ANTMINER S3+ Discussion and Support Thread

[IITravel01]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap 
they're not doing charity here buddy 

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

[Tips4TaT]

If the price and/or power of an S4 is equivalent or even a bit less than S3, I’ll stick with the S3’s. Can’t afford to lose 2T if the box goes down… Having a nightmare of time with my CoinTerra shits boxes…

[Biodom]

If the price and/or power of an S4 is equivalent or even a bit less than S3, I’ll stick with the S3’s. Can’t afford to lose 2T if the box goes down… Having a nightmare of time with my CoinTerra shits boxes…

S2 was sketchy in the beginning, but my later batch S2 worked for 20-30 days straight with no interruptions. It was great.

[edonkey]

We are glad to share the news of ANTMINER S4 2TH/s, Batch 1 will be on sale this week, shipped before Sept. ends.

Bitmain, can you tell us the dimensions of this new unit? I'm interested in rack mounting it if possible.

Will it have "ears" for rack mounting, or at least an option? I'm not a big fan of installing shelves to hold boxes like this.

I'm of course interested in the price as well, but I assume you're not going to pre-announce that. However you must already know the dimensions of the box if you're shipping before the end of the month, so hopefully you'll answer my question.

EDIT - Sorry! I'll ask this on the S4 thread instead

[Stratobitz]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap  
they're not doing charity here buddy  

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

A 20 Amp 110 v circuit can handle a continuos load of roughly 2000 watts, not 1600. Give or take a bit of course.  Most new construction uses 20 amp breakers.

Strato

[mrpark]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap  
they're not doing charity here buddy  

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

A 20 Amp 110 v circuit can handle a continuos load of roughly 2000 watts, not 1600. Give or take a bit of course.  Most new construction uses 20 amp breakers.

Strato

For continuous load you should not put more than max 1650w on a 20amp breaker, or the breaker will get hot and eventually burn out. Just like your tires going on the road 100MPH all the time. The formula for continuous load is subtract 25%.  If your wire or breaker feels to hot then you are doing something wrong. 2000W is a no no.

[bspurloc]

It looks like the S3 upgrade kits dont come with the enclosure...

 which I must assume is going to make them run hotter than an S3...

Does anyone have some slick ideas for an enclosure to get around these? CHEAP not something someone made.

Besides taping cardboard around them, which I may end up doing.

Or I may just fabricate some sheet metal.  

[kgb2mining]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap 
they're not doing charity here buddy 

You don't need an "EVGA Platinum".  You need a good, high efficiency server power supply, and you for sure don't need 1500w to power 2TH.  A server class PSU will beat the pants off of any consumer model at any time.

You will get higher efficiency out of a server-class PSU, and even better if you're running on 240v instead of 120.  Take a look at the SPTech specs for their servers, and do the math to see what they're pulling, and they're doing it at 90+ efficiency.  The one thing I'll give SPTech is that they are built well, using (supposedly) higher end server grade parts.

By undervolting you achieve several different things.  Yes, you lower your hashrate, but you also lower power draw significantly, lower heat generation, and raise efficiency which allow you to get higher numbers with much more stability.  The ASIC chips themselves are cheap, they're only "wasting" a few bucks by having to add a few more when undervolted.  Seriously an extra hashboard to them is probably $50, so when you're dealing with a $1000 server that's really not much at all.

[Stratobitz]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap  
they're not doing charity here buddy  

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

A 20 Amp 110 v circuit can handle a continuos load of roughly 2000 watts, not 1600. Give or take a bit of course.  Most new construction uses 20 amp breakers.

Strato

For continuous load you should not put more than max 1650w on a 20amp breaker, or the breaker will get hot and eventually burn out. Just like your tires going on the road 100MPH all the time. The formula for continuous load is subtract 25%.  If your wire or breaker feels to hot then you are doing something wrong. 2000W is a no no.

We will just have to agree to disagree there. If a breaker is rated at 20 amps load at 110v it will certainly hold 1920. I also speak from experience here. Long term loads of 1800-1900 months on end. No issues. But yes the breaker will get warm.

Strato

[kgb2mining]

It looks like the S3 upgrade kits dont come with the enclosure...

 which I must assume is going to make them run hotter than an S3...

Does anyone have some slick ideas for an enclosure to get around these? CHEAP not something someone made.

Besides taping cardboard around them, which I may end up doing.

Or I may just fabricate some sheet metal.  

No, they are supposed to bolt up right to the same frame structure as the S1, reusing it.  Honestly it shouldn't be any worse without the enclosure around it if you have proper airflow.

