Bitcoin Forum
May 23, 2024, 05:11:20 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 [29] 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 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 »
561  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 21, 2014, 02:32:18 PM
Well I got on

http://technobit.eu/index.php?id_product=61&controller=product&id_lang=1

eventually. But they were all sold out.

Should have restricted one per customer and previous customers only to give us loyal customers a fair chance. Cry

UPDATE: EVERYTHING IS OUT OF STOCK! MAYBE AN ERROR?

or is Martin listing them for sale 1 at a time?
562  Bitcoin / Hardware / Re: Technobit HEX16B - Bitfury based miner in hand on: January 21, 2014, 02:01:47 PM
Has anyone been able to get these to co-exist with HEX16A2's?

When i added a 16B to my 2x A2+tplink+hub the 16B starts hashing and the A2's are detected but don't hash. Power is not an issue as the 16b is from a different PSU. THe tplink is running 1.3 but changing to 1.5 did not seem to help. Any idea's?

With the latest firmware they should work.

I use 2 power supplies and have problems with the 5v power leaking from one of the Hex16Bs and competing over a shared cheap USB and TP-Link.

It was the first one I got which has 2 Power blocks on the board and 2000rpm fan, so it's easy to identify, the 5 other good Hex16B only have 1 power block and 4500rpm fans.

It would cause the miners on 1 power supply to fail soon after starting mining. They would run okay as long as I kept everything separate.

So either put them on separate TP-links and hubs or this is what I did...

Swapped my cheap £2/$3 no-name Chinese hubs (which worked even if something was leaking power) for my branded Chinese Orico hub with power protection.

I knew this Orico had problems disabling the first miner I got, but the rest seemed okay, so I taped out the 5v and ground in the USB connector for the bad one and it all worked!

Now on this hub (which has power protection) the whole rig runs more stable.
Running 25 days+ no issues 1x TP-Link + Orico 10 Port Hub + 6xHex16B + 2x350W PSUs.

The moral of this story is always use a power protected USB hub!
563  Other / CPU/GPU Bitcoin mining hardware / Re: Can you use two different GPUs to mine (650 2GB and a 650ti 2GB). on: January 21, 2014, 01:49:05 PM
Yes, but Nvidia are really bad, you'd be best selling them on eBay and buying AMD instead.

https://litecoin.info/Mining_hardware_comparison (Scrypt)

https://en.bitcoin.it/wiki/Mining_hardware_comparison (SHA-256)
564  Alternate cryptocurrencies / Mining (Altcoins) / Re: What kh/s can i expect from A4 4000 APU vs other APUs? on: January 21, 2014, 01:35:19 PM
https://litecoin.info/Mining_hardware_comparison#AMD
565  Alternate cryptocurrencies / Mining (Altcoins) / Re: which is the best ltc pool? on: January 21, 2014, 01:18:12 PM
If you have enough MH I'd recommend using a P2Pool

I used pool.fabulouspanda.co.uk:9327 but there's a list of others at http://p2pool.hostv.pl

No account (just use your address as your username and anything as the password) and instant payout as blocks are solved.

If your MH is too low though you won't get a payout because you're not get above the dust level.

If you don't see any payout over 24hrs us a non p2p pool that accrues shares instead.
566  Bitcoin / Pools / Re: Which pool to use for Fail-Over? on: January 21, 2014, 01:11:59 PM
I use P2Pools as my backups. See http://p2pool.hostv.pl/ for a list.

No account required (just use your address as your username and anything as the password) and they pay out instantly a blocks are solved.
I'd see 4-5 payouts a day.

You need to be mining 15GH+ though or you won't see a payout because your not above the dust level.
567  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 21, 2014, 12:22:39 PM
Marto, how about making board with 2 chip only  Smiley
Small miner like me can't afford to buy the miner at that price  Cry

It means higher labour cost. That's why most people try to produce big 1500W machines. That max out the US home power socket.

Technobit's Bitcoin miners are quite small compared to what most produce. Bitmine.ch (the A1 chip maker) wont sell below 500GH miners.
568  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 21, 2014, 11:36:24 AM
Website is under maintenance. What is the price?

260 GHs HEX8A1 Coincraft A1 miner pre production

SHIPMENT 10-th FEBRUARY

30 pcs pre-production run

http://technobit.eu/index.php?id_product=61&controller=product&id_lang=1

About 1499 EUR

Seems a little high, the market is looking at $3/GH by April, and I was hoping for €1000 ($3/GH + 20% VAT) but maybe people will pay €1499.

I guess it's half the price of 6x Hex16B = 260GH which was 2999 EUR. (Still waiting for that ROI) So it's a good deal in that respect.  Wink

I really need to know how the W/GH at the wall compares with the Hex16B though (420W for 6x) and how noisy (hoping no 4500RPM fans!).

