they should arrive nov 1. You read it here first So much for "The summer of 2015 for new ASIC miners". Do you think Bitmain will have sold all of it's existing S5 "well tested and mining for months" stock? What will they sell if the completely sell out of their "used, sold as new" S5 hardware? |
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Putting aside the various types of thermal paste and such, how do I determine the physical location of a specific ASIC based on it's number and Loop number? I have one ASIC (i.e. ASIC #7) that runs hotter than all the others. I am pretty sure that 0-3 are one board, and 4-7 are on the other. I am almost certain that ASIC #7 is the "last before the" hot air exits the SP20. I have though that when I ramp back up after the summer months here in the USA, I might consider doing a "paste job", but would like to do it on the correct one.
Ant specific guidance or diagrams on this?
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Assuming you are interested in earning more money than you spend, your FIRST and most important question to answer is:
What is the cost of electricity where you will run the miner?
If the answer is less than 10 cents (i.e. .10 USD) per KWh, then it makes sense to worry about all the details above. If your cost is over about 15 cents, then you will spend more on electricity than you earn in BTC. Only you can answer the questions regarding your electricity price, and how important it is to make, or not lose, money by running a Bitcoin miner.
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someone couldn’t keep it in it's pants so we could have got negative diff   I tried calling my buddies at KNC, and asked them to turn off their gear for a few days so that I could win with my small negative guess. They just laughed at me......  On a more serious note, I think this is more than just "variance". The last two increases together suggest that we have a real and sustained increase in hashrate. Absent some kind of disaster, or collapse in BTC price, we won't see a difficulty below 50 Billion again (IMHO). |
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I'll bite on this one: Use https://bitcoinwisdom.com/bitcoin/difficulty to see the current difficulty, as well as the current expected rate of bitcoin mining. The table on the upper right has value for BTC/dat and so forth. The table is in Gigahash/sec. The 5.5 TH (i.e. Terahash) is 5500 Gigahash. You should be able to do the math from there. The figures in that table also assume you run the miner 24 hours/day. The wattage figure you quoted is important to determine the electricity consumed in producing those Bitcoins. You will have to find out your cost for electricity in your area (i.e. where the miner will run) in order to calculate the costs of running the SP35. Then look at the current exchange rate for BTC and see if you are making or losing money. Don't be surprised if you make very little, or lose money. |
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And just as a small reminder in case it isn't obvious, the difficulty ratcheted up another 2.35%. So whatever you were calculating for income, just dropped a little bit. As was mentioned, you are seeking a device that doesn't exist at the price point you mentioned. That's because anybody that has such a device can almost certainly make more money by using it, rather than selling it for $200.
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I am betting that there is a slipped decimal point for the electricity cost. I have yet to hear of anybody that claims to have a rate of $1.40 / KWh. Of course if your electric rate was actually that high, you might not want to use your computer to access this forum!!! |
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By L1, do you mean the product that Bitmain declined to actually produce? I wouldn't expect them to Sartre their engineering for that project anytime soon. That's even more unlikely than the folks waiting for S2 upgrade, that hasn't arrived.
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I remember that hashnest stated that if their hardware is not profitable anymore and they take away our contracts we will be able to redeem our hardware,BUT is it posible to choose to redeem the hardware while the hardware is still profitable?And how will I do this?
No, in the ToS, they will not sell the hardware until it is no longer profitable. So it sounds like you could buy the hardware if BTC price declined enough. How long does it need to be unprofitable? |
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Actually, I think the engineer's response is:
"The glass is twice as big as it needs to be!"
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Glad to hear things are proceeding along. Is the unit count on the 1st page of the thread up to date?
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I wonder if the folks at Bitfury have to wear sunglasses when visiting the farm, considering all the "Mining Bulbs" they must have by now...... This is a totally flippant comment considering the title of this thread. Nobody in their right mind will attempt to accumulate any serious hash rate using anything other than a purpose built ASIC miner. Just my jab at the "Everything that uses electricity should be miner" crowd. |
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Still looks like an increase coming.......
Bitcoin Difficulty: 51,076,366,303
Estimated Next Difficulty: 51,789,871,699 (+1.40%)
Adjust time: After 349 Blocks, About 2.4 days
Hashrate(?): 374,170,093 GH/s
Block Generation Time(?):
1 block: 9.8 minutes
3 blocks: 29.4 minutes
6 blocks: 58.7 minutes
Updated: 2:10 (4.6 minutes ago)
BTC Price: $273
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Hmm the design seems to be upgradable, this could be very neat it they sell the blades by themselves (at a reasonable cost ever) for future upgrading. I wouldn't read too much into the design in terms of future upgrades. The form factor of the total device, as well as manufacturing concerns, may well have dictated that there be more than one "hashing board". Power and cooling could easily render future upgrades impossible, unless they really work at it. While we saw a great deal of similarity between the S1/S3/S5 miners from Bitmain, for the most part they weren't really designed for upgrades. Yes, I know about the S1 upgrade path, but zero for the S3 --> S5. Of course, you may be able to re-use the power supply if that counts as "upgrading".... |
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Another option to consider is to leave the S5 set to DHCP. Most routers have a builtin DHCP server. You will also likely find a setting in the router that will cause it to hand out a specific IP address based on the MAC address of the S5. While not strictly a static IP address, it still shows up where you expect, and you don't have to worry abound tinkering with the S5 config, and getting it messed up.
This may not work for all routers, but it's quite common, and a handy trick to use.
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Bottom Line Up Front: is this modification a "one-way street"?
I'm more a software guy, but I'll take a stab at this.
Postulation: The graphite from the pencil enhances the electrical conductivity of the resistor, effectively lowering its resistance. The result: voltage supplied by the S3 hashing board to the BM1382s is effectively reduced.
If the above is correct, I pose the following:
1. Can the S3/3+ chips run at their default frequency/clockrate once this modification is applied?
Experience with CPU over/under clocking+volting leads me to believe that if the voltage supplied is less than sufficient for the desired frequency, the chip will either fail to initialize or initialize and misbehave. See #2 particularly if false;
2. Can the graphite be safely removed?
(Methodology requested if true).
Thanks,
moose
The simplest answer to #2 is to use the other end of the pencil (i.e. the eraser). You could also consider an alcohol soaked swab. The graphite isn't permanent by any means. You are just trying to clean it off, it isn't embedded nearly like it is on paper. |
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It sounds like a losing proposition for the buyer, unless you get really lucky during your 7-day period. Wouldn't you expect to mine about .075 to .085 BTC during a week? Not a horrible deal for the buyer, but nothing great.
What are your electric rates? This should easily cover your running costs for 7 days I would think.
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Yeah, I guess anyone wanting to drive to Missouri for pickup should pay the $25 per stick but not the shipping. And let me know in the message that you'll be picking up.
You never know, I hear that Cuba Missouri is a real hotbed of BTC mining..... |
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Clearly if such miner (i.e. 1000W, 5TH) did exist, and was for sale, then the closer to $2000 it was the more compelling it would be. Is that enough speculation in the Hardware sub-forum? |
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It would seem for anybody that is trying to purchase 5 S5 miners (i.e. $2000+, 3000 Watts, 5.5TH), a 1000W 5TH, $3000 miner would be a reasonable alternative. Maybe not completely compelling because of the cost, but certainly something to consider. It clearly isn't an alternative, because it won't ship for quite a while.
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