As for an enclosure, I'm working with another member on a rackmountable chassis to hold a few S3's (you can find the initial thread I think under group buys a month or two back).  Hopefully the first prototype will be delivered in about a week, and the idea is to fit 12 S3's worth of blades and server PSU's in about 10U of rack space.  If you PM me I'll get some pics of it to you when done (I won't want to search through pages of this thread in a couple weeks to find you...  )

[soy]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap  
they're not doing charity here buddy  

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

A 20 Amp 110 v circuit can handle a continuos load of roughly 2000 watts, not 1600. Give or take a bit of course.  Most new construction uses 20 amp breakers.

Strato

Standard outlets are rated at 15 amps.  Outlets rated at 20 amps look differently.  A 20 amp outlet has one of the two vertical slots having a T shape, the T on its side.  Next time you're in Home Depot or Lowes take a look.  Interestingly the 20 amp outlets have a clamp type wire hook-up.  It's not to say that a general contractor building kitchens won't put a couple of 15 amp outlets on a #12 gauge Romex circuit to a 20 amp breaker.

[bspurloc]

It looks like the S3 upgrade kits dont come with the enclosure...

 which I must assume is going to make them run hotter than an S3...

Does anyone have some slick ideas for an enclosure to get around these? CHEAP not something someone made.

Besides taping cardboard around them, which I may end up doing.

Or I may just fabricate some sheet metal.  

No, they are supposed to bolt up right to the same frame structure as the S1, reusing it.  Honestly it shouldn't be any worse without the enclosure around it if you have proper airflow.

As for an enclosure, I'm working with another member on a rackmountable chassis to hold a few S3's (you can find the initial thread I think under group buys a month or two back).  Hopefully the first prototype will be delivered in about a week, and the idea is to fit 12 S3's worth of blades and server PSU's in about 10U of rack space.  If you PM me I'll get some pics of it to you when done (I won't want to search through pages of this thread in a couple weeks to find you...  )

I was just looking thru my server room and extras and I think I actually have 2 rack mounted enclosures that were made for putting XT mother boards in them that may just work haha...
 I presently have 3 S1's stacked and tied on top of each other and some others sitting on the floor at the bottom of some racks. They are all sitting at 41-42C so I guess I shouldnt even need to care about keeping things cool if I have s1's running that cool and overclocked. I have S3's sitting out in the office area and they are at 42-43 and super quiet where and S1 out here would be at 46-47 fans blazing. So it just seemed to me those enclosures were really helping keep the s3's cooler.

[Biodom]

I wouldn't be so sure. I think they can squeeze 2 TH/s out of 1100-1200W.

2000G * 0.7W/GH = 1400W MINIMUM...OK...

The assumption is that the S4 works with underclocked/undervolted ASICS to reach a better W/GH ratio, I would assume somewhere between 0.55 and 0.65 W/GH, so one 1300/1400W power supply could indeed do. But of course we'll not know for sure till @BITMAIN reveals the exact specs.

still, they wont give you something like
Evga 1500w Platinum      


and, btw...
5units of S3+ = 355w x 5 = 1,775W

i assume S4 will be around 1500w - 1700w
they wont waste chips like that..
they better selling chips like avalon do than planting so much undervolted chips
and sell it so damn cheap  
they're not doing charity here buddy  

In the U.S. a standard electrical socket is rated at 1600w max. I believe, so I don't think they'll go over that.  Would be nice if a 1300w single power supply would be able to handle the new S4 with the EVGA G2 so cheap right now.

A 20 Amp 110 v circuit can handle a continuos load of roughly 2000 watts, not 1600. Give or take a bit of course.  Most new construction uses 20 amp breakers.

Strato

It's not to say that a general contractor building kitchens won't put a couple of 15 amp outlets on a #12 gauge Romex circuit to a 20 amp breaker.

ha ha  ..it is exactly what they did in my house-dinner room 20A circuit (I checked), all outlets there are of regular size (no T), the same in the garage (the only difference is that it says GFCI on outlets).

[SMB-2525]

I cycled a circuit breaker last night. That caused both of my S3s to not hash when they came back up. The fan in the S3 is running, but it does not come up.

The power on sequence goes like this:
Red light flashes for about 20 seconds
Green light comes on for a second - at the same time the network link lights come on
The red and the green lights go out at the same time. The network link lights stay on. The fan stays on.
They do not respond to ping or login attempt.

Each is on a 750 Watt Corsair PS and the whole lot is on a surge protector.

Did I kill them?

[aarons6]

I cycled a circuit breaker last night. That caused both of my S3s to not hash when they came back up. The fan in the S3 is running, but it does not come up.

The power on sequence goes like this:
Red light flashes for about 20 seconds
Green light comes on for a second - at the same time the network link lights come on
The red and the green lights go out at the same time. The network link lights stay on. The fan stays on.
They do not respond to ping or login attempt.

Each is on a 750 Watt Corsair PS and the whole lot is on a surge protector.

Did I kill them?

happened to me. check the dns.

[suchmoon]

I cycled a circuit breaker last night. That caused both of my S3s to not hash when they came back up. The fan in the S3 is running, but it does not come up.

