Topic: ANTMINER S4 Discussion and Support Thread - page 35. (Read 301481 times)

REGARDING PRODUCT SUPPORTS & WARRANTY

Warranty & Support is provided to the customers of BITMAIN who purchased Antminer Product Line directly from BITMAIN.  

BITMAIN product is designed specific to the specifications advertised and any modification from the original spec may damage the hardware and any modification is not recommended by BITMAIN.  Also, unauthorized modification will void the warranty.

All product come with 90-day warranty from the day it shipped from the factory.  If you purchased Bitmain product from outside Bitmain, your product may have no warranty as the term of the original purchaser's price term, could be used, or simply out of warranty as the previous owner may have had the item for 90-day.

When you purchase items from a third party, we may help you trouble shoot it and guide you to fix the problems but we can't honor the sales term.  As some of you chose to buy from the third party rather than directly from Bitmain.  We can NOT resolve your refund request or item exchange request for items you purchased Second-Handed.  

Bitmain Direct Customers are still receiving replacement S4 PSU, Fan, Hashign PCB, and other replacement parts for S4 as long as they have a valid warranty. (New S4 was 90-day and the used S4 was 30-day and 90-days depends on the sales term)

Bitmain Direct Sales.  (Highly Requested Credit Card Sale is available via DHGate)

http://www.bitmaintech.com

http://www.dhgate.com/product/bitmain-antminer-s5-1155gh-s-0-51j-g-batch/216320560.html


USA/EU based team may able to assist you when you are stuck between the third party seller and your troubled Bitmain product, but team can't give you a new parts just because it is Bitmain product.  (Customers need to take a dispute with the seller and their Bank and Credit Card Company to deal with)

Voltage and Frequency Control is set at the Advertised Specification to avoid damaging the hardware.  Wrong value in these area can stop the miner from operating or damage the parts or even becomes the FIRE HAZARD.  

S4 power draw is about 1380W when the PSU is 1400W.  When you overclock the S4, the power draw will be higher than the PSU may be able to handle.  The fans are implemented with RPM control to keep the miner cold enough to operate, when it is over clocked the heat management will more than likely not able to keep up and highly likely result in a damaged parts inside or the fans end up spinning at the max speed and shortening the life of the fan.

Under-volting option may or may not be available in the future but it is an item that is constantly looked into by the engineers in Beijing and Shenzhen. (S4 was not advertised to be able to under-volt at the time of the sales)

Damaged S4 PSU (EXPIRED WARRANTY/OUT OF WARRANTY) may be available for Service at both USA and EU service center for $25USD/25 Euro.   please contact [email protected] for more info.

Very limited quantity of Original S4 fans are available for sale as well.  


Thank you

This has been a problem for a long time.
Maybe the posts were removed, I am not wasting more time on BITMAIN searching the thread, but others including myself raised these same points. Sorry I missed your post regarding pitching in for a decent firmware. I would have pitched in.
BITSTAIN are a poor example of what a manufacturer should be and it sincerely makes me nauseous they are considered a manufacturer. They are an integrator. A shoddy one at that. SPtech have class and have proven it.

I do not own an S5, and I never plan to purchase another BITSTAIN product.
If by some chance they end up being the only company selling miners or they come out with some revolutionary product I recommend doubling the price they charge to compensate yourself for the headaches, lost mining time, and loss of functioning brain cells you endure to deal with them.
GAWD I cannot wait until SPT release next gen so I can finally be rid of every black box I own.

I do want to say I have worked with some of their guys who answer the tech line, Z for one, who are knowledgeable and friendly. They respond to e-mails and calls and get back with you on parts. Those guys are hindered in what they can do to help by their superiors. Yoshi is a joke, and a sincere liar. He may do something for someone from time to time, but consistently a crap person to do business with.

The decisions this company have made to screw over the miners is unreal.
I know people will buy where they see product, but one day I think Karma will bite them hard enough for all of us, and bite them right where it hurts the most. Closing their doors would be too nice for them. They manipulate the price, put out bad firmware, lie, lie, and lie again.

I don't pay much attention to the 5s rate since it isn't important, but I've never seen such large swings on them locally. I would expect a pool's measurement to vary that much, though. As long as your average is where it should be, I wouldn't worry about it.

I would have expected a greater variance on the 5s hashrate than what yours appear to be showing.  On a sample of 10 units, I see 5s hashrates vary anywhere from <1TH up to over 3TH and sometimes even 6TH.

Are you running the latest Jan. 29th firmware? What you're describing was a problem for me with Oct. 16th firmware or older, but it has never happened with the latest.

Done all the troubleshooting but it dint fix. The machines are at a hosting location.

The machine was power cycled and it started hashing again. But the main problem seems still unresolved.

When pool settings are changed for few times, machines stop functioning. Machine has to power cycled COMPULSORY to bring it back, it just becomes unresponsive to anything.
I mailed the bitmain the same and this was their reply, hope it helps someone.

Before finding out what I found out, I thought you were being a little hard by saying they were cheating us. I can now, without a doubt, say that you are correct. We are being cheated! The S4 has less functionality then when it was released, it can no longer be underclocked to achieve the low W/GH/s figures shown in the first post of this thread, and every S4 out there is consuming more watts than it should because of the broken and overvolted J7 connector. Completely unacceptable!!

There is now a software fix for the voltage being locked, but J7 is still a problem. It remains uncontrollable, and to add insult to injury it is getting 0.765v instead of the stock 0.720v it should be getting.

