my guess the Q1 hardware is starting to get "burnt in"  By "Burn in" you mean started mining with all the pre-order hardware. Shipping should start once ROI is unobtainable. Well, that is how this business is. The only way to avoid that, if is nobody paid for preorder, then would the manufactures have more focus on time-to-market. |
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Yes I realised that's what you meant the first time. But there is VAST, HUGE amounts of money to be made from having the power Ghash.io currently has to crush the price, even if they only have the power to utilize it ONCE.
Do central banks like Bitcoin? How much would they be willing to pay to crush it's reputation and price just before the bank bail-ins are announced and set it back 1 year +? How exactly do you propose that would play out? Well I can think of a few scenarios, but here's one - _______________________________________________________________________________ ________ Scenario 1:British Intelligence already owns Ghash.ioGhash.io was reportedly sold to unknown British based interests a while back, since then it has expanded aggressively. The British Intelligence Services are among the best and arguably most secretive in the world. Their cyber-warfare department is also one of the most 'offensive-capable' in the world. Besides serving the interests of their central bank, London is also the no.1 financial centre in the world. To assume that they don't understand the potential risk crypto-currencies pose and to assume that they wouldn't seek to mitigate and control those risks is naive. That IS their job. For the short and medium term at least, Bitcoin isn't excactly the Enigma machine either. Even 4 years in, Ghash.io has made it look laughably easy to gain control of a double-spend 'doomsday switch' which can be used to decimate the price and trust in Bitcoin at a critical moment. This power they may now wield over Bitcoin is priceless. Best of all it can be blamed on hackers/rogue employee/greedy pool owners, whichever serves their purpose best. Counter: But 55% of their hashing power is external, as soon as any double spending occurs, those external hashers will rapidly switch over to other pools. Response: Those are the numbers THEY gave you. I would also suggest that if you can see 45%, what don't you see? ___________________________________________________________________________ That's just one of many scenarios. Believe it or not as negative as I've tried to make it, I'm actually British and proud to be and I'm also not selling my BTC. But I think even if it suppresses the price in the short term it's worth keeping this problem front and centre and working to address it now, (by strengthening p2pool etc.) I luv conspiracy theories  This is one of the better I have seen; unlikely but definite plausible (don't get me wrong, I think your post are great, and very relevant to the topic). |
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What I think is there should be no ASICs too.
Well, there is an alternative: LTC. |
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This may be a dumb question since I am not a miner but who is required to execute a 51% attack in a pool? Does it require all participants of the pool to reverse transactions, ect. or can anyone or a small group within the pool or only the pool operators execute the attack?
The miners do not "know" what they are mining. The pool just send them jobs and the miners return the result (shares) and get pay (there are many different payment schemes), but most easy to understand is Pay-per-share, you get a fix amount of santoshi for each submitted share. The pool owner can use the hashing power they are in control of to any anything they like and most miners wouldn't even notice that they are not mining the honest block chain as long as they are being pay for the jobs. btw. it do not require 51% of the hashing power to execute a "51% attack" - its a matter of statistic. e.g. 40% hashing power can also perform double spend, the success rate are just less. GHash.IO has definitely the hashing power needed to perform double spend attacks, the would loos mining time, but as long as you "cheat" yourself to more BTC than you have to pay the miners, then can it be a profitable business. A scheme for a double attack is to send a bet to Santoshi Dice, if the bet win, fine, take the money, if the bet loose, use the hashing power to confirm the transaction to have gone elsewhere. |
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There is a little switch next to the connector on top of the card.
Where can I find a bios to flash which is unlocked?
Can I flash a MSI bios to my Club 3D card?
1. Take a backup of your bios by using ATIFlash 2. Modify the bios with VBE7 3. Flip the bios switch, if you mess up then can you always come back to the default bios by flipping the switch back. 4. Flash the modified bios. Here is a good guide (I have used it my self): http://rumorscity.com/2013/12/09/how-to-modify-video-bios-to-undervolt-gpu-in-linux/#comment-1187826533I don't know enough about the topic to say if you can use MSI bios on other cards, but change the original bios with VBE7 and using the bios switch seams relative safe. |
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This Ghash thing is scary as hell.