The power on sequence goes like this:
Red light flashes for about 20 seconds
Green light comes on for a second - at the same time the network link lights come on
The red and the green lights go out at the same time. The network link lights stay on. The fan stays on.
They do not respond to ping or login attempt.

Each is on a 750 Watt Corsair PS and the whole lot is on a surge protector.

Did I kill them?

Did you set them to DHCP or manual IP? Try one at a time, also try to connect to the default IP. Failing that try to reflash the micro SD card, you may have killed that.

[kgb2mining]

I was just looking thru my server room and extras and I think I actually have 2 rack mounted enclosures that were made for putting XT mother boards in them that may just work haha...

Actually that might work, gut it and you might have something there...

I presently have 3 S1's stacked and tied on top of each other and some others sitting on the floor at the bottom of some racks. They are all sitting at 41-42C so I guess I shouldnt even need to care about keeping things cool if I have s1's running that cool and overclocked. I have S3's sitting out in the office area and they are at 42-43 and super quiet where and S1 out here would be at 46-47 fans blazing. So it just seemed to me those enclosures were really helping keep the s3's cooler.

I will certainly agree with you there, the S3's are for sure quieter and it seems a little cooler.  Honestly it seems the open S1 frame is cool, but heat just flows everywhere out of it.  With the covering on the S3 it tunnels it better through the boards and out the back, at least better directing the airflow.

[SMB-2525]

I cycled a circuit breaker last night. That caused both of my S3s to not hash when they came back up. The fan in the S3 is running, but it does not come up.

The power on sequence goes like this:
Red light flashes for about 20 seconds
Green light comes on for a second - at the same time the network link lights come on
The red and the green lights go out at the same time. The network link lights stay on. The fan stays on.
They do not respond to ping or login attempt.

Each is on a 750 Watt Corsair PS and the whole lot is on a surge protector.

Did I kill them?

Interesting. Leaving them off for 5 minutes did not fix it. Leaving them off for 20 minutes did.
After a longer capacitor discharge period, they came up and started hashing on their configured IP addresses.
Those are some capacitors.

Thanks for your suggestions - they got me to try again rather than drink myself into oblivion over the $7ish/day in lost BTC revenue.

[tl121]

We will just have to agree to disagree there. If a breaker is rated at 20 amps load at 110v it will certainly hold 1920. I also speak from experience here. Long term loads of 1800-1900 months on end. No issues. But yes the breaker will get warm.

Strato

Good luck with that.  I hope your breakers work correctly.  Some of them don't.  I replaced my entire panel because the manufacturer, Federal Electric, produced breakers that didn't shut down reliably in the case of overloads and caused a number of house fires.

Another factor to consider if your power is subject to brown outs...  Your miner power supply will attempt to maintain a constant voltage to the miner and hence constant power output even if the line voltage drops.  This means the current draw will increase.  So if you have reliable operation during periods when your supply voltage is high you may have difficulties if your voltage drops.  Should this happen, you can hope that your problems are tripping breakers and not breakers that you wish had tripped but didn't.

[soy]

I cycled a circuit breaker last night. That caused both of my S3s to not hash when they came back up. The fan in the S3 is running, but it does not come up.

The power on sequence goes like this:
Red light flashes for about 20 seconds
Green light comes on for a second - at the same time the network link lights come on
The red and the green lights go out at the same time. The network link lights stay on. The fan stays on.
They do not respond to ping or login attempt.

Each is on a 750 Watt Corsair PS and the whole lot is on a surge protector.

Did I kill them?

Interesting. Leaving them off for 5 minutes did not fix it. Leaving them off for 20 minutes did.
After a longer capacitor discharge period, they came up and started hashing on their configured IP addresses.
Those are some capacitors.

Thanks for your suggestions - they got me to try again rather than drink myself into oblivion over the $7ish/day in lost BTC revenue.

A charged capacitor will have a voltage memory.  Hold a capacitor at voltage for a while, take away the source, measure the voltage across the cap, then completely short it, say put a wrench across the terminals for a minute,  remove the short, wait 30 seconds, measure the cap and some voltage will have returned.  

Years ago working for a company that built DC motors there was a machine with a huge bank of capacitors that would get charged then the charge shorted thru coils around magnet blanks inducing a permanent field.  I was assisting the troubleshooting.  The guy doing the troubleshooting had a shorting cable the end of which was attached to a stick.  To make sure the caps were discharged he'd short with the shorting stick.  We went to lunch.  After lunch he reached in and got badly knocked on his ass.  Actually he was more than just knocked on his ass.  I think he was knocked unconscious, thrown some distance and suffered a significant burn.  I didn't witness the accident.  Ambulance came and took him to the hospital.  He felt someone hit the charge button while we were gone.  I couldn't disagree with him.  Years later I realized it may have been that voltage memory.