Topic: ANTMINER S3+ Discussion and Support Thread - page 286. (Read 710164 times)

Clearly NOT a dorm room

Good point. I guess I just panicked because the hardware error increase was so dramatic so quickly.

I might try bumping it back up to 237.5 and leaving it for a day, then recompute the stats. I might also try bumping up the stock unit. It's worth seeing what it can do.

You're welcome.

Sorry, I don't know eMule   I used eDonkey years ago for online gaming, and it just stuck.

Yes am interested, thanks.
Especially for the stat analysis and logic behind it.

On a different note, eMule has be a close friend of mine for years.
Are you related?

That's good stats, but why do you care so much about the HW rate? All what is important is production per time period. 824 errors if not possible to calculate without diff A and diff R numbers. maybe it is still low. I would say that if HW error (calculated properly) is less than 1%, then it is still worth it to go to 237.5. I have one S3 that has one asic with an X at 237.5, but total speed is still 464-465 GH, which is better than 441, so I stay with 237.5 for it.

There is Magic Smoke that is trapped inside all electronics devices.
The Magic Smoke has escaped those components.
You must replace those components with new components that have the Magic Smoke still imprisoned in them.
Then your S3 will function again.

Seriously, from your pics, looks like a couple of SMD (Surface Mount Device) resistors/capacitors experienced an excessive over current condition.
Can't read the litho on the card next to the components in your pics. RXXX = a resistor, CXXX = a capacitor where XXX is the component number.
Take a que-tip dipped in iso-propol alcohol and clean off the charring next to those components to be able to read the litho on the circuit card. Make sure you're well grounded when doing this, else static electricity might toast something else.

To read the markings on the components that identify their values you'll likely have to look at another undamaged machine.
This type of component is dirt cheap, shipping on new parts will likely exceed the cost of all those components combined. We're talking a total order $$$ amount under $25.
They can be ordered from a plethora of online sources. I order a lot from Digikey cuz' they're nearby and shipping times are brief.
Once obtained and still being well grounded, de-solder the burnt parts and solder in the new.

Identifying why the Magic Smoke escaped those components is of particular interest to me and likely to others.

If anyone is interested, I'm posting the stats on my two B3 units where one is slightly over clocked and the other is stock. I picked which unit to over clock based on the fact that it had the lowest hardware errors after running for several days.

Note that both units are running at a colo facility with 208 volt power and temperature control. The stock unit runs about 38 degrees and the over clocked one between 38 and 39.

I'm using 2 CX750M PSUs, one per S3. I know it's overkill, but I bought them before we all found out that the S3s are not over clock friendly. I used all 4 power connectors because I wanted to experiment with over clocking from a distance without having to go to colo and move plugs around. FYI, none of the plugs or cables have ever felt warm to the touch.

Here are the stats after running for almost 6 days with the above configuration:

Frequency	GH/s	HW	DiffA	DiffR	Error Rate %
218.75	441.44	1,732	50,942,208	63,488	0.00339558387456823
225	453.36	8,056	52,252,928	71,680	0.0153938274573601

The delta is that the over clocked unit is providing about 2.7% more accepts with about 3.5 times more hardware errors. Prior to over clocking the hardware errors were quite a bit less than the current stock unit. But the nearly 3% increase in accepts seems worth it to me.

Note that I also tried a frequency of 237.5 on the over clocked unit, but I got 824 HW errors after 20 minutes. This seemed like an insane error rate, so I backed it off to 225.

Are you guys using high joules surge protectors for your miners?
If not, you are risking the same as shown (boards blown). There are plenty of thunderstorms in the summer in my area, so I stocked up at the Microcenter on a few of surge protectors.

Bank? What website did u order from?

We really need a bitmain FAQ. The same questions come up over and over bloating this thread.

anyone know if the batch 6 gear has begun shipping?  It may start early Right now it is 11pm in china on sunday.

 I ask because my  edit button on my batch 6 order has dropped off.

Is there any trick to make my webbrowser store the password?
Tried IE, Mozilla and Chrome. I store the passwords with each of them, but every next login it will no work again.

Reply from bitmaintech can be instant or sometimes it will take some time.
No no invoice is provided with the shipment and you can use the one available in the website.
In the shipping declaration unlike S1 and S2 they declared the full correct value in US dollar.
In declaration the product is described as "Bitcoin Miner". No customs issues.
They may call if some officers don't know what Bitcoin Miner is. Bitcoin is famous but mining thing is not so familiar to all.

A few questions for anyone who has imported Antminer to EU.
Is there any invoice with the shipment? Value?
How the miner is described in papers? Any custom problems?
Thanks!

How long does it take BITMAIN to reply to an order???

It has been 5 days since I send them the remittance statement for an order of some S3s.I still havent recieve any feedback from them,not a word.I sent copy of the message,that I got from my bank with my shipping adress.Is this normal?

Here is my DIY thread for sizing/finding a Power Supply for S3 or any other dc device.
https://bitcointalksearch.org/topic/diy-allcoinminers-power-supply-sizing-guide-732106

Hi I have been on another thread a pool one and a user which we been trying to help pointed something out after looking around a few threads I noticed what this user pointed out also appears on alot of the screenshots of diff users....  

Now to the poss bug....    On the miners status page where is is reporting the diff1 shares vs the diffA shares there is a massive diffence there where in theory the diff 1 and the diff a should be very close to each other in terms of numbers like they are on the s1

For examples of this refer to this thread and the screenshots of different peoples s3 rigs https://bitcointa.lk/threads/antminer-s3-discussion-and-support-thread.335840/page-105

You will notice every screen shot there is a massive diff in reported diff1 shares vs the diffa shares.    Now in theory that diff 1 number should be higher or very close to the diffa number not miles lower than the diff A shares even when ya look at the share diff and times the shares in all of them screenshots the diff1 number is well under what a simple bit of maths shows that diff1 should be...

Cheers


just further to this what is that diff 1 number reporting as diff1 shares atm ?  <<<<< this one more out of interest....

Technically yes per allcoins reply since one order contains two miners given the current MOQ.

Can use 2 coupons per order.

You can use 1 coupon per miner, so if you order 2 you can use 2 coupons..