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Yes people have used wire transfer. Um, it is NOT free. The banks usually on your end and Bitmain's end will both charge fees. Never used wire so don't know how much but someone here HAS mentioned/talked about it. Throw in the hassle factor/your time for going to the bank and I'd bet it works out the same either way.
edit: Actually, just ask your bank what their wire fee is...
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<snip>
UfoMainers scammers? It was clear from the first day?
Damn, but why did not I find any negative reviews and records about them from a month ago? I translated them 20 bitcoins and silence, no parcel
There is no government for them? Where to find them?
Has anyone dealt with this issue?
Tell me how to write a complaint on the form of IC3? Can it work?
THX...
1st, sorry to say but safe bet your BTC is gone forever... 2nd, how did you search? I just entered "UFOminers scam" and Goolge returned over 10 pages of links. 1st page of links are for Dec 2016 .... The complaint form is for the Federal database of complaints against a company. Is the 1st step required if you try to sue them and/or have them prosecuted. If you do -- good luck. Be aware that YOU will have lawyer fees to pay. IF the people can be found/tried/convicted there remains the big IF and WILL they pay restitution. |
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<snip?
Hey NotFuzzy, regarding your back-up power source being a genset, have you ever had to run your miners off of that back-up? I'm curious is there's any power quality issues from a genset that would require some kind of protection for your miners, say a UPS or something in between? I'm curious to know what I will need to consider in regards to design if I also use a back-up genset.
Yes I've had miners running on the generators both at home and at work with no issues (as expected). The only power quality issue a generator usually will have is frequency control when large loads like AC or a refrigerator turn on/off (speed of motor changes briefly making freq change) and miner PSU's could care less about it. If the only thing on the genset is miners then the load will be very steady anyway. As for UPS's - that is another story. Depending on just how much freq changes a UPS may pick that up as a problem and switch over. The brief transfer time may cause another blip in load causing another blip in freq, rinse and repeat. The specific Cyberpower UPS's I use have a generator-mode to address that. |
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will the S9's likely be damaged? YES! For one you risk the large caps being damaged by the freezing. And then there are thermal stresses on soldered connections... Not so much 'making them come loose', more like it causing the solder to start crystallizing. Lead-free solder has enough of that issue at normal temps and deep cold makes it worse. As a side note: Eliminating solder problems such as crystallization, whiskers/dendrite growth, and a few other things is why alloys containing lead were used in the first place. To-date, NOTHING has been found to take the place of having lead in the mix. Lead-free solder alloys have gotten better but will never be as good when it comes to reliability. Just the nature of the beast. Install heaters to keep above 0C, preferably keep above 10C and you will be fine. Of course that means having vents with louvers that can be closed to keep the heat in when needed. Before starting I highly suggest taking them up to around 15-20C for at least 15min or more before firing them up. |
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Is easy go to http://web.archive.org and take a look at their front page, Don't *have* to register or Donate but is of course nice to do to support them. Only restriction seems to be if a site blocks crawlers -- like Google's cached pages. Cointelegraph also refused allowing to be Waybacked. There are a couple URL entry boxes to use, one is tagged to specifically add pages and is best place to start if the site/pages have not already been added by someone else. |
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Once I have samples of the new PCB in hand and they're tested to work, I may do a "limited first run" sale of them, maybe a dozen or so, to put toward a full batch. <raises hand> Sign me up for one  |
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you can add cheap offline UPS if the sole purpose is to clear the peaks and provide at leats a couple of minutes of online time,just buy the cheapest ones or you can use https://www.amazon.com/gp/product/B003Y24DEU for example it won't be able to keep all five miners online but will provide surge protection and level the peaks The cheap ones are honestly not worth it at all, if you're going to get a UPS get a good one that'll keep it up for as long as possible. The cheaper you go the lower the quality and the less time it adds. Also, we're talking about S9s and 865 watts won't keep it running for long. If it runs at all. Even a halfway-decent UPS should shut down as soon as you exceed its rating. |
