Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 181.

wolfen

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Quote from: tbonetony on January 07, 2017, 12:17:39 PM

Quote from: d57heinz on January 07, 2017, 09:07:56 AM

Thought id share this since noone seems to have much data on cold operations. Least none that ive seen. Antminer s9 batch 9 11.85 ths in Zero degree Fahrenheit!

anyone have any tricks to getting a s7 back online when it shows temp at 250c. Seems no one fixed temp bug from s1 and it still plagues these miners. Ive attempted at unchecking the box for over 80c stop mining but that doesn't effect it any. It tries to warm up but never can start mining. If the chip isnt over 0c it will not start hashing. Very odd. Is this software issue or is it that the chips don't like that cold? TIA

EDit. well looks like a no go for remote restart. When they are too cold they absolutely will not start to hash. Looks like a trip to the farm and some cardboard over the intake side:) Some reason this one wont stay hashing. Normally cold isnt an issue but i think this one is loosing connection briefly causing it to cool down to an unstable state.

BR

I feel your fan speed is a bit too high. My S9 runs stably at -20 degC @ 35% manual fan speed. it's quiet and chip temps stay between 65 ~ 75 degC.

I agree 4000rpm at 0 degrees F seems crazy
When it is that cold you should be able to run it on auto fan.

tbonetony

sr. member

Activity: 441

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No zuo no die why you try, u zuo u die dont be shy

Quote from: d57heinz on January 07, 2017, 09:07:56 AM

Thought id share this since noone seems to have much data on cold operations. Least none that ive seen. Antminer s9 batch 9 11.85 ths in Zero degree Fahrenheit!

anyone have any tricks to getting a s7 back online when it shows temp at 250c. Seems no one fixed temp bug from s1 and it still plagues these miners. Ive attempted at unchecking the box for over 80c stop mining but that doesn't effect it any. It tries to warm up but never can start mining. If the chip isnt over 0c it will not start hashing. Very odd. Is this software issue or is it that the chips don't like that cold? TIA

EDit. well looks like a no go for remote restart. When they are too cold they absolutely will not start to hash. Looks like a trip to the farm and some cardboard over the intake side:) Some reason this one wont stay hashing. Normally cold isnt an issue but i think this one is loosing connection briefly causing it to cool down to an unstable state.

BR

I feel your fan speed is a bit too high. My S9 runs stably at -20 degC @ 35% manual fan speed. it's quiet and chip temps stay between 65 ~ 75 degC.

gt_addict

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Boards temps need to be 50c or above for "normal" functionality from what I've experienced with miners.

d57heinz

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Activity: 1453

Merit: 1011

Bitcoin Talks Bullshit Walks

Thought id share this since noone seems to have much data on cold operations. Least none that ive seen. Antminer s9 batch 9 11.85 ths in Zero degree Fahrenheit!

anyone have any tricks to getting a s7 back online when it shows temp at 250c. Seems no one fixed temp bug from s1 and it still plagues these miners. Ive attempted at unchecking the box for over 80c stop mining but that doesn't effect it any. It tries to warm up but never can start mining. If the chip isnt over 0c it will not start hashing. Very odd. Is this software issue or is it that the chips don't like that cold? TIA

EDit. well looks like a no go for remote restart. When they are too cold they absolutely will not start to hash. Looks like a trip to the farm and some cardboard over the intake side:) Some reason this one wont stay hashing. Normally cold isnt an issue but i think this one is loosing connection briefly causing it to cool down to an unstable state.

BR

wolfen

hero member

Activity: 770

Merit: 523

Checking my farm, I have four 13.5th and two 11.0th s9 autotunes.
All the rest are 11.85th or 12.93th.

wolfen

hero member

Activity: 770

Merit: 523

Had the same problem with s7's.
My solution was to get some cheap fans the same dimensions as the fan only that were about 1/2 inch thick.
I gutted them and got longer screws to allow for a half inch gap between the fan and the miner, like a little tunnel.
Seemed to get the job done.
I have since removed them since they were at the datacenter and I did not care about noise. At home they were great.
Makes them a bit longer.
I think you only need to do the front OR the back fan. May need an extension on the fan wire.

numnutz2009

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Activity: 387

Merit: 254

Quote from: CarlosVR2 on January 06, 2017, 11:40:32 AM

Hello people!

I recently cleaned up an Antminer S9 after several months of use. The good part is the temperature went down about 10° Celsius. The bad part is the fans are now doing an annoying whistling sound they didn´t do since it was new. Huh

I have tried setting the fans from 60% to 95% and curiously the whistle is louder at lower fan speeds.

I remember in this tread somebody mentioned covering part of the front fan grille could reduce the whistling. I tried that and the whistle is reduced, but the board and chip temperatures rises. I also worry that's not a good solution long-term.

Could anybody share some advice about how to reduce the fan whistle without the temperatures going up?

Thanks a lot!

there is no way to do it. the grill or at the very least part of the grill has to be covered which restricts airflow which makes the temps rise. if you remove the grill the whistle will still be there too usually. your best bet is to cut a small piece of scotch tape and move it around on the grill until you find the right spot. then you cut the tape as small as possible until you use the least amount of tape to block the airflow which will reduce the impact it will have on the temps. i dont think its the grill or fan creating the noise though. the issue is the heat sinks not being on straight all the time and it makes some whistle louder than others.

CarlosVR2

newbie

Activity: 11

Merit: 0

Hello people!

I recently cleaned up an Antminer S9 after several months of use. The good part is the temperature went down about 10° Celsius. The bad part is the fans are now doing an annoying whistling sound they didn´t do since it was new. Huh

I have tried setting the fans from 60% to 95% and curiously the whistle is louder at lower fan speeds.