I see them as enemy's of BTC. They have to raise fee's to get rid of the newbie miners.
Yes, they make a little money with mining, but this is peanuts compared to the money they can make to short BTC and use scare tactics. Or some government/banks can offer them a few billion to destroy BTC.
Right now I put my faith in big BTC holders to set up miningpower to compete with those motherfuckers and keep their stash safe.
+1 I totally agree. I remember when I used BTC guild with my FPGA farm in april-may 2013, when BTC Guild got "too big", they reacted with increasing the fee, that caused miners to move to other pool, and they reduced they hashrate, very responsible of them. Personally I have moved some of my funds into altcoin, because of the "Ghash.IO risk", I might be paranoid but I find LTC more safe than BTC right now. |
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You are making something that isn't that big of deal into a big deal. Now you think that they had the power to crash the markets? Half the users of bitcoins don't even know what mining is, so I don't think they would crash markets. Stop with this FUD.
I understand your point, but i wouldn't make this noise if i didn't watch btce trollbox and marketmovement very closely today. Yes, if they decrease now in power i will shut up. If they further expand this talk will not stop, but intensify and also take prices down. Of course. Don't speculate on the ignorance of others. Only small fries get burned here. Large holders are in most cases familiar with the inner workings of btc and they will dump on you when they see btc-network is centralized. Maybe majority of holders is ignorant, but the largest stashes are not ignorant at all. They wouldn't be the largest stashes otherwise. When the top 10% holders dump this party is over. No matter what the average Joe knows or cares about. 51% attack doesn't mean bitcoin is centralized, it has nothing to do with that. Remember a 51% if in the wrong hands can allow people to do a double spend attack, that doesn't mean they will do it. Also most of the larger holders are not freaking out at all. Ghash has already made good about their policy to stop taking more miners and keeping the hash rate below the 51%. Also remember deepbit had this issue, and BTCGuild had this problem and a couple others, this is how the network spreads FUD. Plus BTC-E isn't a real exchange holds no real volume. 51% in the wrong hands can render btc unusable. The risk alone is enough to depress prices long before those 51% are reached in my views. I want to see prices go up. I made this thread because i recognized a stronger than usual dip with all that talk about ghash.io. So for me there is no doubt this issue has already affected price of btc. People were about to panic when the overstock-news just prevented a crash. Well, just my subjective impressions of course. We don't have to reach consensus on this matter. I just wanted to voice my concerns and petition ghash.io to take this matter more seriously and take a step back to secure their own source of income for the long time. They should admit to themselves they expanded much faster than the network in general and are now reaching an unhealthy level of expansion that is actually a real threat to this whole btc-experiment. They can not ask people to just trust them. That is not how it works. You can still perform double spend attack with less than 51% control of the network. With e.g. 45% is there a good change to be successful with a double spend. However with 51% will you statistically be sure to be successful over time. |
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Do you guys know already what pool you will be using? It would be lovely if we could use one other than Ghash.IO The percentage of hashingpower they are controlling lately is really disturbing, and i don't think we should contribute even more to an already borderline unhealthy situation.  Any plans already? If this is true, then is Ghash.io on the wrong side of that "border": https://bitcointalk.org/index.php?topic=327767.0Santoshi warned exactly about entities like GHash.IO. I don't know if GHash.IO are honest and I have nothing against them personally, but for the future of the coin, I support everything that is a counter weight to them. At least when BTC guild was dominating in april-may 2013, they did something to reduce they relative hash rate, to protect the trust in bitcoin. they have a big shake up coming in feb did you read the new tos? https://www.cex.io/tos I believe a lot of people will be in for a surprise come feb 4th. Wow! What a bomb. That will most likely slow their advance down. Good to hear, I am real concerned about GHash.IO, personally I have started saving my LTC instead of exchanging them to BTC because of the "GHash.IO risk". |