The software fix is not publicly available currently. It will be discussed in my thread. I'll be posting a donation address that belongs to the dev who fixed the sabotaged firmware, and he will see fit to release it when he's ready.

i found that hardware problems and i fixed with cheating boards. but i dont know linux much well, i ask to smith that "how to rebuild initramfs" but he cant help me. if he show how to do that, i will fix that with bbb software, because i know this problems core. i am an 40 years old engineer, sorry for i am not linux guy. but also many thanks to PRELUDE,for to be my voice in this forum and for this biiiiiiiig problem.
DONT FORGET, BITMAIN IS CHEATING US
also we know cheap devices are pain in the ass but THIS IS NOT CHEAP ! THIS MUST TO BE PERFECT AS THEY SAID.

BITMAIN's hardware is fine, the problem is the software is very lacking, and when they include a PSU with a miner it's never good enough. The S4's PSU is a joke, and should really not be run at any settings higher than stock. Stock is even too much for some of them. I never had an S2, but that was also an underpowered (though brand name) PSU.

Here's a free suggestion, BITMAIN: On your next big miner, also include external PCI-e connectors on the back of the unit so we can easily replace your PSU when it fails if it isn't a standard form factor PSU.

I know they don't care, in fact I've found out that the thing I've been whining about for the last month (voltage control not working in latest firmware) was done intentionally by BITMAIN, yet they (BitmainWarranty anyways, though he may be unaware) pretend their firmware developers are working on a fix.   This was done, undoubtedly, to protect themselves (and retards who don't know better) from dead PSUs from overclocking/overvolting.  Frequency was also supposed to be locked down in the Jan. 29th firmware, but their lock didn't work on that for some reason. I find it deplorable that BITMAIN is gimping our hardware intentionally. How the hell am I supposed to undervolt/underclock and stay competitive with a locked firmware, BITMAIN?!?

Anways, that's all I'll say on the subject for the moment. I've been fuming mad at BITMAIN since I found out how they're intentionally breaking our S4s and I'm working on a very revealing thread concerning S4s and BITMAIN's lovely practices.

About a week ago I asked for pledges/donations to get this fixed independently, and not a single person even offered to chip in. Well, I've footed the bill myself and all my S4s are fixed with working voltage adjustments working on the latest firmware. For this reason, I haven't been in any rush making my thread regarding BITMAIN and the S4 situation.

Now, it looks like I'll be waiting for the official S4+ thread to come along, should be a nice sister thread. I'll make sure it stays stuck to the S4+ thread until all these S4 "issues" are fixed. What do you think, BITMAIN? Do you want a shit load of negative publicity and lost S4+ sales from that thread, or would it be better to get off your asses, apologize to us, and fix our intentionally broken S4s once and for all?

By the way, here's a look at what proper, non-BITMAIN sabotaged S4s look like with real PSUs:



Your move, BITMAIN.

I hope your hardware doesn't meet an early demise like mine did.

M

only problem is that they do have one of the best machines as there is not much good alternative...
to be hunest If I was in there position I would probably also say take it or leave it. I dont care

Bitmain doesn't seem to care.

Furthermore, the hardware is junk.  They told me their supplier of PSUs only offers a 90 day warranty.  That's why they won't offer you and me more than 90 days on the PSU.

I'm done with Bitmain, and I advise everyone else to proceed with extreme caution with considering purchasing Bitmain hardware or services. 

They've lost their way, and they don't care.

M

Bitmain, can you please fix the long outstanding bugs with the S4 before releasing an S4+? Worst bug of all being the J7 connected hash boards getting wayyyyy overvolted. I guarantee that contributed to a lot of dead PSUs. The S4 sucks a lot more power from the wall than it needs to because of that bug!!!

Possible solution to the problem:

https://bitmain.zendesk.com/hc/en-us/articles/203545769-Blank-LCD-Screen

https://bitmain.zendesk.com/hc/en-us/articles/204339655-How-to-create-a-bootable-MicroSD-card-with-factory-setting-

Well for those of you handy with repairing these..I just listed my antminer S4 on Ebay starting at $49 , no reserve. It is as-is. It powers on and lights the LED display , but led display is blank. Ethernet port flickers. Thats all I know. PLEASE DO NOT EMAIL/PM ME WITH QUESTIONS, BECAUSE IF I KNEW MORE I WOULD BE ABLE TO FIX THIS! . Im looking to just sell. Not troubleshoot.

I have 100% feedback with 800+ transactions. Shipping inside usa ONLY!

Payment in bitcoin or paypal

Here it is: http://www.ebay.com/itm/-/281651706290?

Vegas

Have any idea on specs? Power draw? Hash speed? Noise?

Vegas

Confirmed with Bitmain.   S4+ inbound   should be announced officially soon.

I just got 4x of this fan;
Noctua NF-F12 industrialPPC-3000 PWM, 120mm

Very impressed with the noice and quality, but it cant cool down the S4. Temps went up by 12 degree.

Have anybody any good suggestion about a fan for replacment? 3 of my fans are dead and I need to replace them. I dont care about the noice, I just want some good fans. Specially if they come having extra long wires it would  be perfect.

thanks!

Yes.


There's actually 3 that I know about, 1 is PCI-e version, next is nut/bolt version, and the last is a screw down terminal. I don't have pictures on hand, but thanks for telling me what to look for.

The reason I ask, is that I have reversed the fans in My S4s, so that exhaust is in front of the S4 (where the screen is) and now I'm probably over cooling the temperature chip and getting a false reading of the actual board temps. I'll have to do some testing to be sure, but I might have to put them back as they were originally and just have the S4s sitting backwards on my shelf.


All of my S4s are powered by IBM 2000W server PSUs. Yes, you could cut your wires, but then forget about selling your PSUs down the line. Personally, I would find a quality PCI-e 6 pin to 8 pin GPU adapter with at least 3x 18AWG wires and cut that instead of cutting the PSU's wires.