Bitcoin Forum
July 08, 2024, 09:36:03 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 ... 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 [96] 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 ... 315 »
1901  Bitcoin / Bitcoin Discussion / Re: Why do mixing companies want stolen bitcoins? on: October 15, 2020, 08:40:07 PM
Quote
And there can be a huge problem with false positives, since every coin has some percentage of taint to it
Not mine. Every Satoshi I have were earned via mining and are/were New coins.

Now for folks that buy coins, ja some coins or some part of them may be tainted.
1902  Bitcoin / Development & Technical Discussion / Re: Coinbase sponsors two Bitcoin developers! on: October 15, 2020, 08:20:16 PM
Quote
Btw Adam Back liked this news and asking about it:
https://twitter.com/adam3us/status/1316808871801954306
With him being one of the major backers behind behind HalognMining (the DragonMint miners) and the ASICBoost "Defensive Patent Protection" scheme I hope to God he is NOT one of the devs that gets sponsored. He sure as hell does not need the money and has a general disdain for anything that is good or ethical for the BTC Community!
1903  Bitcoin / Hardware / Re: Small miner viability question: USB-C bus power? on: October 14, 2020, 06:27:49 PM
Ja. What's scary is that per the paper, "Because of this (wide availability of micro usb cables), the European Union has discussed the potential of adopting the USB Type-C connector as the standard for (delivering power to) all future devices bought and sold in its region."

Great. So not only will you still need a wall wart or dedicated PD port but it will also mean that because they are physically the same, usb-c devices will have to be smart enough to know if PD or data target is plugged into the 2 or more usb-c ports (1 PD, 1 data) on the device and be sure that the data cable is a data cable vs a power only cable. Issues with the earlier Avalons caused by folks using a usb charger cable vs full up power & data cable comes to mind...
1904  Bitcoin / Pools / Re: [∞ YH] solo.ckpool.org 2% fee solo mining 256 blocks solved! on: October 14, 2020, 05:09:38 PM


Use the "Insert Image" function isntead of posting the url.

You settings look right to me, I can't tell if you have any leading/trailing spaces, so the best way to know for sure is by looking at the status page, if the pool shows "Alive" then your settings are correct.

As kids would say these days, BIG OOOOF incoming.
Custom firmware and Ck have a rocky relationship.

Crazy Mining is a rebranded Vnish, Cksolo pool works just fine with Vnish (Asic.to and AwoesomeMiner) so I would assume this would work as well, and might as well hit a block or two.  Tongue
Um, didn't -ck kill off the Germany node? He's not only pointed there but at the now defunct 'normal' pool ta boot. Not the solo...
1905  Bitcoin / Hardware / Re: Small miner viability question: USB-C bus power? on: October 14, 2020, 02:50:57 PM
Well now... This paper from DigiKey blows that idea out of the water. While it does not expressly say that PD and data xfr is not possible the paper again pushes the idea that USB-C PD ports are primarily going to be used only for power.

So, I take it that means that we will still need 2 cables to our power hungry devices - 1 USB-C PD for power, one USB-C for data. Pretty stupid if you ask me.
1906  Bitcoin / Mining speculation / Re: Should I invest right now ? (new user) 10000€ + 2500€ each month. on: October 14, 2020, 02:10:13 PM
Well for one read this about mining in general from point-3 on down.
For hardware information there is this list of current competitive hardware

To get any sort of income you really must join a pool as solo mining is truly is a lottery with very VERY low chance of 'winning'.
That said, a few key points:
   You MUST have very low cost electricity to stand ANY chance of not losing money. Most current miners draw anywhere from 2kw up to around 3.5 kw.
   Miners are HOT and LOUD! All power they consume is directly converted into heat. Think high power space heaters as loud as industrial shop vacuums and you are close... That heat and noise cannot be suppressed.

A good explanation of mining can be found here and the other ares of that help file.
1907  Bitcoin / Hardware / Re: My new 300KW minipod... on: October 13, 2020, 07:04:59 PM
Quote
however there are two really large transformers inside the warehouse that may help the 480 turn into three phase 208/220
There is no 'may' about it: those *are* the 480/220v step down xmfrs.  Smiley
1908  Bitcoin / Hardware / Re: My new 300KW minipod... on: October 13, 2020, 05:20:00 PM
It's fairly common in the USA to have 480 phase to phase, and 277 from one phase to a neutral. There's usually a stepdown transformer to provide some 120/208 but then again, many things CAN run off 277/480. In commercial buildings that is.
Incorrect.
In the US, 480V service is the start of what is usually called "heavy power" and usually only available to industrial areas and large commercial developments such as malls and office buildings. In large buildings it runs HVAC and is also distributed throughout the building to feed local 120/208V transformers that feed power to different areas of a building.