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I raised the temp-target from 75 to 80. My 2 cards are now around 78C and the Hashrate increased to 715 and 685 I Also learned that The Club 3D Radeon R9 280X royalQueen cards are voltage locked, too bad. My system now uses 650 Watt Does the Club 3D cards come with a bios switch? If yes, then is it both safe and relatively easy to flash a new bios where you have changed the voltage to the level you want. Did it my self with MSI version last week. My MSI R9 280X card are hashing rock stable with 1137 mV and hashing constant at 714 kH/s. The undervolting reduced them from 300W to 270W. |
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Do you guys know already what pool you will be using? It would be lovely if we could use one other than Ghash.IO The percentage of hashingpower they are controlling lately is really disturbing, and i don't think we should contribute even more to an already borderline unhealthy situation. Any plans already? If this is true, then is Ghash.io on the wrong side of that "border": https://bitcointalk.org/index.php?topic=327767.0Santoshi warned exactly about entities like GHash.IO. I don't know if GHash.IO are honest and I have nothing against them personally, but for the future of the coin, I support everything that is a counter weight to them. At least when BTC guild was dominating in april-may 2013, they did something to reduce they relative hash rate, to protect the trust in bitcoin. |
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An update: Thomas is on travel. He's headed to facility #2, in fact, as we talked about in one of the rounds (I forget which one, there's a lot of Rounds  ). The payment processor is still down. We're actually switching some things over to a different payment processor and cart software. So: sorry, orders will be down for a little while longer. There's *still* major site redesign work to be undertaken shortly as well. BTW and FWIW: the odds are good that one or more X-3s will still be bought by the DZ MC before shipping. == Fun fact I found out last night: On BTCGuild at least: Team DZ has more active hashrate than Poland and the Russian Federation.  https://www.btcguild.com/index.php?page=rankings§ion=teamsI wasn't even aware of this until recently. Most of our ordered hashrate hasn't even arrived yet if you subtract the running total in my sig from what you see here. 20 TH/s That is a lot of hashing power - great job Team DZ! |
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Do you have any experience with the coolermaster V1000? I am looking for a high-efficiency, low ambient noise PSU. Best choice I found so far is Corsair AX860i. |
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billede af skolen på frederiksberg eller CBS, var sådan set kun for at bruge et meget kendt sted på frederiksberg, og er heller ikke det billede der endeligt skal være på den side, og det er heller ikke afgjordt om det overhoved skal være et billede. men kan godt lide at du hænger dig i at vi har brugt 1 billede på selve hjemmesiden ( ikke blog medregnet) hvor vi ikke selv har designet det helt fra bunden. men fair nok, det er taget til eftertanke. Har ikke brugt denne her profil ret meget, men kan sikre dig at jeg nok er en af dem i Danmark og måske også Europa som har kendt og beskæftiget mig med BTC i længst tid. jeg startede med at investere tid og penge i BTC omkring slut 2010 start 2011 og hørte første gang om det gennem en udenlandsk kunde i slut 2009. Havde en anden profil herinde som blev hakket eller rettere, koden blev lagt offentlig pga. sikkerhedsbrud på MTGox, og så valgte jeg at slette profilen, den havde nok skrevet 500 indlæg herinde og havde et flot titel og alt det der.. oprette en ny, som jeg så ikke rigtig brugte mere, da jeg syntes det var det samme der blev skrevet og spurgt om herinde, og hver gang man ville skrive lidt om et projekt om BTC man var i gang med, blev det betragtet som Spam, reklame for egen røv og ja janteloven fik rigtig lov til at leve herinde og så stoppede jeg med at bruge det her forum. Jeg ved ikke