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2701  Economy / Goods / Re: [WTB] 2011 S1 Casascius 1 BTC Brass Coin...Preferably Graded on: February 10, 2014, 12:44:10 AM
How do you get a coin graded?

In canada, I belive there is a company in Quebec called PGC or PCGS that does grading - I have considered it but felt it was not necessary unless the value of a bitcoin goes >$1200 again or there becomes any reason to test Casascius coins for authenticity
2702  Economy / Computer hardware / Re: [WTS] - Toronto, ON -400GHash - 2x Antminer S1 + power supply in stacking crate on: February 09, 2014, 04:22:02 PM
I can also sell units individually for 2.15BTC
2703  Economy / Collectibles / Re: (WTS) 2013 Silver-w/-Gold 1BTC Casascius coins - Toronto, Ontario - 2.25BTC on: February 09, 2014, 08:00:26 AM
2.1 pretty good offer... Not seen these actually sell for more than 2.  I keep seeing everyone ask more and lower the prices over and over....

There are only 700 of these coins, making it [one of] the rarer casascius 1BTC coins. I am quite happy holding them for as long as it takes to sell them at my price-point, which is competitive with others on these forums and perhaps the cheapest option for Canada
2704  Economy / Collectibles / Re: (WTS) 2013 Silver-w/-Gold 1BTC Casascius coins - Toronto, Ontario - 2.25BTC on: February 09, 2014, 07:58:11 AM
Would you do 2.1BTC shipped to Australia?

No. 2.25 BTC firm and would include shipping to australia via xpresspost (3-5 days)
2705  Bitcoin / Hardware / Re: Which USB hub to use with Block Erupters | NanoFury NF1 | BPMC Red Fury | Ant U1 on: February 09, 2014, 05:30:28 AM
Hey guys, I just saw this on ebay   limited seller history but seems a real decent price.  how many usable ports do you think I will get with the 1x 20V 4.5A Power Supply?

http://www.ebay.com/itm/261376179469

4.5a has enuf juice for 9 stock miners.

USB miners pull about .05 - .07 each
Some more, much more when clocked.

10a min for 20miners 12a would be better.

ferget about watts, it is all about amps, watts can easily be calculated v x a=w

yeah... Roll Eyes

20V*4.5A = 90W
5V*0.5A=2.5W

90/2.5 = 36 USB Miners that run at typical 500mA
2706  Bitcoin / Mining support / Re: [GUIDE] BitFury Miner Support/Tuning on: February 09, 2014, 05:24:55 AM
^really hope it involves actual competitive pricing. For a more-stable, stackable/enclosed bitfury I would gladly add it to my growing collection of antminers - but only if they can get their shit together and
1) price in BTC - for the love of god.
2) price no higher then 10% above the antminer - those things are simple, elegant tanks that dont wobble, dont blow sd cards, and only require the single fan that they ship with. The only upside to the bitfury is saving ~1w/GH
2707  Bitcoin / Hardware / Re: [ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING*** on: February 09, 2014, 05:17:48 AM
Just letting everyone know:

Dave is at the Bitcoin Germany convention this week and then he is heading up to meet Punin in real life for the first time.   

I hope to have some really really good news in a week or so.
I sure hope so. Just keep in mind that Bitmain is shipping in-stock units at $5/gh.

+1

The reality of it is: they are both insanely rich from sales of the bitfury design already, and will probably just spend several days doing blow in a Munich penthouse
2708  Economy / Speculation / Re: What is your personal "oh shit" price? on: February 08, 2014, 07:30:41 PM
I bought my bitcoin investment stash in April 2013 so u can figure out when I start sweating Tongue . Still hodling ever since.

Ive been buying on dips since november, and will buy more soon, however any new btc I buy goes for investments in other stocks or coins or for purchasing goods and services.

Is there some weird 'hodling' meme going on in the economics section, or is it simply a lack of coordination in bitcoin owners?
2709  Bitcoin / Hardware / Re: [Antminer S1 open for sale again] The last round before the Chinese New Year on: February 08, 2014, 07:19:13 PM
Wish the UK had MyUPS only for America :/ Dat sucks  Undecided

make that only the US of America. Canada also lacks the service, and their Ontario call center is terrible
2710  Economy / Speculation / Re: What is your personal "oh shit" price? on: February 08, 2014, 04:25:02 PM
below $600 I may buy some more
below $400 I WILL buy more.

*assuming the drop is due to market jitters and weak hands, rather than major bad news
2711  Bitcoin / Hardware / Re: DIY ASICS? on: February 08, 2014, 04:17:30 PM
Hi,

I see you can purchase chips such as the Avalon ones as well as buy burnins PCB's, but how would you get these to mine once you've soldered the chips to the board what is there to do next?