The only common use for the direct 277V phase-to-neutral is for overhead lighting fixtures designed to accept the high line. The 3-phase of course supplies large 3-phase loads. For all virtually all other '200V' devices, they usually top out at a maximum input of 240V and WILL quickly fail when fed anything over 250V.
1909  Economy / Scam Accusations / Re: Bitcoin SCAM on youtube right NOW! on: October 12, 2020, 07:36:42 PM
If people are foolish enough to believe everything they see on Social Media sites and refuse to do ANY facts checking, then they are idiots. Anyone can post nearly anything on SM sites. Why on earth do so many folks blindly believe what they find there?
1910  Alternate cryptocurrencies / Mining (Altcoins) / Re: Where can I get 200 gpus on: October 12, 2020, 07:25:07 PM
Not here... Wrong area as this section is for Bitcoin only and GPU's are useless for mining BTC
Asked the mods to move yer post to the correct area
1911  Bitcoin / Bitcoin Discussion / Re: UK hospital launches rehab programme for bitcoin addiction on: October 12, 2020, 03:06:42 PM
Utter nonsense! I see this as an organized effort sponsored by an organized corporate entity to de-frame bitcoin. If this hospital want to genuinely help people, they should start rehabilitation program to come out of facebook addiction. This facebook addiction is actually harmful for the society which only fills up company's account without fetching any personal benefit.
Agreed!
The rampant addiction of folks feeling the need to constantly txt and use other social media platforms is a far bigger problem. Hell, each year many people are killed because the idiots walk into traffic while texting. The problem is bad enough that several cities have installed warning devices that flash in the sidewalks at intersections along with location-based apps that trip the phones to display crosswalk warnings.
1912  Economy / Service Discussion / Re: https://bitcoinvanitygen.com - not samr7 vanitygen on: October 12, 2020, 02:18:34 PM
^^ is correct, Google cannot shut it down, just at best they delist it from search results or tag it with a warning. Since for now the site is gone we have to assume the site host (OVH) acted on complaints and took it down.
1913  Economy / Service Discussion / Re: https://bitcoinvanitygen.com - not samr7 vanitygen on: October 07, 2020, 06:34:02 PM
Narf... I had used that site a couple years ago to make my Vanity Address, never really used the address but I do see that someone deposited $15 into it on Sept 23 and that the address along with many other folks addresses was swept clean yesterday as well https://www.blockchain.com/btc/address/1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
Crunching a new address OFFLINE for tips/donations as I type...

edit: done, took 4 hrs to generate new 7 char address offline
1914  Bitcoin / Mining software (miners) / Re: W_Firmware for Bitmain Antminer on: October 07, 2020, 05:07:55 PM
Kano is vocal about the GPL issue in almost all of the aftermarket firmware threads. Just check them and every few pages he brings it up again and again. The one exception is BoS from the folks at Slush and that is because BoS is a clean re-write of the software and is not using any cgminer code plus most of the BoS code is published as open source.

As for Bitmain and other mfgr's using cgminer without posting their code, only Canaan has lived up to the source code requirements so ja BM, MicroBt and others are also in violation but pretty hard to go after them about it...
1915  Bitcoin / Mining support / Re: T17/S17 malfunction: cases, solutions, remedies, RMA history on: October 07, 2020, 02:18:25 PM
I wonder what the actual rules are for what US customs calls made in China. If all they have to do is send hashboards separate from the main body to Malaysia and have them just plug them together to bypass the tariff, I'd think all of the other manufacturers would have jumped on that...