om vi er optimistiske hvad angår udbytte det er jo her og nu, og det skriver vi også, kan dog godt følge dig at det måske slet ikke skal stå der og folk så selv må regne på det.. var mere tænkt som en hjælp Du glemmer jo at aftalerne allerede er i gang, vi har bare solgt ud, pga. stor efterspørgsel, så ja dem der betaler nu og først kommer i gang start marts, da vil udbyttet se en del anderledes ud. Igen det er jo lidt som at investere i aktier, du kan vinde du kan tabe… og vi regner med at BTC stiger og så vil folk også tjene gode penge på de her aftaler, da de slipper for bla. strøm. ved du f eks., havd en 500 GH/s æder i strøm pr. måned, det er ikke småting og så kommer alt det andet som man også slipper for, samt de fordele der følger med. Så syntes egentlig vi har taget højde for det meste og sat pris og så der er udbytte for alle parter. VI kan desværre ikke sige hvad sværhedsgraden vil være om 2 mdr. bare vi kunne. vi har regnet med at sværhedsgraden er ca. 2,5 - 3,5 milliarder til martz, det skal jeg ikke kunne sige om er meget eller lidt, det er regnet ud fra stigningen de sidste 12 mdr. + lidt ekstra pga. de ny teknologi og markedsundersøgelser omkring hvad de forskellige producenter forventer at smide ud på netværket den kommende tid. Vh - Jimmie Jeg er helt enig en "flot title" fortæller ikke ret meget (dem kan man jo principetet købe sig til). Jeg er også enig med at bitcoin mining er kun for prof. nu, jeg afviklede alt mit private bitcoin udstyr i Juni (det var en god beslutning). Siden har jeg kun fokuseret på GB, de projekter jeg er indvolveret i, der går ca. 5% af indtjening bare til at dække strøm og husleje, så det er bestemt ikke gratis i strøm. Mit mest optimitiske estimat er at særhedsgraden vil være omkring 3,5 milliarder primo marts, men jeg har budgeteret med 4,5 mil for mine marts. Hvis det bliver 2.5 mil, så bliver jeg rigtig-rigigt glad, så jeg håber at dit estimat er mere præcist end mit. Jeg vil med stor interesse følge med i dit projekt, jeg er især interesseret i at høre om hvilken teknologi i skal bruge. Og endnu engang tak for at give dig tid til at svare, jeg har i hvertfald fået et meget bedre indblik i dit projekt, ingen jantelov herfra, blot skeptisk pga. de overstående punkter, som du nu har svaret på. |
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Sikker investering er måske forkert formuleret, det vi mener med det er at du kan være sikker på at du får det du betaler for, dvs. at hvis du bestiller en f. eks. 200 GH/s leasing aftale, så får du en 200 GH/s leasing aftale +/- 15% ( det er ca udsving på udstyret og det vil vi prøve så godt vi kan at udligne så du kommer så tæt på dit max GH/s som muligt. ( det fremgår på den kontrakt man modtager ved bestilling) Vi er godt klar over at der tidligere og sikkert også i fremtiden vil være firmaer som prøver at snyde deres kunder for at få fingrene i BTC´s og vi kan jo sagtens sige at det har vi ikke tænkt os. men hvad er din sikkerhed…. Da det er et dansk selskab og det ikke er lovligt at snyde folk eller stjæle fra dem. På den anden side er det ok at man er skæptisk. Men som med alle andre forretninger man handler med, må man jo stole på at de driver en seriøs forretning og bare fordi denne forretning drejer sig om emnet BTC er jo ikke end betydning med at man så på forhånd har tænkt sig at snyde. Derudover forventer vi inden længe at få de første investorer ind og de er sikkert heller ikke interesseret i at man snyder kunderne Det er rigtigt at vi ikke kan garantere hvad sværhedsgraden er og vi kan heller ikke garantere hvad en bitcoin er værd i kursen, det eneste vi kan garantere er at handler du med os, så får du hvad du betaler for. dvs. vælger du en af de 4 løsninger vi har på siden eller en anden skræddersyet løsning, så garanterer vi at du kommer til at mine med XX GH/s i de 3 måneder aftalen løber. Det er den garanti du får og den sikkerhed vi tilbyder. Skulle det vise sig at udstyret bliver forsinket, ( en del af udstyret har vi modtaget og aftalerne er solgt for januar og februar,) men skulle det gå hen at ske at vi ikke får de maskiner som skal bruges til de næste aftaler, så får brugeren en kompensation i form at mere GH/s og vi udvider aftalen, derudover så har vi TH/s nok til at opgradere alle vores leasingaftaler, så ingen kunder skal vente på en my maskine eller andet inde vi kan opgradere. Hvis udstyret bryder sammen, ( skulle være pudsigt hvis alt skulle gå ned ) men lad os sige det, så vil