ANTMINER S3+ Discussion and Support Thread

[MoreBloodWine]

Ok, so were 3 days 5 hrs in on the 243.75's and I've noticed some drops in hash. I know machines have variance of +/- 10% sometimes but it seems like a steady but slow decline. What's weird is the time passed being only 2 days and change, compared to say a month or something.

Anyone else get this with OC'd machines ?

Power supplies.  They're probably close enough to the edge of the kind of power the S3's like (beefier than they draw) that just staying hot for a long time is enough to suck hashing power.

Do you have 2 PSU's on each OC'd unit, or only one?  And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one?

My suggestion is to either cool the PSUs and see if your rate goes up, or use more/better PSUs.  Poor power doesn't always show up in x's or -'s now that I've been playing a bit with my good S3 and just got 60 GH/s back by adding another PSU.

Worth a try!

My friend hosting them said and sent pics that each one is on a singular supply of 650W or greater with each miner using all four power ports.

Should I find out the specific PSU not that I think it matters with each one being 650w or greater.

Edit:

--- And are you using two separate 6-pin PCI power connectors for each blade (not daisy-chain style) or only one?

I actually just shot him an email about this but do you mean four cables using four ports on both the miner and PSU ?

I also dont get the beefier thing.

So I just heard back from my host.

He said hat each miner is in deed powered by all four ports on both the PSU / miner using four individual power cables. I have since asked him to please find out the specific make / model of each of these PSU's so the rail voltage info etc. can be looked up to see if maybe, just maybe, it is the PSU's which is questionable a this point since it still could just be system variance / an OC thing.

Still no word yet from my host on specific PSU's but I don't think it will matter and here's why.

I've been keeping an eye on the miners, doing refreshes every so often. Here's what I've noticed. It seems when I drop some MH one of the blade temps rise. Similar effect when I gain some MH, a temp goes down. So it would seem my issue is temperature based.

With that said, if this proves to be right and more time well tell as I continue to watch the numbers.

So... what if any alternative cooling methods can be used on overclocked S3's (237.5 and higher) ?

[twib2]

I've been keeping an eye on the miners, doing refreshes every so often. Here's what I've noticed. It seems when I drop some MH one of the blade temps rise. Similar effect when I gain some MH, a temp goes down. So it would seem my issue is temperature based.

With that said, if this proves to be right and more time well tell as I continue to watch the numbers.

So... what if any alternative cooling methods can be used on overclocked S3's (237.5 and higher) ?

Interesting - that's how I first noticed my problem, but for me it was more to do with the temperature of the PSU itself.  That's what exposed it being "on the edge."  But, you don't have quite the GH/s dip that I did, so it could well be the miner.  Either way, keep us in the loop to what the final answer is.  Good luck!

[Gogreen]

Who got their s3 kit for s1?

[CryptoGuy]

I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.

What a crock of crap.

If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.

Has anyone else had this happen???

  Someone already said it expired last week so I think.

That's BS. Had I realized they were going to expire before I could mine more coin to purchase more I would have opted for the refund in BTC. Bitmain better make this right or I will also go to a competitor. Customer service and delivery times are what set the hardware manufacturers apart.

[ftoole]

Who got their s3 kit for s1?

They aren't scheduled till before the 20th of next month.

[MoreBloodWine]

https://bitcointalk.org/index.php?topic=671189.msg8507354#msg8507354

In addition of the above linked stuff, the one miner on 243.75 that's still doing beastly ~490 has insane RMP fan speeds in excess of 12/13k. I don't know if this is a readout fluke but (have seen others reports these an speeds) that machine does have lower temps. The other two "slow" machines that are mid to low 470Gh/s with slightly higher temps than the "beast". Is there anything I can do remotely to tell their fans to run a bit faster in the 12k + RPM range to see if that will bring temps down and speeds up ?

If not I will have to talk to my host about alternative cooling methods like say removing the cases which should drop temps (two to three points) to the range I'm hoping for / like seen on the one machine doing ~490 with high RPM's.

Still wondering if anyone here has tried alternative cooling methods like just removing cases and how that worked for you.

Ty.

[visdude]

Yes, "really".  I was responding to your post at face value (I honestly thought that you didn't have a clue) so I attempted to let you be aware of a fact.  That's all.  If "discover" touched a nerve in you, that's too bad.  If it makes you feel any better, I hereby retract "discover" and substitute it with "find out".

It's not "first rodeo" for the majority of us in here either.  Therefore, the common knowledge that the quality of a PSU affects its performance is nothing new in here (or any decent tech forum for that matter) and is not exclusive to you.

To reiterate, contrary to your post (verbatim) that I originally responded to, it's a fact that the S3s have been successfully overclocked using 500W PSUs utilizing only two PCIe power inputs for each unit.  I refuse to allow disinformation to propagate.

Since we're all retract-y here, I'll choose one that actually might make a difference: I hereby retract my "a" and replace it with "your" when I was talking about the 650.

