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701  Economy / Auctions / Re: Sellin 3x 0.5 BTC casascius coins 2013 on: May 31, 2015, 09:16:55 PM
I would like to take back my bid of .6 BTC until some pics are provided

My bid at 0.6 is entirely dependent on proof and/or escrow also. Seeing as its only one coin, ill up my bid to 0.65 conditional on pictures that show a coin in good condition.
702  Economy / Auctions / Re: Sellin 3x 0.5 BTC casascius coins 2013 on: May 31, 2015, 03:37:41 PM
3@0.6
703  Economy / Securities / Re: ASICMINER: Entering the Future of ASIC Mining by Inventing It on: May 30, 2015, 11:46:31 AM
So maybe FC ran away. But did the rest of the company including all the IP run away also?

If not, is there anything left to divvy up between shareholders in some kind of liquidation process?

From what I've read here on multiple threads there is no one in the building they used to work. Maybe the company still existing on paper, but... On the other hand - why go to work if there is nothing to work with. They got no next gen asics, no new cloudmining scam, no nothing. Just some lawsuits maybe Cheesy Some people were kindof ready to sue them, but don't know how this evolved after AMHashLC partial refunds..

my guess is that sometime in the next 2 years, a discreet, wealthy chinese mining farm will be found with hardware that looks a lot like what asicminer promised in gen3.
704  Economy / Collectibles / Re: CASASCIUS PHYSICAL BITCOIN - In Stock Now! (pic) on: May 30, 2015, 11:42:31 AM
Is there any site (not eBay, the prices are fire!) still selling Casascius coins, with escrow?

your best bet is to put up a wanted ad in the forums. I think that theres a lot of the coins have already been sold and distibuted that whoever still has coins to sell might be more cautiously HODLing.

consider the 1BTC Silver+Gold. It sold at a point for about ~1.3BTC/coin from Casascius directly. Over the last 2 years its increased to a 2.5-3.0BTC value
705  Bitcoin / Hardware / Re: A bitcoin miner in every hand on: May 27, 2015, 12:59:03 PM


Here's a list of things I really doubt:

- someone would waste the time/effort to hack a 21 inc device holding fractions of a dollar
- an ethernet port + cable would be less expensive than wifi
- people want extra cables running though their house
- people want a phone charger that has to be within X feet of their router for it to function

Quote
At this point I can easily ignore the 35$ USB charging hubs. I don't like them so much, but the routers and mining cores into regular chips seem a very good idea with minimal capex.

I actually agree with you on this one.
I wouldn't say putting mining cores in regular chips is a great idea, but it's definitely not absurd like putting chips in a toaster/phone charger/microwave/etc.

Quote
Again wrong. How on earth can you compare the capex of these 2 situations? Any large player that wants to deploy much hashrate must invest into a good datacenter and into all the required infrastructure which means power and cooling. That adds up fast in terms of capex while having "miner in everything connected to a wall outlet" makes those datacenter costs obsolete.

How much do you think that a 100MW datacenter would cost to be ready for miners deployment? I think that the costs to have 500MW ready for miners are less than the costs directed towards "miners to all" program..

Based on my research, I'd say ~$60/kw for a Bitfury style "hashing center". (including everything but the miners)

+1. Its a nice idea, but the fact is that most mining now occurs only where power is <$0.10/kwh, which rules out these devices in almost half the world (including the majority of europe). That $35 hub would be earning meager scraps while dumping ~10W of heat without proper heatsinks or cooling. imaging plugging it in in an outlet behind a couch, or if clothing is dropped on/around it while plugged in (its extremely common for most people to do that with thier chargers already). its a fire hazard unless theres temperature shutdown built in (extra cost)

re:datacenter: I think $60/kw is pretty reasonable. A 30A 208V (6kW) circuit costs about $100-150 to install, $50 for additional power bars and ethernet, $5 of rack space and networking supplies, and the remaining ~$100-150 is spent on the building space (assuming $30/kw for this in scale)

-> its important to note that a datacenter will pay at least 30% less for power than most residences where this little wallwart is going to be used. couple that with economy of scale and mining will almost certainly centralise wherever power is <$0.07usd/kwh in the next decade.


all that said, if bitcoin price jumps up, and increases faster than the difficulty (remember theres probably 100-150PH of gear currently turned off because its >0.8w/gh) then we could see mining be profitable for anyone and everyone involved (like when it jumped to $1000 and even the guys with 0.25/kwh in the UK were mining)
706  Bitcoin / Hardware / Re: [ANN] Sfards: Results of The Best Miner is…Contest [Updated 26/05/15] on: May 27, 2015, 12:21:46 PM


I will forever cherish my Most Creative title as a miner inventor.  Thank you Sfards and if a lava lamp miner ever does come into existence, I hope I will be considered as a beta tester. Smiley Best of luck to you!