alle aftaler forlænges med den tid systemet har været nede. ( det opgør vi en gang pr. måned.) Der kan jo ske mange ting som vi ikke kan være herre over, det kan det jo også hvis du selv køber en maskine til 70.000 kr. eller mere og strømmen så går i hele gaden eller internettet går ned, Det kan jo også ske for os uden at vi kan have skyld i det, og da vil vi på bedste vis prøve at kompensere. alt dette vil også komme til at fremgå under FAQ som er ved at blive udarbejdet lige nu. Der er ingen af kontrakterne der vil garantere x antal BTC i en given periode, den viser bare havd du kan forvente at lave med den GH/s hastighed og den nuværende sværhedsgrad. ( det kan godt være det skal fjernes, da det forvirrer mere end det gavner). Dvs. den bliver løbende justeret alt efter hvad sværhedsgraden er. og er et ca. estimat, da der ikke her tages højde for at sværhedsgraden på 3 måneder vil sige flere gange. det den gør er at tage GH/s / nuværende sværhedsgrad = antal BTC pr. måned x 3 = XX BTC. Som sagt, så mangler vi stadig lige det sidste tekst på siden, og det regner vi med at have på inden næste uge. Så skulle der ikke være noget du ikke kan læse dig til på siden, men igen, vi retter hele tiden til ud fra henvendelser fra kunder og interesserede, så vi hele tiden optimerer siden med info m.m. Håber jeg fik det hele med.. Ahh glemte lige en ting. hvis udstyret ikke skulle performe eller levere det som vi forventer, så har vi en buffer på 1/4 af hver maskine som skal bruges til opgraderinger, test, bonus, GH/s m.m. så vi burde ikke komme ud fro at kunderne ikke får det de betaler for, og vi investerer løbende i nyt udstyr. Vh - Hej Jimmie Efter du har uddybet, så lyder din forretning mere legit. (Jeg er dog noget uenig i det forventet udbytte, det er meget optimistisk sat fra jeres side). Jeg er glad for at du som dansk iværksætter har givet dig tid til at forklare, jeg støtter selvfølgelig den danske bitcoin brance, men når et Jr. Member begynder at poste en masse reklame for en et invisterings projekt med løfte om en sikker bitcoin invistering, uden at have nogen historie og uden at have blivet ID valideret af nogen, så ringer alle mine alarm klokker. Det virker heller ikke særligt troværdigt at i bruger fancy billede fra Copenhagen Business School når i beskriver "om os": http://cryptomine.dk/om-os/Copenhagen Business School: http://www.cbs.dk/files/cbs.dk/styles/cbs_frontpage_slider/public/frontpage_slider/frontpageslider_0.jpg?itok=drGwPhM_Mvh, |
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I have been studying this topic last week, since I am planning a similar build. There is two things that need to be secured: - The secondary PSU as to be switch on, example by the ON signal from the MOBO. - There must be a solid ground connection between the two PSU's. The "adapter" you have linked to solved the first problem. The "adapter", simply switch on the secondary PSU by enabling the ON signal with a relay, the relay is switched by the primary PSU (5V or 12V). But you can do this "for free" by simply take on signal from primary PSU and connect it to secundary PS, here are the shared connections: http://www.corsair.com/en/blog/testing-your-corsair-power-supply/(the example shows how to run a PSU, without MOBO, this is just to show the two signals that is needed to power on the PSU, the signal could as well come from the MOBO where the primary PSU is connected). Here is is a guy who is selling that solution: http://litecoinminingparts.com/shop/cables/dual-psu-power-supply-adaptor-cable/(you can build it yourself, if you want to save $20) From an electrical perspective it is important to have a solid ground between the two PSU's. An ATX PSU has actually ground on chassis, so if mounted in same cabinet is a very solid ground established. You can also just connect a solid ground wire between the two chassis (e.g. a 2.5 mm2 wire). The system will properly work without the "extra" ground connection, but then will the ground be established through the MOBO, which is a relatively long path, which potential could give you a stability problem. |
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Hej.
Nu var det jo ikke for at spame forum til med "reklame"
Vi har investeret i noget SHA 256 mining udstyr. det er ikke tale om black arrow, KnC. Leverandøren ønsker vi på nuværende tidspunkt ikke at uddybe yderligere, da vi også ligger i forhandlingerne med dem om om at blive distributør i Danmark og Skandinavien.
