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Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 324. (Read 531168 times)

hero member
Activity: 569
Merit: 500
at 1275watts is it now ok to use something like a EVGA Gold G2 1300watt?
 Been Eyeballing 1600watts ones but 1300 is liek 150$ cheaper Wink

you'd be pushing it pretty hard.

easy solution is to underclock the S9 slightly, such as to 13TH - which would reduce your PSU load by 100W

Under clock a bit more to 11.5th. The 1300  g2 will work fine..

Then figure your math. You save 150 on the psu. But lose 2000gh to 2500th.

At current diff that's about $3 per day before power costs. So probably 100+ days ROI on that difference alone... I'd say if one already has a 1300W PSU they should probably underclock. If buying new - I'd buy a server PSU anyway.

well the 1300 only has 6 atx connectors so lame.


first of all, eight (four singles and two doubles=8); second, I bought two PCIe split cables (for $4 ea) that increase total numbers of connectors to 10. has been running many B1-5 and 6 like this for 6-8 mo already on EVGA 1300. S7 b1,3,5 has similar 1293 wattage, B2,4,6 even less watts.
EDIT: exactly what @suchmoon said as well ^^^^

where did you get the PCIe split cables. I just want to make sure I get same gauge wire as you! random amazons are bad choices! I did that for my S3's and got like thinner than 22 gauge or something. almost fried them. rewired them with 18 gauge.
 so using a 1300watt GOLD how much under clocking? like a 4.7 S7 needs to run at work? 4.5? or something worse?
thanks
legendary
Activity: 1638
Merit: 1005
my 2 are on the truck.  can not wait to set them up.

Yeah exciting time ! ;-)

Can't wait for the review Tongue

Have a great one Phil !
legendary
Activity: 938
Merit: 1000
I have been doing a little testing. I don't have one in person so no high res pictures to share of the unit.   But I can say it seems to run very well right around 14T just as expected.  It reported very close to the 14T with very low hardware errors.  So again all signs here point to good things.


I used Antpool to get a 24 hour baseline which was at 13.72 TH/s.  Again this is a early test and the slightly lower hashrate could be due to things such as network variance, pool performance, unit itself, etc.  I do plan on testing other pools for more baselines. On the picture below is also an S7 just as reference. The S9 does tower above it on it's hashing speed.


Could you try to connect it to Kano.is, since rumor is that Bitmain made a hack of cgminer, so most likely only their own Ant "Shit" pool works ??
legendary
Activity: 1456
Merit: 1000
I have been doing a little testing. I don't have one in person so no high res pictures to share of the unit.   But I can say it seems to run very well right around 14T just as expected.  It reported very close to the 14T with very low hardware errors.  So again all signs here point to good things.

(picture above)

I used Antpool to get a 24 hour baseline which was at 13.72 TH/s.  Again this is a early test and the slightly lower hashrate could be due to things such as network variance, pool performance, unit itself, etc.  I do plan on testing other pools for more baselines. On the picture below is also an S7 just as reference. The S9 does tower above it on it's hashing speed.

(picture above)

great info.

any comments on the temps and fans - did you hear any "woo-woo" sound like the S7s?

I don't have the S9 in person this is being accessed remotely.  So I can't say far as noise but fan's one is currently running at 4200 RPM and other at 3800 RM.  On temps they look good but I don't have another another one so I only have one to base it off of and can't compare it with being accessed remotely.

I can say currently around 8 hours into my 24 hour test on F2 and seems to be running great so far:


With not having it in person I can't say on somethings I know everyone want's to know/see.  But I can't wait to start seeing others on forum receive and see some pictures and comments about it in person.

Also on pools I have not been able to give it a 24 hour run yet but did test Kano for around 2 hour's and no issues.   So again all signs point to good.   I am testing pools for 24 hour runs based on pool hashrate currently as kinda a general path to follow.  So far very positive going off hashrate and performance.
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
my 2 are on the truck.  can not wait to set them up.
legendary
Activity: 1834
Merit: 1080
---- winter*juvia -----
I have been doing a little testing. I don't have one in person so no high res pictures to share of the unit.   But I can say it seems to run very well right around 14T just as expected.  It reported very close to the 14T with very low hardware errors.  So again all signs here point to good things.


I used Antpool to get a 24 hour baseline which was at 13.72 TH/s.  Again this is a early test and the slightly lower hashrate could be due to things such as network variance, pool performance, unit itself, etc.  I do plan on testing other pools for more baselines. On the picture below is also an S7 just as reference. The S9 does tower above it on it's hashing speed.


great info.

any comments on the temps and fans - did you hear any "woo-woo" sound like the S7s?
full member
Activity: 294
Merit: 100
i would maybe buy one of theese after the halving and if it gets a little cheaper Smiley
so far its to heavy for my Moneyback Cheesy

good idea
legendary
Activity: 1456
Merit: 1000
I have been doing a little testing. I don't have one in person so no high res pictures to share of the unit.   But I can say it seems to run very well right around 14T just as expected.  It reported very close to the 14T with very low hardware errors.  So again all signs here point to good things.


I used Antpool to get a 24 hour baseline which was at 13.72 TH/s.  Again this is a early test and the slightly lower hashrate could be due to things such as network variance, pool performance, unit itself, etc.  I do plan on testing other pools for more baselines. On the picture below is also an S7 just as reference. The S9 does tower above it on it's hashing speed.

member
Activity: 112
Merit: 10
i would maybe buy one of theese after the halving and if it gets a little cheaper Smiley
so far its to heavy for my Moneyback Cheesy
hero member
Activity: 742
Merit: 500
Weighs a freakin' ton though.