I give you huge credit on this.  It was a idea that made us all smile I think. It was one of those ideas that is crazy enough it could actually even work.   

I hope to see someone mod a miner to provide heat to a lava lamp.  I will be honest you have me thinking about putting a old lava lamp I know of in my pile of stuff behind a miner to see if I can get the heat. But I don't think I can achieve the hotness (which is normally a good thing Smiley ).

lavalamp bulbs are 25W in the majority of lamps. If you used a 24/7 heat source and deposited most heat to the lava (rather than the sides of the metal base) it could be functional with 15-20W worth of mining power, possibly just some stick miners glued to the bottom part of the glass base
707  Economy / Computer hardware / Re: Bitfury Full Kit w/ PSU and Frame .73 BTC on: May 25, 2015, 08:46:25 PM
the bitfury kit:
1) which connector slot version?
2) all 16 cards (400gh)?
3) what size PSU, and can it ship without the PSU to save money?

for the full bitfury kit and frame (i assume its the one that sidehack or whoever it was at the time was producing?), minus the PSU (i have my own) id offer something more along the lines of $100USD to be shipped to Toronto,ON

Hey there -

REv 2 slots  the ones that use pcie 1x slots.  Comes with all cards.  

Its going to cost me somewhere along the realm of $40 to get it out the door to you.  Bump it up to .55 BTC and you've got a deal.  I'll even throw in a block erupter and some bitcoin awareness gear.

The PSU is a 700 Watt PSU but the unit itself draws low watts in the high 400s I've observed.

any chance of a photo? curious what type of frame it is. also, still have no interest in the PSU, which is probably worth $40 if you sold it locally and will cut half of the shipping weight.

I'd do 0.4BTC for the frame and full bitfury assembly shipped to M6K Toronto. You can keep the PSU Smiley
708  Economy / Games and rounds / Re: SFARDS: “Speaking IMHO”- The Best Miner is…contest, 1 BTC for winner! on: May 25, 2015, 08:38:21 PM
Well week's gone now...

well, I feel like my post might be a serious contender for "The most market appealing design award: 100 LTC", if not quite the "Most Creative".

Hopefully SFARDS was serious about the rewards Smiley I didn't post a payment address at the time because it seems unnecessary, and would prefer to be contacted by PM to share that sort of info.

The 'ideal' unit would be something small enough for home use, but large enough that it could be used in larger farms profitably. This is best seen as:


1) 1500-5000GH/unit
2) $400-1500/unit
3) external (user-provided) power supply, hopefully drawing less than 250W/PCIe connector
4) rack-mount dimensions (2U-4U) and stackable. Half-depth would be a smart way to keep the unit small but remain rackmountable.
5) fans that are less than 70dB. That should make it reasonable for home use (at least in a spare bedroom or basement). This means ideally 120mm or 140mm fans only.

6) string design for chips - this is >10% more efficienct
7) design the webUI similarly to what spondoolies-tech built (very detailed settings, stats, logging, scheduling, etc)
Cool design the ability to modify BOTH the voltage AND frequency, as well as the fan settings if possible. this allows wider range of users to run it at peak or in quieter modes.

9) basic outer case. put the power and ethernet connections on the same side, use a basic sheet metal enclosure. 2-4 leds is sufficienct, anything more becomes 'too blinky'. something like the SP3x design is ideal.
10) consider a small screen that can readout hashrate and/or IP address.


MY 'DO-NOT' LIST:
1) fans <80mm are loud
2) miners <1500GH mean buyers end up with a huge stack of units. dont build anything with <$400 MSRP
3) miners >40 pounds (~16kg) can be a bit heavy to move around
4) miners that act as nightlights. all i want is a singlular LED that is lit solid in normal operation and isnt blinding.