Udstyret som vi arbejder med og tilbyder er som vi skriver den nyeste teknologi indenfor SHA 256 mining udstyr.
Vi forventer naturligvis sværhedsgraden stiger som den gør løbende og vi er også klar over at den vil komme til at stige en del inden at aftalen starter, deraf den "lave" pris på de nuværende aftaler der er til salg og som er solgt.
Havde du kunne komme i gang i dag, havde aftalerne været en del dyrere, så der er taget højde for at du først kommer igang i 1 kvartal 2014.
Desværre er der ingen som kan give en sikker udregning af hvordan sværhedsgraden vil være ved start og i fremtiden.
Derudover så forventer vi også som alle andre at BTC kursen vil stige i takt med at det bliver svære og svære at mine/høste dem.
Du slipper for at invetere i udtsyr.
Du slipper for at tænke på strømregningen
Du slipper for at sætte dig ind i pool´s, GH/s, workers, opsætning. m.m.
Udstyret har 24/7 support og overvågning
Du kan løbende opgradere din aftale
Du skal ikke tænke på slid på udstyr og udgifter til nyt.
Du slipper for larm / varmeafledning samt rengøringsudgifter.
Ønsker man at komme i gang i dag, har vi også mulighed for at tilbyde mindre leasing aftaler, men dem har vi ikke lagt til leasing endnu, da vi har testet systemet med dem. Pga den store efterspørgsel har vi valgt at sætte dem til leasing fra næste uge. Ønsker man at vide mere omkring disse aftaler, skal man kontakte os, da de ikke vil være på hjemmesiden.
beklager at det andet var en kort henvendelse til vores side, men meningen er jo at folk kan læse om det derinde.
PS: siden er stadig under udvikling, da vi løbende lave små ændringer for at optimere og forbedre brugeroplevelsen.
mvh - Jimmie
Cryptomine.dk
Hej Jimme Tak for dit svar, kan har et par spørgsmål, som jeg håber du vil give dig tid at besvare: Kan du ikke prøve at knytte en kommentar til det du skriver på hjemmesiden: "Sikker investering Vores lave priser og nye udstyr gør at vi kan sikre dig et højt afkast på din investering." En sikker invistering må være at der meget lav risiko at tabe penge i forbindelsen med invisteringen, ikke sandt? Men der er stor usikkerhed forbundet med både sværhedsgraden og bitcoin kursen. Der er også stor risiko forbundet med at give penge ud til folk som man realt ikke kender, bitcoin brancen er kendt for utallige svindelnumre og scams. Hvor er det "sikre" i aftalen med alle de højrisiko elementer? Jeg er meget i tvivl om hvordan "kontrakterne" er udformet ud fra det man kan læse på hjemmesiden. Vil kontrakten garantere 1.60 BTC i udbytte med en "hakke" aftale til 2995 DKK? Hvordan vil i reagere på at leveringen af jeres udstyr bliver forsinket? Hvad sker der hvis udstyret bryder sammen/ ikke levere forventet performance? Mvh, |
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Hi, Beware of the cable on Amazon as they have the thin VGA type wires that may get too hot over time. We stock higher quality cables with a triple thickness of wire to prevent this heat and potential fire issue. Please view the images below to see the thicker and high quality of cable.   We have many of these cables plus more at our online shop. www.litecoinminingparts.comIf you have any questions, please do not hesitate to contact me. Kind regards, Tom Thanks for the link Tom. How much is shipping to DK and approximate delivery time? |
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Thats great, I will try it out.
Thanks for the advice ineedit.
best regards,
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That's the one you will need. It is done by the magic of electrickery Lolz How about the bandwidth, the rates of the job to the GPU is super low, right? (I remember that when I build my FPGA miners for bitcoin coin last year, RS232 was fast enough). I can see on the mobo schematic that the 16X is directly connected to the CPU, but the 1x slots is connected to port extension, so I am pretty sure you can not go higher than Gen2 on the PCIe 1x slot (properly only Gen1). |
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