work. long term it is under sized.

be smart pull a blade all worries vanish. this may be the best solution for almost all owners of the gear.

Not even that bad long term. You have a spare blade in case one fails, or you can sell it to someone else with a failed blade, or who wants to build their own homebrew miner around it.

philipma1957

legendary

Activity: 4256

Merit: 8551

'The right to privacy matters'

Quote from: finlof on April 18, 2014, 06:56:48 PM

for those having power supply problems - I am interested what your room temp is at. if i understand correctly higher temps = lower efficiency so you cannot expect the power supply to perform the same at 60 degrees F (15.5 Celsius) vs 80 degrees F (26.5 Celsius). this also would make a difference as to where it is pulling air from (inside the case B2's vs outside the case B2's). i for one replaced mine about 2 hrs after receiving it due to the fact that i wanted to overclock it (if possible). but i did not have any problems with my unit using the stock PS with the room temp at 60 degrees F or below.

short term a cool room the psu will work. long term it is under sized.

be smart pull a blade all worries vanish. this may be the best solution for almost all owners of the gear.

Topic: ANTMINER S2 Discussion and Support Thread - page 142. (Read 355820 times)