-Klondike
709  Economy / Computer hardware / Re: Bitfury Full Kit w/ PSU and Frame .73 BTC on: May 21, 2015, 01:22:39 PM
the bitfury kit:
1) which connector slot version?
2) all 16 cards (400gh)?
3) what size PSU, and can it ship without the PSU to save money?

for the full bitfury kit and frame (i assume its the one that sidehack or whoever it was at the time was producing?), minus the PSU (i have my own) id offer something more along the lines of $100USD to be shipped to Toronto,ON
710  Economy / Computer hardware / Re: FS: Antminer S4's (Ontario, Canada) on: May 21, 2015, 01:19:29 PM
Hey man.  Yeah I'll be in your hood on June 11th if that works for you?  Also going to be in Scarborough & Mississauga next week possibly.

These both have factory internal PSU's, and are the ring terminal type.

either of those dates would probably work - when you say the ring terminal type, is that the one that had failure issues, or the 2nd version PSU?
711  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: May 21, 2015, 12:56:48 PM
Have Bitmain any plans on lowering S5 (and maybe shipping?) price?  Roll Eyes
I'm not really surprised they've held firm at the $340 price for so long - They are the only game in town at present, and can charge whatever they want for their products.

I not a fan of such arrogant behaviour.

As a result, for the last few months, I've been taking advantage of the low BTC/USD pricing, and every time I think about buying another miner, I just buy 1BTC instead on Coinbase and think to myself "Now wasn't that easier and more cost-effective ?"

Given the current price of ~$235 USD/BTC, it doesn't make any financial sense purchasing miners at their current pricing. An S5 priced at $340 is presently looking @ ~1year of runtime for ROI, excluding electrical and power supply costs.

It doesn't make any sense at all to buy Bitmain products, presently - A ROI will be difficult and uncertain.

+1. the prices are a bit high, yet understandable.
1) theres minimal competition
2) theres a strong market within china (where the shipping cost is <40% of sending overseas)
3) The units could be profitable for those with <7c/kwh power (especially if located in china and saving a large chunk of the shipping cost)

to be entirely honest, its all a gamble. If BTCUSD rises, mining returns will increase and hashrate will follow. However, theres a good chance that if BTC were to rise 4x in price in the next 12 months, difficulty would likely struggle to keep up since theres limited new production at the moment.
712  Bitcoin / Hardware / Re: GekkoScience BM1384 Project Development Discussion on: May 20, 2015, 09:17:53 PM
The thing is powered off a hacked-up BTCGarden AM-V1 VRM, which is also forwarding 12VDC into an S5 controller board. I've had to hack up the cable a bit to make it think there's a proper board plugged in, but the thing no mines away just fine in standalone.


I'd love to know more about that VRM and how/why you managed it.  I have one of those units sitting on a shelf turned off right now, and with <$200 resale value it seems
713  Economy / Computer hardware / Re: FS: Antminer S4's (Ontario, Canada) on: May 20, 2015, 09:08:04 PM
Sorry Kaltar, PSU's are due next week (I hope!). Lots of setbacks.

S4's are in North Bay, ON.  I will also be heading to the GTA in about 2 weeks (around the 26th) and could meet up along Hwy 11/400/401 towards Scarborough.

The 2880W PSU's are the only ones I carry, you can hit up sidehack, quakefiend or holybitcoin.com for other server PSU's in lower wattage.

hey Finksy, if you're down in my area again I'm interested.

both are working fine with the internal PSUs - and which version of the PSU?
714  Bitcoin / Hardware / Re: A bitcoin miner in every hand on: May 19, 2015, 04:18:35 AM
as a way to get people interested - its cool. but the application of it is stupid.

Lets start at the top:
1) mining will make the phone hot. without a fan or heatsinks, its likely that even 5W worth of mining will get hot to the touch, and possibly a fire hazard if the phone is stuck in the couch under a blanket or pillow.
2) 5W is about 10GH worth of mining, maybe a bit more. Thats about 0.0001BTC/day when operating 24/7
3) That sort of power draw is completely impractical any time the phone isnt plugged in and on a non-flammable surface, so 2-4hrs of mining a day is more likely.
4) that means to earn $5 (the very cheapest price that a mining chip could be produced and integrated into a cellphone for) could take anything from 220days (at 24/7) to >6years if you mine 6hrs/day
5) The above does not factor in the power cost. which is probably 50% more costly than the bitcoins produced (for the average residential electricity cost)


short story: they would be better off issueing a $5 BTC voucher with the purchase of a phone, then to design a phone that makes pennies a day while operating at uncomfortable temperatures and having battery issues.

