Why can't she leave them in the same place they were when she tried to coup? Because in her mind she sees nothing wrong with gleefully crossing the line between protest and criminal actions. Of course the rainbow-farting Unicorns that live in her world also said it was ok to blindly follow her Supreme Leader... |
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Ja, as I recall there is is a 1k character limit to it. No matter what, far more readable now  |
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PLEASE learn how to use the Forum correctly... Use the # code function to put all that into a scrollable format. Requested mods to fix that wall of text.... edit: don't know if mods or OP did it but fixed  |
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I mine and hold only BTC and consider all the other crypto coins to be trash. Yes, some others like ETH and Litecoin do have value to some folks, most alts are pure crap created by pump & dump scammers.
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What were these guys thinking? Rioting in the capital and all is going to be fine?
Yes, it's bizarre. Most people would think if they did something illegal somewhere where there are a load of security cameras and TV crews, they might get identified and face consequences further down the line. Perhaps it's a mob mentality thing that nothing can hurt them because they are part of a group, and they don't consider the outcome for themselves as individuals. I don't know. Some weird psychology though. Yep, the Pro-Trump insurgents are idiots. Yes, I said insurgents as many who got inside had a definite agenda and it was not 'protest'. Rioters at least have the slim excuse of saying 'I just got carried away by the moment and mood/energy of the crowd'. Several people are recorded showing them carrying bundles of tac-loop handcuffs - so what, they were planning on taking Congressional members hostage until their demands were met? Just how would that fit with the idea of a protest? Ans: It doesn't. They deserve the full weight of the Law thrown at them. Being put onto a no-fly list should be the least of their worries. |
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Would definitely be interested in a couple to point at my Kanopool solo account along with your sticks that are already happily mining there.
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using a 300mm wafer with 5x5mm die w/0.25mm scribe lines & default edge loss and excellent 97% good yield produces 2,248 usable dies per that yield calculator. Given the still short good-enough-for-production age of 7-5nm tech and increasing defect rate to 5 per sqcm still gives 88% yield and 2,017 usable chips per wafer. Not bad but do remember that calculator and most others do not predict speed performance which can vary quite widely. The calculators only account for hard faults. Regarding how much real estate the chip has: Like gpu chips that is because they DO contain a massive amount of transistors used as cores. Unlike gpu's, mining ASIC cores are far more simple as they cannot be programmed on-the-fly - that translates into fewer connections to now unneeded different intermediate circuits. Space that would have been used by the intermediate circuits now goes to more identical cores so just a few litho masks needed to create and connect the logic circuits. For some reason for the T15 chips, 256 cores per chip rings a bell... Odds are the s17 & 19 pack in even more. Good part about that is that a chip can have many dead cores from a hard defect but the chip is still usable, just lower number of cores cycling per clock. End result is why I can see the chips being what I consider amazingly inexpensive. I can also see why TSMC and other Foundries have now given the <7nm mining chips a lower priority over much more complex and ergo higher value chips. Not exactly fair considering that from what I've seen, since around start of the 16nm node miner chips have been rather excellent mass-production testbeds for the Foundries. Yeah, Apple et al paid for the research and equipment used to do it but making the simple and very fault tolerant miner chips gave TSMC and Samsung the process expertise to use those nodes to produce more complex and more valuable chips en-masse. That said, there is still very limited production capacity for chips using the still at cutting edge <7nm nodes. That will not change for several years. Only 1 company makes the EUV stepper/scanners used for the photolithography and they are very massive and complex beasts that cannot be mass produced. The handfull of foundries that can produce the chips - Intel, TSMC, Samsung, and Global all need them. I'll have to find the article but as I recall they can make only a couple dozen per year, |
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Ja, insanity ^^ all around! In other news, just sent a wire transfer to my mortgage company to pay off my house using coin I cashed out at $25k late December And no I do not regret selling at that price. Even though would have been nice to exchange at higher pricing, whoda ever thunk it would continue to skyrocket like it has! When I setup the trade in early Dec with BTC banging around $15-16k, $25k seemed like a good *maybe* target to trigger the sale at. I would have loved to sell higher but it is what it is and I can live with that. No matter what I still have a tidy sum of BTC left for a retirement nest egg plus no more mortgage to pay off  |
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I have a bunch of dead S17 chips, I'll see if I can grind one down to expose the die. Please do! I was going to ask if anyone could do that as a quick & dirty way to find out. If you have access to nitric acid and proper PPE a good breakdown of non-destructive decapping of IC's is here. There are others as well, just do a search using "Decapping IC's". |
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Cost to make a wafer is a lot harder to pin down. For us outsiders who are not TSMC customers I doubt we can get any hard numbers, just (wildly) guess. The only 'real' numbers that I've seen bandied about is that the photolithography masks for 5nm node cost around 1.5 million USD each and typical lifetime for them is maybe 50k wafers - probably less - and that is hoping/praying that nothing happens to them before expected EOL. Chips have several layers to them, anywhere from 3 to 7 or more and each uses a different mask. Since mining ASIC's are very simple circuits there should be only a few layers to them. Then there is the cost of the EUV lightsource from ASML/Cymer, which in 2017 was around 500 million each (I'll look up where I got that from to verify). Speaking of which - good article about that from 2017 here. That article also pegs throughput at 100 wafers/hr but again that was from 2017. Though it is from 2016, another good one is here. I know there has been a few significant improvements since then so for current rates I'll stick to the 150 wafers/hr I gave earlier. No matter what, all I come up with is that it is an insanely high cost process that is not really suited for making what needs to be 'cheap' chips... |
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Using the wafer yield calculator here and using 12" wafer, a 10mm chip size with die size of 8x8mm and zero defects it comes up with a max of 904 chips per wafer. With default values for defects, 848 good dies per wafer. That is not very many for using such a high cost node size... AND that is assuming 93.83% yield which I highly doubt is being achieved. |
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So they've just bought 100k miners?