I remember in this tread somebody mentioned covering part of the front fan grille could reduce the whistling. I tried that and the whistle is reduced, but the board and chip temperatures rises. I also worry that's not a good solution long-term.

Could anybody share some advice about how to reduce the fan whistle without the temperatures going up?

Thanks a lot!

Biodom

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Activity: 3892

Merit: 4331

Quote from: wolfen on January 05, 2017, 04:25:40 PM

Quote from: d57heinz on January 05, 2017, 10:33:56 AM

Quote from: wolfen on January 05, 2017, 10:31:31 AM

someone sold a crapload of btc at 4am est at $903 according to bitcoinwisdom.com
Just a downward spike for a moment.
Was a precursor.

Great part about that is they can only do that once:). It was bound to correct soon anyway. Was up up and away awefully fast

BR

Exactly. Not like gold ETF's , they can sell paper gold all day.

actually, they CAN using margin and/or futures.
bitfinex has 10X and 20x leverage on some bitcoin positions
I get it that there is some difference, but it would be reduced even further when COIN ETF starts trading.

wolfen

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Activity: 770

Merit: 523

Quote from: d57heinz on January 05, 2017, 10:33:56 AM

Quote from: wolfen on January 05, 2017, 10:31:31 AM

someone sold a crapload of btc at 4am est at $903 according to bitcoinwisdom.com
Just a downward spike for a moment.
Was a precursor.

Great part about that is they can only do that once:). It was bound to correct soon anyway. Was up up and away awefully fast

BR

Exactly. Not like gold ETF's , they can sell paper gold all day.

d57heinz

legendary

Activity: 1453

Merit: 1011

Bitcoin Talks Bullshit Walks

Quote from: wolfen on January 05, 2017, 10:31:31 AM

someone sold a crapload of btc at 4am est at $903 according to bitcoinwisdom.com
Just a downward spike for a moment.
Was a precursor.

Great part about that is they can only do that once:). It was bound to correct soon anyway. Was up up and away awefully fast

BR

wolfen

hero member

Activity: 770

Merit: 523

someone sold a crapload of btc at 4am est at $903 according to bitcoinwisdom.com
Just a downward spike for a moment.
Was a precursor.

kodokbuduk

full member

Activity: 294

Merit: 100

Quote from: wolfen on January 05, 2017, 08:26:19 AM

Bitcoin taking a dive, huobi trading stopped.

a sign new batch of s9 will release soon..

wolfen

hero member

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Bitcoin taking a dive, huobi trading stopped.

mamiakimo

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Quote from: sunny163 on January 05, 2017, 04:59:34 AM

any update about new batch of s9 ?

they still have 292 on hashnest on stock
i think after it sold they will provide there new batches

sunny163

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any update about new batch of s9 ?

philipma1957

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'The right to privacy matters'

Quote from: AriesIV10 on January 04, 2017, 03:40:33 PM

Quote from: sunny163 on January 04, 2017, 01:37:36 PM

Quote from: AriesIV10 on January 04, 2017, 12:15:03 PM

Quote from: sunny163 on January 04, 2017, 11:05:11 AM

has anyone heard anything of bitcoinworld.biz ?

Please elaborate.

I visited this site today but not able to get it is profitable or not or just a scam site

I would stay with Bitmain or Avalon for your hardware if you are wanting to go that route. If you are looking into cloud mining, I would go with Bitmain(Hashnest or contract) or Genisis Mining although not as profitable.

One other consideration is Altcoin Mining and there you can build your own Rig with GPUs or buy an already built Rig from MintMining.com (this is me) or Panda Miner.

Just some advice and options.

This advice is pretty good.

I own Avalon direct from them
I own s9 and r4 from bitmain
I own some cloud hash from hashnest
I have a pandaminer
I have 40 gpus in diy rigs I built myself.

I own a little bit of gear from side-hack.

I don't have a gpu rig from airesIV10

takagari

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Activity: 1050

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Quote from: sunny163 on January 04, 2017, 01:37:36 PM

Quote from: AriesIV10 on January 04, 2017, 12:15:03 PM

Quote from: sunny163 on January 04, 2017, 11:05:11 AM

has anyone heard anything of bitcoinworld.biz ?

Please elaborate.

I visited this site today but not able to get it is profitable or not or just a scam site

Pretty much every cloudmining site is a scam, but this is pretty off topic for this thread.

AriesIV10

legendary

Activity: 1260

Merit: 1006

Mine for a Bit

Quote from: sunny163 on January 04, 2017, 01:37:36 PM

Quote from: AriesIV10 on January 04, 2017, 12:15:03 PM

Quote from: sunny163 on January 04, 2017, 11:05:11 AM

has anyone heard anything of bitcoinworld.biz ?

Please elaborate.

I visited this site today but not able to get it is profitable or not or just a scam site

I would stay with Bitmain or Avalon for your hardware if you are wanting to go that route. If you are looking into cloud mining, I would go with Bitmain(Hashnest or contract) or Genisis Mining although not as profitable.

One other consideration is Altcoin Mining and there you can build your own Rig with GPUs or buy an already built Rig from MintMining.com (this is me) or Panda Miner.

Just some advice and options.

sunny163

member

Activity: 126

Merit: 10

Quote from: AriesIV10 on January 04, 2017, 12:15:03 PM

Quote from: sunny163 on January 04, 2017, 11:05:11 AM

has anyone heard anything of bitcoinworld.biz ?

Please elaborate.

I visited this site today but not able to get it is profitable or not or just a scam site

Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 181. (Read 531173 times)