       the same goes for any 'IoT' concepts that involve building bitcoin miners in places/objects that would be mining for anything less than 12hrs/day using residential eletricity.
715  Bitcoin / Hardware / Re: BITMAIN AntMiner APW3-12-1600 PSU Series on: May 15, 2015, 12:11:44 PM
Its 18AWG.

not good but thanks for an honest answer.

if I buy this with 2 s-5's  I will be pushing the wires at freq 375 and higher.

Why would it be? S6 @ 375 is no more than 600W pre PSU = 150W per cable strand = perfectly fine on 16AWG. On tubes we were doing 250-300W per cable strand on 16AWG which was the sensible limit.


you somehow went from saying its 18awg to justifying the safety of 16awg wires.

If this is made with 18awg, thats not good. It might be fine for an S5, where you occupy all 4 connectors with thier own 18awg wire (and could fit 3xS5 on the 1600W PSU, possibly with a tiny amount of underclocking if required), but for a lot of other hardware (ie: anything that would draw >180w/cable) its dangerous.

my rule of thimb is that 18awg can handle a maximum of 150-200W depending on the cable quality. 16awg can handle 250-320W depending on the cable quality. I would much rather see bitmain offer this PSU (or as a secondary option) with 16awg wire for a few dollars more.
716  Other / Archival / Re: Pictures of your mining rigs! on: May 15, 2015, 11:58:56 AM
looked at different setups surprised to see how u guys overcome on the electricity cost, currently im having 2-S1 and 6 GAW furys in one farm and they are not comfortable with the microwave so need to turn them off before heating up things Smiley

my question is how to calculate electricity cost for the farm which includes multiple asics and GPU miners? and compare it with the mining profit?


You would calculate based on watts used and electricity cost.  Farms at this point would be Asic's, GPU's are pretty much over as far making much money.  You can use a kill-a-watt to get the actual usage.   But there are calculators to times it with rate and get full month cost.

In a farm you would also have overhead, heat extraction, etc.  You have to find a formula to make sure you cover all this if you were running a farm.

well thanks for such a detailed reply but i just wanted to get 2 points which are highlighted in your reply

GPU mining is only good for a small number of altcoins, and not very profitable (even if you run X11/x13)
kill-a-watt is a device that you plug in between the outlet and your system to find the power consumption.
717  Economy / Games and rounds / Re: SFARDS: “Speaking IMHO”- The Best Miner is…contest, 1 BTC for winner! on: May 15, 2015, 11:50:49 AM
my ideal miner would have 90 ROI, great efficiency and great reliability. at current BTC prices the antminer s5 with power supply is 242 day ROI. thats ridiculous. its just too damn long.

right now, 90day ROI is not likely. 150days is a more realistic target. anything >200days is risky.
718  Bitcoin / Hardware / Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs on: May 13, 2015, 08:56:30 PM
Overmoderation again. Especially in a SELF MODDED thread. Someone doesn't want STech thread bumped but they tend to ignore that in Bitmaintech or Avalon threads that predominate this section of the forum.

what are you talking about? The hardware forum has this thread and an SP20 thread, both of which are not very busy, and with no real news out of SP-T. If you want more threads, make one front-page worthy.
719  Economy / Computer hardware / Re: ALL of my mining gear is for sale on: May 13, 2015, 01:04:12 PM
not sure if i can take the entire lot, but if you were willing to split it up a bit, I would take $500-1000 worth of it
720  Economy / Games and rounds / Re: SFARDS: “Speaking IMHO”- The Best Miner is…contest, 1 BTC for winner! on: May 12, 2015, 10:46:29 PM
actually, pool circulation generally runs 24/7. its the heating functions that can be turned on or off.

fact is that if the water isnt circulating, or the pool is warm enough, you will have to turn off the unit or dump the heat elsewhere when mining.

Not any pool I've ever owned.  My current one for example only runs 8 hours per day, during off-peak hours.  Ideal mining time.

huh - i need to check my buddy's pool - pretty sure his is 24/7 circulation.
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