Sure - suppose to be a pure lead acid battery Smiley

legendary
Activity: 3822
Merit: 2703
Evil beware: We have waffles!
I should look into that for mine. At home I have a 11kw permanent genset that kick's in after ~30sec so the on-battery time is minimal but I DO like that remote power cycling. Neva thought of that.
newbie
Activity: 28
Merit: 0
I have some of the Sinewave Line Interactive models.  I don't use them for always on though, miners go on the NCL bank and get turned off after just a few minutes if the power goes out and stays out.  Servers are on the main bank.  But what is super cool about having them is you can remotely power cycle the NCL bank as long as you have access to a computer on the same network.  So if I am away and a miner acts up and I remote in and still can't make it cooperate I can power cycle it which pretty much always brings it back to life.

Thats interesting. I have similar setup I've noticed sometimes when the power cycles thought It sometimes won't reconnect to the network, Had issues with this for a while now. seems intermitten sometimes it works. sometimes it hangs. nothing.
legendary
Activity: 1726
Merit: 1018
I have some of the Sinewave Line Interactive models.  I don't use them for always on though, miners go on the NCL bank and get turned off after just a few minutes if the power goes out and stays out.  Servers are on the main bank.  But what is super cool about having them is you can remotely power cycle the NCL bank as long as you have access to a computer on the same network.  So if I am away and a miner acts up and I remote in and still can't make it cooperate I can power cycle it which pretty much always brings it back to life.
legendary
Activity: 3822
Merit: 2703
Evil beware: We have waffles!
On target for price. Got mine through PCM/TigerDirect Biz. Since they have the terminals for adding additional battery packs, I wonder how they would take to using solar? They are perfectly happy running off of only DC so... Use the solar array to feed them and when the array drops below useful power, have the dry contact relay in the UPS toggle a changeover to the AC line.

Also that particular one uses an auto-switching transformer setup = 1 cycle-or more xfr time. Mine are the https://www.cyberpowersystems.com/products/ups/smart-app-online/ol3000rtxl2u that are always on line eg, converting AC to DC and then back to perfect 120VAC or whatever you program output.

edit: available in 120v and 240v flavors as well. Of course I found that out AFTER getting the 120v one and using a step-up for feeding the miner PSU's...
legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
More OT here, just checked an my s9 has left Alaska. Still says delivery on Tues but will be Wed at the worst. Got a nice shiny new Cyberpower 3kVA dual-conversion UPS hooked for it at home just a-waitin' for it Cheesy Love those things -- 0 transfer time because it's always on-line and depending on the %of max load on them, they can keep running off the line down to -60% nominal. Weighs a freakin' ton though. Sure as hell don't want any power disruptions to be taking out 14THs...

Wow that sounds nice.  How much does something like that cost?

1000 USD

 BUT   there is an ebay seller that sells refurbs cheaper.

http://www.ebay.com/itm/CyberPower-Smart-App-Sinewave-UPS-PR3000LCDRTXL2U-3000VA-2400W-AC-120V-Rack-2U-/222087119042?

I used this seller for rebuilt ups quite a bit.
he will go down on the price  10 to 15 % if you use make an offer option
legendary
Activity: 1096
Merit: 1021
More OT here, just checked an my s9 has left Alaska. Still says delivery on Tues but will be Wed at the worst. Got a nice shiny new Cyberpower 3kVA dual-conversion UPS hooked for it at home just a-waitin' for it Cheesy Love those things -- 0 transfer time because it's always on-line and depending on the %of max load on them, they can keep running off the line down to -60% nominal. Weighs a freakin' ton though. Sure as hell don't want any power disruptions to be taking out 14THs...

Wow that sounds nice.  How much does something like that cost?
legendary
Activity: 3822
Merit: 2703
Evil beware: We have waffles!
More OT here, just checked an my s9 has left Alaska. Still says delivery on Tues but will be Wed at the worst. Got a nice shiny new Cyberpower 3kVA dual-conversion UPS hooked for it at home just a-waitin' for it Cheesy Love those things -- 0 transfer time because it's always on-line and depending on the %of max load on them, they can keep running off the line down to -60% nominal. Weighs a freakin' ton though. Sure as hell don't want any power disruptions to be taking out 14THs...
legendary
Activity: 3654
Merit: 8909
https://bpip.org
Why mining is not profitable after halving?

What can be the exact reason?

Who told you that ?

have heard something like, difficulty will decrease and it will not be easy for miners to earn through mining..

Difficulty decrease would mean earnings increase (lower difficulty makes it "easier" to find blocks). "Halving" will reduce the block reward, which makes miners earn less but that's not the only factor that determines profitability.

I would suggest to read up on the fundamentals, e.g. difficulty, block reward, miner efficiency, exchange rates, etc. There is no simple answer, such as "profitable" or "not profitable". There are multiple variables and you need to understand how they affect profitability.
hero member
Activity: 560
Merit: 500
Why mining is not profitable after halving?

What can be the exact reason?

Who told you that ?

have heard something like, difficulty will decrease and it will not be easy for miners to earn through mining..
legendary
Activity: 3374
Merit: 1859
Curmudgeonly hardware guy
https://bitcointalksearch.org/topic/m.15180315

Please note the responses to when you asked the same question in this thread yesterday.
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