Sorry its brief, interested in seeing where this goes..

Also, can someone explain what the green cable is at the top and how would this unit connect to the network?
Thanks

that is the HEX16A i beleive - theres a few threads in the forum on it. It connects via a microusb cable and the green thing is screw terminals for powe if not using the pci-leads
2712  Bitcoin / Hardware / Re: Avalon2 based miner from Technobit - HEX16A2 on: February 08, 2014, 04:04:57 PM
Hi

I have a big problem.
I have 5 miners and all of them work fine IF a let them work one by one...even two together work fine.
BUT.....

If i want to let 3 miners work together, the PSU crashes.

The miners, the hub and the MR-3020 are ALL conected to the same PSU-Molex cable-tree.
The PSU has 550W....

What can be the problem?

Can it be that the PSU is too old even it has NEW 550W?

Pls help me ..... i cann't solve this problem
what is the rating AMPS of PSU 12V rail is it a single one?

PSU-Model: pentium iv & pfc model lc6550G version 2.0

MAC DC OUTPUT:
+12V1 -> 16A
+12V2 -> 18A


I made a shortcut betwen the green and black cable to turn the PSU on without motherboard.
So
1. Chosse a single rail PSU
2. When board is OC-e it is eating about 9.5 Amps
So if i were on your shoes i will connect just two boards to this PSU when i am absolutely sure that each board is connected on a separate 12V rail. Does this explanation clears up a mastery crash;)
And do not push it to much magic smoke will come out sooner or later. I am not joking here i am serious

So you say that the PSU is too poor to run more then 2 boards at once?

Will a new PSU work better and how much power do i need to run all 5 together?

okay, its not just the PSU's fault, its also yours.
1) when you say you run 2 or even 3 boards plus other components on a single 'molex tree', are you referring to a singlular cable with multiple 4-pin molex connectors along its length?
if you are - thats problem #1. There is only a single 12V lead in that cable, meaning two things:
a) it will be tied to only one of the PSU's 12V rails. lets assume the lower, 16A: 16*12=192W. This is barely enough power for 2 units at full speed/overclock.
b) check your cable. its unsafe to pull more than 60-100w through a single 18AWG cable like your PSU probably has. You can easily melt the plastic and start fires.

2) In order to properly power more than 2 of these on your supply, you need to identify which rail supplies which 12V power cables. Usually 1 rail is dedicated to the 4/8-pin square ATX mobo plugs and the other for the PCI cables and molex accessory cables. using the above math, you can assume you have 2 rails each capable of 2 devices. You 100% will not be able to fit 5 without massive underclocking of 3 of them.

my advice: snip the heads off the PCI and ATX mobo connectors, and use a wire pair per device.
2713  Bitcoin / Hardware / Re: {BFL} Butterfly Labs will give their customers a FREEEEEE "Monarch" on: February 08, 2014, 12:46:48 AM
Very glad I bought $2500 of BTC instead of BFL (or other ASICs) in Feb of 2012. 50x return on the ones I sold so far.  Shocked
A little sad I bought $2500 of GPUs in Dec 2012. They generated a good return via Litecoin mining but no where near as good as buying BTC.  Cry

Soooooo glad I didn't buy BFL, I would have missed the bus and only gotten .15 BTC back for every 1 BTC lost.  Wink

Happy to hear you came up Smiley

I had a late Jalapeno order (originally looked like september delivery, more like dec/jan) and cancelled it with paypal following some tips posted around these forums at the time.

full refund and I never looked back. poked my head in to look at the monarchs, then walked away laughing and shaking my head
2714  Bitcoin / Hardware / Re: [ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING*** on: February 07, 2014, 10:57:38 PM
9 Ants and counting.  1.8 Th/s

Any network trouble with that many Huh  Using switches,router or WiFi  Huh

9 isnt many (think about the asicminer backplane where all 10 cards needed a connection!)

I personally am using a 48-port HP Prolink switch i got used for $10. Im only using a half-dozen of its ports, but its a great peice of hardware, runs on 120V, and is dead-easry to set up, connecting its trunk to one of the LAN ports on my wireless router

Thanks for shareing the info!! I have an HP Procurve switch 2224/24 port,got it for free  Grin :



So I should be good to go  Cool Cheesy

Thanks guys!!!!

