Topic: ANTMINER S3+ Discussion and Support Thread - page 136. (Read 710164 times)

Anyone is paying attention to unknown IPs by the antminer in addition to IP of pools setup on the miner.
I am not sure if this is related to this firmware upgrade but in my case there are one or two unknown ips connected at times that I cannot figure out.

Thanks, this is a lot of helpful info.  At 110v it looks like the sweet spots are 193M, 206.25M and 231.25M and at 230v it's 200M, 218.75M and 237.5M.

So I did a little experiment with one of my Antminer S3+ units (One of the better performing ones that is able to hold any frequency setting for long durations without any 'Xs.' I essentially tested out each of the frequency settings and compared them to the wattage numbers used at that setting with 110v power, then tested again at 230v.  The results of my testing are below:

https://i.imgur.com/3MZa9r0.jpg?1

In essence, what I found was somewhat obvious...that you get better Joules/Gh at 230V than you do at 110V, regardless of the frequency the miner is set to.  I also found that the 'sweet spot' of energy used per GH/s is around the 200 MHz mark (200 MHz @ 230v and 206.25 MHz @ 110v.)  I noted that in green, which incidently was the only reading that matched the 'published' efficiency numbers.  A few notes about my testing:

1. I left each of them at the specific MHz frequency for exactly 3 hours, then recorded the Wattage and Average hashrate at that time. I was off by a few minutes sometimes, but suffice it to say I left them for at least three hours. I did note that this number is more accurate the longer you wait...however, I didn't have so much time to play with this, so there may be some variation that I couldn't account for or the numbers may change more significantly over time.

2. I used the same Antminer for every setting, the same PS (Corsair CX750 with all four PCI-E cables plugged in) and the same Kil-a-watt unit for each test.  I was using the 8/11 firmware on the unit with the updated cgminer version (4.6.0-140908) posted by ckolivas.

3. The one major variable I couldn't control for was ambient air temperature, which was generally about 5C warmer in the 230V location than in the 110V location, plus during the day there were fluctuations. This likely would affect efficiency, though probably not by too great of a deal.

4. I used three variables which you don't see here...the price per kilowatt/hour ($0.10,) the current price of BTC in USD ($351.59,) and the amount of BTC/Gh/day based on difficulty (0.00001398 currently)

5. I included the power usage of the unit above when it is not hashing (noted as 0) just to note the overhead that the system takes up if it is on but not running.

Anyway, hope you can get some use out of this...at a minimum it taught me that it's not just a myth that 230V is more cost-efficient than 110V, but when it comes down to it, it's only more efficient by 1 or 2 cents a day...

For faster service i would call if you live in the US trust me i called i had a new one out to me after i shipped off the defective one . the tech even gave me free shipping and told me if  got it to ups that day he would ship my  replacement once it was in the UPS system other wise i had to pay shipping to them . but he told me not every is as lucky as i was they don't all ways do that . why i say call and talk to them  you never know .

Its saying NO but things can change any moment.  Its a wild wild BTC world.  Happy Hashing!

maybe here : https://www.112bit.com/product/s1-upgrade-kit-september-20th/


but not to sure if you can buy them it lets me put it in the cart etc but i haven't tried to actually pay it . that is kind of to much for me with shipping sense if i shop around i can find a full S3, i don't care what B# it might be for less by maybe 40 to 60 $ with free shipping and have in the US .

they told me no in the US over the phone. but that doesn't mean they won't. btw i was offered to buy some parts in the US for S3 cost was a lot  but the tech told me parts won't be cheap.

There is something strange, you service the Bitmain warranty yet you do not know that Bitmain expressly said in these pages that the S1 upgrade kit has been discontinued ..... anyway, there you have it.

Tough question... Would say.... start plan for the S3+ unit...    sorry  or may be miracle would happen but S3+ be the best bet!

Does anyone know if Bitmain will sell the S1 upgrade kits again? I'm very happy with the couple I purchased and would like more.

This is a though one, but we PM you.  Please contact the techs or the reps.  We should be able to assist you one way or the other.

+1-844-248-6246  or 844-BIT-MAIN  Option 2 or 0

go back 1 page... bitmain warranty just posted contact info. hope they can help you 

Hi there, the right side on my controller does not works, neither the right blade.
I not bought from the factory, instead ebay and probably one of the first batches.
Was working fine since July and this last sunday all of a sudden the right blade fail.
Tested both using another S3 that is working, left side and left blade are good.
Any chance Bitmain sell controllers and blades as a part?
Or simply better to buy another?

i'm only 2.5 hours into the recent firmware and it is running much better than the last attempt. Discards are WAY down (i mine ppc if that matters) HW errors are down, one miner does have a funky control board issue related to the fans and temp sensor and it throws a low% of errors @ 237.5 and they're almost virtually gone now... but the sensor is still way off. in about 3 hours i'll post a before and after shots comparing 5 hours of new firmware vs the 17 hours or so before it. Hash speeds are virtually identical so far...

No worries man. Thanks for testing out the crappy one and warning me. 

Nice one dude, thanks  I'll try it out on a couple to start with then......

We are sorry to hear that you are having problem.

If you could, please call +1-844-248-6246 and Option 2, so the tech may be able to assist you over the phone and teamviewer remote access.

Everything looks good. Temps are the same for me. It actually made a couple of my problem units run at normal speeds.

https://i.imgur.com/uzq7Xfx.jpg

I think it is perfectly safe.

Hello. Bitmain, or maybe someone could help me. S3+ b10 is arrived, on of them doesn`t work normal. Red light is on and don`t turn off and there is no information in Miner Status

I connect other control board (from working S3), but result is the same. What can it be? Blades are not tested yet.

And what does Red light saying about?

Is it worth the risk do you think? Are the temps/stale/reject rates any better/worse?

Is it safe?