No, the Coindesk article said they will have a total of 100k miners when they are delivered so the 100k includes older miners (s17's?) they already have. The sidebar link about Marathon group states that they have 'only' 21.5k of the S19 Pro's on order. Still one frickin' huge number of chips though. Always wondered, how much would that 1 million mean in terms of days at TMSC full capacity? No idea how to approximate it.
For a start, how many chips are in the S19 and what are the dimension of the chip package itself? We can safely assume the 7-5nm nodes are being produced on 12" wafers and the actual dimensions of Silicon inside a chip is usually around 50 to 80% of final package size. How many mm square are the chips they use? There are stitching losses when fitting square patterns on a round wafer plus each wafer also contains alignment and witness areas so those have to be accounted for as well. Playing with those numbers will give a good idea of how many chips are on a wafer. Final factor is a rule of thumb value: It takes around 30 days for wafers to go through the production systems. Once the production pipeline is full with any one device, no idea how many wafers/hr are ran though I seem to recall discussions of an EUV lithography throughput of 150 wafers/hr per-stepper as a target mid last year. edit: found a wafer yield calculator There are others, just Google "Wafer yield calculator". Typical street width (scribe lines) to use is 10 mil (0.254mm) and use a wafer diameter of 12" (300mm). Beyond that we need the chip size so anyone have the dimensions of a S17 chip? Odds are the s19's will be same physical chip size. |
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Well now - was at the Canaan.io site looking for info on chips used in the A12xx series and came across their new offering of a miner designed for flowing tank immersion. https://canaan.io/product/avalon-immersion-cooling-minerInfo on the A12 chips has been removed but late last year I recall seeing them being on TSMC's 14/12nm node. Certainly not cutting edge but the plus side is that there is a lot of Foundry production capacity for chips above 10nm so Canaan should have no chip sourcing problems. Bitmain on the other hand - because all new chips used for the latest phones and such have moved to the <7nm nodes they are hurting. Apple & other phone makers, AMD, NVIDIA, Cisco and other firms have bought up all of 2021 production capacity. If BM did not reserve enough capacity they are screwed... Back to that Canaan tank miner: I really like that idea vs using cooling plates like BM chose to do. Perhaps not as elegant but far fewer cooling connections to worry about. Cannan has a video on it here@Phil, Ja. That is the biggest killer about BM pushing delivery out to 6+ months and may partly be why they are currently only accepting payment in fiat: If folks were able to pay in BTC right now, just like you when gear is finally delivered that coin may be worth 2x or more the value when you paid. People would bitch up a storm about that so forcing payment in fiat eliminates that complaint point. |
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Done. Added local rules to OP for this thread.
Damn! +10% projected diff increase, wonder why it took so long?
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Hopefully you meant to say thermally conductive glue (epoxy) such as Arctic Alumina or Arctic Silver. Regular thermal paste will not hold the heatsinks in place.
Could it be the cause of the problem - yes. Would replacing the heatsinks fix it - unknown.
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When it hit $25k I sold enough BTC to pay off the mortgage on my house + all taxes due from the sale That was about 1/3rd of my holdings earned by mining and I'm keeping the rest as a retirement nest egg. |
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Since Phil has not started one yet for this year guess I will  Damn 2021 has started with a bang!  =  For a while, skyrocketing exchange rate despite falling diff. Whoda thunk it? Finally looks like hash rate is picking up as older miners go back online and newer gear is throttled up to full speed along with newest gear finally starting to come online. One very interesting development is the US gov looking into restrictions on private wallets. Well not restrictions per se, more like tagging tx's to/from them for further scrutiny. Couple that with at least 1 huge mining group throwing their hash behind censored transactions and miners in the USA will be more monitored than ever. Methinks 2021 is going to be very interesting  Now in true Blockchain fashion, time to see if this gets 'validated' or orphaned.. For completeness: here is Phil's 2020 threadand his 2019 threadEdit: local rules - no trolling, no cloud mining ads, no unicorn 500TH mining gears buy links, no off-topic (non-BTC) clickbait, etc. Such posts WILL be deleted by me! While I'm allowing a wide range of discussion here it must at least be related to things that affect Bitcoin mining difficulty such as new hardware, current events, phase of the moon, etc. While *some* discussion of alts in relation to their effect on BTC diff will be allowed, crap coin discussion must be kept to a minimum. Continued hammering on alts vs BTC is right-out.
Unaccompanied children found here will be given a large 'duba' of espresso, candy and a puppy before being returned to their parents. |
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