yours does not seem to have designated 'trunk' port(s). (on mine, there are 48 10/100 ports plus 2 10/100/1000 ports that can be used for the link to the router. With yours, plugging any port of the switch to a LAN port from your router should do the trick. Ive only used static IPs and those work without a hitch. havent tried any DHCP but i dont see it being a problem
2715  Economy / Service Discussion / Re: CEX.IO on: February 07, 2014, 08:48:24 PM
you can get 1GH/share from the 100TH (500TH) mine on picostocks for 0.015BTC/GH

people buying on CEX.io are insane - the asking price right now is almost 3x what a GH will ever produce from mining. Everyone seems to just want to use the site for day-trading, then complains that they made no money
2716  Bitcoin / Hardware / Re: [ANN] US/North American Bitfury sales NEW STOCK ***NOW SHIPPING*** on: February 07, 2014, 04:17:14 PM
9 Ants and counting.  1.8 Th/s

Any network trouble with that many Huh  Using switches,router or WiFi  Huh

9 isnt many (think about the asicminer backplane where all 10 cards needed a connection!)

I personally am using a 48-port HP Prolink switch i got used for $10. Im only using a half-dozen of its ports, but its a great peice of hardware, runs on 120V, and is dead-easry to set up, connecting its trunk to one of the LAN ports on my wireless router
2717  Bitcoin / Hardware / Re: CoinTerra announces its first ASIC - Hash-Rate greater than 500 GH/s on: February 07, 2014, 06:13:54 AM
Why are we talking about alts in this thread? WTF???

why are we asking for instructions on how to use asic after ordering 250k usd worth.is it known how to use these things to mine.. come on now.

This is a CoinTerra Bitcoin miner thread. It is about the CT units and I am asking how to operate it.

You are talking about alt coins. I hope you get banned.

Everyone please report this off topic stuff to mods.

do 5 min research stop asking to be spoonfed

think about what you actually asked. 91 pages in.months after ordering 10's of TH worth. "So, is it known how to use these things to mine?" what do you think? no..nobody know how to operate ASIC and nobody have any clue how to mine bitcoin, they are just using them as paperweights Roll Eyes..wasting space just as much as what you are complain about  


the issue is the alt-coins, not the assistance in getting started with a cointerra product. one of those issues is off-topic and the other one 100% belongs in this thread
2718  Economy / Computer hardware / Re: [WTS] - Toronto, ON -400GHash - 2x Antminer S1 + power supply in stacking crate on: February 07, 2014, 04:43:12 AM
^smirk. thanks guys, but This thing is worth more than 3.5BTC just for the components:
840+W of power: ~0.06BTC
2x Antminer: 2.90 BTC
2x *6-10 extra days of mining* = ~0.42
wiring, construction time, crate, etc

I am asking a premium for the work put into making antminers stackable and sold pre-overclocked. I am still looking for more, and can negotiate for cash
2719  Bitcoin / Hardware / Re: Announcement: Bitmain launches AntMiner solution, 0.68 J/GH on chip on: February 06, 2014, 10:14:28 PM
"About how much is the customs fee?  TIA"

If you are in UK, about 35 Pounds each, if you're in the good ole US, $0.

I paid 216 for 9.
But there was no consistency in the charges. I received 3 invoices (as the Ants were 3x3) and each got a different amount.

It's a price based on the spot USD/GBP rate.

Is there a Canadian that can speak to our cost?

~$13.26 per COD.

^sounds about right. I remember picking up 2 units cost ~$52 (about $20 each plus a $10 or more brokerage fee) while a single unit was about $30 due to the fee still being the same. getting more in a shipment would thus negate some of the fixed fees
2720  Bitcoin / Hardware / Re: [Antminer S1 open for sale again] The last round before the Chinese New Year on: February 06, 2014, 08:00:08 PM
I always use allchains.com for the most accurate next difficulty measurement.

I think all it does is take the amount of time since the last change and the number of blocks found since then and bases it off that. It does the same thing bitcoin does, but bitcoin does it every 2016 blocks and the site does it every 2 mins. On the site now you can see that only about 12% has been measured since the last change, so we don't have much to go off of yet. When that number approaches 100% the estimate will also approach 100% accuracy.

I'm not even sure what calculation bitcoinwisdom uses. Their estimates can vary greatly and even be wrong right before a difficulty change.

I can guarantee that we will have difficulties increase by an average of 25% every 11 days,
to the network limits up 1000 PH/s , after that it will slow down

http://btcinvest.net/en/bitcoin-mining-profit-calculator.php?diff=2621404453&dcosts=0.2&diff_mincrease=25&blpbtc=25&dhsmhs=1000&diff_mincreasedecrease=1&btcusd=826.92&dpowcon=2&btcusd_mincrease=0&pcost=0.15&calcweeks=17&dleadtime=0&action=calc

do your math you idiot. Using a correct calculation method of 25% difficulty jumps that taper slightly over time and $0.20 for 1GH at 2W/Gh of power use, you would see a return of 3900% or 39x your investment.
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