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https://foxminers.com/Who's in CA? Who can check for bad people or not? Swindle to fraud Product Features: <utter trash and snipped for space> LOL face palm Warranty: 2 Years 48 chips, 0.02 W/GH/s, & 75th, could you IMAGINE?  haha, ovbious scam is ovbious ;p the 2 year warranty alone says it is a scam..you don't have a warranty on a product that with even reasonable difficulty will not pay to mine crypto the 2nd year that is just stupid .. also such a product would be in full REVIEW mode by every major crypto magazine and site with the specs and price naw scam city..stay away....always be cautious if you are the first to hear about something..likely not first ..just first to think so because it is a scam Also 28nm chip having much betetr efficency per watt than ShitMain Is well documented as a scam in the BTC hardware section and very-on going to say the least. https://bitcointalk.org/index.php?topic=1879542.0You want real damning? They plagiarized the data sheet for SFARADS old dual miner chip released in Feb-March of 2014. Side-by-side comp of the SFARAD data sheet and the fake one from Foxminers https://draftable.com/compare/hYFmXGvTJdxh'nuff said |
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Narf... Google blocks the Wayback crawler from them. In a way makes sense so someone does not make their own search site based on pilfered Google content... |
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*** Foxminers LLC If someone buys this miner without a well-known and trusted Forum User 1st getting one for doing a review and posting it here then well, you have been warned ***Was poking around the Wayback'd pages from 2014. The specs for their 2.1THs rig dated April 2014 look - right. Totally on-par with what 28nm chips and rigs did back then: ASICs: 28nm Golden Nonce Guaranteed Performance: 1900 GH/s Power consumption: 1 Watt/GH Chassis: 480(W) x 170(H) x 450(D) mm Cooling System: 3 x High-Performance Liquid Cooling Units PSU: 2 x High Performance 750W Power Supply A) Wonder if any were actually made and if so, delivered? B) If 'yes' to 'A' then, are these the same folks gone bad or has the Foxminers name also been hijacked by these scammers? Then again, the Golden Nonce was a chip from <cough> Hashfast. https://en.bitcoin.it/wiki/List_of_Bitcoin_mining_ASICs and we know how they turned out.... Birds of a feather and all that rot...
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re: removing the epoxy
Your mention of scraping got me thinking. Not heat - use canned cold-spray or LN2 if ya got it. Make brittle and should chip off nicely. Epoxies made to take heat usually do not like deep cold and embrittle easily, comes with the turf of what is intended for. Hmm....
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@Bitmain, would you guys be willing to offer an out of warranty repair service for this dead temp sensor chip issue? Even if it costs us $50 it would still be better than a dead ~$300 blade.
If in North America talk to BitmainWarranty in Colorado about it. Also have several locations in other parts of the world as well. https://bitmainwarranty.comFrom a power electronics design view, having a temp sensor on the die is the best and most accurate thing to do. That said, with so many chips in these I wonder if there is way to just have the miner look at a different chip? Heck, all chips talk over a single serial bus so should just be a matter of reassigning which to take data from. Problem solved. As for removing the chips... Check the s7 threads and things dealing with sidehacks 2Pac stick and upcoming Pod miners. Assuming Bitmain did the same thing with the s9/T9 (looks like it) then fuggitaboutit. If ya know which chip to attack, maybe but it is a risky process worsened but another design point: They made damn sure it would be very hard for the heat sinks to get knocked off buy using a very tough thermal epoxy to bond the topside heatsink to the chip. A heat gun to applied to the heatsink will soften it enough to pull it off. So far so good. Then you see that when assembled the epoxy has flowed around the outside of the chip itself and so far the normal solvents will not touch it. Design plus for mechanics and increasing thermal contact area a bit. Con is near impossible to replace a chip without risking damage to the board. edit: Just saw Fanatic's post above ^^ Bet reflowing the new chip on is fun with the fine lead pitch... Cool but still would rather sent to CO. $14.95 to ship them a board and that is with it insured for $450 in case it takes a wander. |
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Want to apologize about this being off topic? Nope. Ignore now active. |
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How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets? It is the price that BITMAIN gives consumers that buy the S9/T9. They list price in US$ and then they use 1245 when everywhere was trading $100 above that (and even BTC-e was above that) as their exchange rate for consumers to pay. How do you think that does not concern the S9? Ok, it relates to the s9. Fine. However this is the HARDWARE section for technical discussions about hardware. Pricing is not a hardware problem... |
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How come the BTC Rate on the bitmain site is constantly $100 below market? are they keying of BTC-e?
"below Market' is a relative term. All depends on what currency exchanges you and Bitmain uses. There are several and can often be a fair spread between them. One site of many to compare exchange rates: https://bitcoinity.org/markets/coinbase/USDAnd this is not s9 question. Belongs elsewhere, possibly under Markets? |
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I can close the post if I New how to?
Look at the lower-left corner at the bottom of the page. You can lock it there. |
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I still believe it is possible and i would be glad if someone in the word would build this and try it in his best way In other words you don't want to bother trying to do it yourself and want someone else to put their time and effort into it...  |
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