Note that I never disagreed with your assertion and even referred to it later.  Nevertheless, I still think my response will prove to be helpful, which was my only intent.  If you disagree with the crux of the advice (better or more power might be worth investigating), that's fine, but if you didn't then indulging in pedantry for the sake of a side-point just distracts.

Like I said, your OP that I originally responded to appeared to be more of a declaration which is at odds with a known fact rather than an opinion based on a personal experience, hence my attempt to steer you towards the right direction.  That's all.  However, you've cleared that up since then in your subsequent reply.  No need to get defensive.  We are all students of the game in here.

As for being a pedant, I wasn't the one who was very particular about and pointlessly quoted "discover" with quotation marks.

[Gogreen]

Who got their s3 kit for s1?

They aren't scheduled till before the 20th of next month.

oh well 

[crazyates]

Or you could have units that never get past 420 GH/s.

I had the same thing until I added more power or used better PSUs, even going from using a piss-poor 850.  If you have other PUSs handy, it might be worth it to test that and rule it out to be sure.  Other things could be network problems, pool problems, using the same miner, sub-optimal miner difficulty settings, or even the already-noted S3 mining rate instability.  I'm sure you've already ruled out most of those, just throwing them out there anyway...

That's not what I've seen from testing my S3s. I set up and configure every single one of my S3s on our testbench before they get put into production, and every single one is different. We use the same PSU (Rosewill Capstone 750-M), same killawatt, same laptop to set them up, same switch, same internet, etc.

Most of them are running at 238, so that's my basis for all my numbers. Sometimes there are 15W swings in the power consumption, and up to 20GH/s swings in what each Ant settles down for an average speed after 12 hours. Remember, this is all at 238Mhz. Obv moving up to 250 or down to 225 affect the power/speed, but I'm just comparing all my units at the same clock speed, and they're all different.

[sirux]

Should I preordered another AntMiner or will it never ROI?

[buy4crypto]

Should I preordered another AntMiner or will it never ROI?

Always a tough choice. A large facilty or 2, or a new chip comes out that is better and you could easily not ROI. On the other hand, perhaps no new advances happen, and these machines run for months with profitability. I don't think there is a great chance for ROI if you have extra taxes, or high power cost.  If you get the machine in a timely manor, at cost, with low power bills, your chances go up greatly.

[Gogreen]

Should I preordered another AntMiner or will it never ROI?

delay in shippment 20/9 and  sky rocket difficulty will further delay your roi. You can't expect bitmain to lower its s3 prices  at these time. 

The only way is for the s3 ship within 1 wk or 2 weeks  to speed up the mining .   

[mdude77]

Just wanted to add a note that since I finally got my hands on an S3, my M's Ant Monitor now has full support for S3s.

https://bitcointalk.org/index.php?topic=596178.msg6548589#msg6548589

M

[jpchrist]

I went to use my 3 unused coupons today from the Bitmain Hash speed issue and found out that they expired.

What a crock of crap.

If they dont give me my coupons back or the equal bitcoin I will not purchase their products anymore.

Has anyone else had this happen???

  Someone already said it expired last week so I think.

That's BS. Had I realized they were going to expire before I could mine more coin to purchase more I would have opted for the refund in BTC. Bitmain better make this right or I will also go to a competitor. Customer service and delivery times are what set the hardware manufacturers apart.

Dont think youre going to get much sympathy here...

[vortexz]

bitmain pleas ship b8 faster !!!the difficulty is raising with the speed of lighnting

[philipma1957]

bitmain pleas ship b8 faster !!!the difficulty is raising with the speed of lighnting

yeah 13% at best  http://bitcoincharts.com/


and over 20 % here


https://bitcoinwisdom.com/bitcoin/difficulty

[jpchrist]

bitmain pleas ship b8 faster !!!the difficulty is raising with the speed of lighnting

By the time the B8's are inhand (or shortly thereafter) difficulty might be ~50 billion (4 more increases at ~20% each). That means they will mine about .00454 BTC or $2.27 USD per day before electricity costs.  OUCH!!!

[Fahlcor]

Just wanted to add a note that since I finally got my hands on an S3, my M's Ant Monitor now has full support for S3s.

https://bitcointalk.org/index.php?topic=596178.msg6548589#msg6548589

M

Thank you, Thank you, Thank you, Thank you.

sending .01 btc your way for your valuable app.  I use it as my main program of choice to watch the ants.  I have 12 and I can't imagine watching each one separately all the time.  I feel it is worth every penny.

If you could add setting the pools on all the ants with user names ( I like to watch each one seperately on pools.) so that if we want to change all ants pools with 1 click that would be cool and worth another .01 btc for me.  And Shutting down all the ants with a click.


Thanks....

Fahlcor

[Lowell904]

Could someone please provide the code to be entered into the scheduled tasks of the gui, that would restart my miner every 6 hours?

[johnray]

bitmain pleas ship b8 faster !!!the difficulty is raising with the speed of lighnting

yeah 13% at best  http://bitcoincharts.com/


and over 20 % here


https://bitcoinwisdom.com/bitcoin/difficulty

I'm in the same situation; I greatly appreciate if these B8 are sent before.