Not positive but am pretty sure it takes more than sending a plug-together kit of parts to get around the tariffs hence my guess about the boards being stuffed in Malaysia as well PSU's being made there as well. Someone needs to check the Customs category breakdown on them.
1916  Bitcoin / Mining support / Re: T17/S17 malfunction: cases, solutions, remedies, RMA history on: October 06, 2020, 05:29:30 PM
Quote
As far as I know, Bitmain doesn't make any mining gears in Malaysia, it's probably just a sorting hub to reduce import/tax costs for countries that aren't so friendly with goods coming in directly from China,
Incorrect. The Trump Tax tariff and ones from a few other countries forbid that by using Country of Origin as the deciding factor. That means where the miners are assembled so BM does have at least 1 assembly plant in Malaysia that does at least final assembly of them using parts made in China. Given the quality issues they may also stuff the hash boards there...
1917  Bitcoin / Mining speculation / Re: Mining underground? on: October 06, 2020, 05:21:16 PM
I recall back then an immersion cooling...it was revolution by Fluorinert by 3M https://www.3m.com/3M/en_US/data-center-us/applications/immersion-cooling/. Of course this solution is not for puny mortals but for mega-datacenters with special HW that is submerged in liquid.

Bitfury has been doing that for ages. It remains as the most effective way to cool the miners and eliminates the problem of miners being excellent dust collectors. Even in a data center with fairly clean filtered air coming in, because of the very high airflow through a miner the heatsinks/fans in them get very dirty very fast. Then there is the issue of hundreds/thousands of fans that WILL fail sooner or later.

With the 2-phase cooling from immersion in Flourinert, only the outside 'dry cooler' heat exchangers gets dirty and they pretty much don't care. Use magnetic-coupled sealless pumps to push the fluid around and you have a pretty much maintenance-free setup.
1918  Bitcoin / Hardware / Re: Small miner viability question: USB-C bus power? on: October 06, 2020, 01:10:28 PM
Looking at the usb-c PD dev boards out there I am not seeing combined power & data from anyone. What's surprising is that the datasheets only talk about usb-c PD replacing power via barrel connector with zero mention of data. What the heck is the advantage of that? Only thing I get is 1 less component because no power jack.  Aside from that you are just replacing one brick with a different kind of one. This from Cypress Semi and this from Infineon are typical of what I've come across so far.

you still need a way to insure proper volts to what ever device you plug into it.

That is negotiated by the usb-c PD chip and the device you plug into it. The pd chip defaults to 5v out and only after handshake does it raise voltage out to whatever the connected device wants.

What *is* interesting is that the standard I linked to earlier says that usb-c PD is a 2-way connection - whatever is plugged in can be both a power sink and if needed become a power source. Think a battery pack: It can be connected to a hub for charging along with a spinner portable HD for data. When the drive needs power to spin up if the hub cannot supply it the battery pack will. Good talk about that is here.

re: safety, all of the pd chips I've looked at so far have comprehensive short circuit protection for both fire and data safety.
1919  Bitcoin / Hardware / Re: Small miner viability question: USB-C bus power? on: October 05, 2020, 05:23:01 PM
Poking around amazon for "usb-c PD" brings up several chargers & power sources such as this from Anker but nothing that is also a data hub... That despite this USB-C PD standard mentioning use with HDD's & printers implying not just supplying power to them but also being used for data over the same cable. Go fig...

What is interesting that in 20v output mode USB-C from a wall wart is good for up to 100w which is how it powers the newer laptops and tablets. Lenovo has been doing that for a couple years on their tablets, even those using micro USB-B connectors. My Yoga tablet wall wart outputs 22V when powering the tablet but drops to a safe 5v up to 3A when connected to charge a 'normal' usb device like a phone.

Well, usually drops to 5v: I did once have a vape battery go Dragon mode on me when charging with it. Worked fine many times and then 1 day - FOOM! a 2 foot flame shot out of the battery for about 2 sec followed by release of all the Majik Smoke. My guess is that the charging dongle failed delivering full power to the battery. Just very glad it was sitting on a solid surface away from anything easily ignited...
1920  Bitcoin / Hardware / Re: Small miner viability question: USB-C bus power? on: October 02, 2020, 12:26:03 AM
My guess is that high power over USB-C is mostly an optional setup rather like PoE is for network devices - a special hub will be needed that can supply the higher voltage & power.

In a way I can understand the lack of mobo's with built-in PD bus - no liability for failures caused by non-compliant devices plugged into the USB-C port going 'poof' or worse. Keep it at 5v and even the dumbest charger/device should be happy...
Pages: « 1 ... 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 [96] 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 ... 315 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!