€1499 = 2.42 BTC. 260GH will mine about 0.06BTC a day right now. That's around 1.8BTC/pm (if theres no huge jump in difficulty/deliver on time)
569  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 21, 2014, 12:51:34 AM
The board is working stable @ 90+ GHs ( about 30+ GHs per chip) 8-10 hours already

Here is the preliminary look of the miner with cooling


Nicely done. Alas, have you thought about different fan placing? Those two fans look really loud. Maybe something like an AntMiner S1 construction? Where the fan blows horizontal on the board and not from top and bottom?

Agree, you just need some angle brackets,


and some metric spacers,


then you could mount a single fan blowing over both heatsinks and still be stackable.
570  Other / CPU/GPU Bitcoin mining hardware / Re: Good 1500w+ PSU on: January 20, 2014, 11:46:21 PM
The Enermax Maxrevo/Platimax 1500 have 6 separate power rails, you wont be able to load more than 30A per wire. Because it forces you to spread the load over at least 6 cables, you probably wont melt them. They're up to 94% efficient, which is good for your power bill, but note it's really a 1200V PSU as it's 100A max over all 12V rails.
571  Alternate cryptocurrencies / Mining (Altcoins) / Re: Suggestions for lower power cards for litecoin rig on: January 20, 2014, 09:38:36 PM
3x or 4x Gigabyte HD 7850 or R9 270 with Twin Fans are awesome for power efficiency and low noise.

572  Bitcoin / Mining speculation / Re: Mining with CEX.IO or why do I not believe skeptics on: January 20, 2014, 09:04:26 PM
Do you guys realize the CEX.io contact address is on Threadneedle Street?

The Bank of England is also on Threadneedle Street and it came to power as a central bank by buying all the Kings currency out of circulation (royal tally sticks).

Must watch video to educate yourself about the City of London not being London!

http://www.youtube.com/watch?v=LrObZ_HZZUc

Even the Queen of England has to get their permission before she can visit that's how powerful they are!

You don't know the power of the dark side!

http://www.youtube.com/watch?v=onhFH7jpq2c

 Wink
573  Bitcoin / Mining speculation / Re: Q2- Mining These Days COST YOU More than it GIVES on: January 20, 2014, 08:58:21 PM
No one here REALLY cares about the long term viability of Bitcoin or any other coin.  We all just want to get more money (US Dollars).

Wrong, I care, I want to be free to trade with anyone in the world, at zero cost, using a currency not backed by debt servitude (bondage/slavery).
574  Bitcoin / Mining / Re: The cost of running asics on: January 20, 2014, 08:50:43 PM
Quote
how much is it costing to run a 550gh asic at 800 watts in 24 hours, usd or gbp dosent matter

1KwH cost around 15c or 10p (look at your electricity bill to be more accurate)

800W = 0.8KwH = 12c or 8p

24hrs x 12c = $2.88

24hrs x 8p = £1.92
575  Bitcoin / Pools / Re: ghash.io is becoming SHOCKINGLY AGGRESSIVE NOW, closing in 45% on: January 20, 2014, 08:12:30 PM
Do you guys know CEX.io contact address is on Threadneedle Street?

You know what else is on Threadneedle Street, The Bank of England! It came to power as a central bank by buying all the Kings currency out of circulation (royal tally sticks).

Must watch video to educate yourself about the City of London not being London!

http://www.youtube.com/watch?v=LrObZ_HZZUc

Even the Queen of England has to get their permission before she can visit that's how powerful they are!

You don't know the power of the dark side!

http://www.youtube.com/watch?v=onhFH7jpq2c

Wink

576  Bitcoin / Pools / Re: P2Pool public node on: January 20, 2014, 04:56:38 PM
Just a simple noobish question:

What is the average return per 1Gh/s?

42GH was paying me about 0.0038BTC x 4 times a day back in 2013-12-15 on FabulousPanda (P2P, 0.5% pool fee).
1Gh/s per day works out as 0.0152BTC / 42GH = 0.00036BTC.
But as you need to get over the 0.001BTC dust level, to be payed, you'll need at least 15GH mining or you will see nothing.
577  Bitcoin / Pools / Re: No payout ever received with p2pool? on: January 20, 2014, 04:11:22 PM
You need to get above the 0.001BTC dust threshold on your mining payments.
42GH was paying me about 0.0038BTC x 4 times a day back in 2013-12-15 on FabulousPanda (P2P, 0.5% pool fee).
So you'll probably need at least 15GH to make P2P pay above 0.001BTC.
578  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 20, 2014, 11:26:37 AM
HMM
2 PCI-E plugs for 1 miner?
That kinda kills the idea of buying more and stacking them to a "tower" like we could with the previous ones. Well, it's still possible, but then we'd need more PSU's.
How much is the power usage on these current models? Any numbers you can share?
Yeah when you need OC there is nothing you can do about it. Chip needs power dude:)


Yeah I did try to talk Marto into using a single 8-Pin PCI-E socket. Everyone has 4x 6+2 power connectors these days on 1000W PSUs.

You can get 8-pin to 2x6pin converters but we'll have to see how much power it draws to know if they'd work or melt.
579  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 20, 2014, 11:10:40 AM
I see a Sunon EE92251S3-000U-999 1.3W 2400RPM fan.

Hoping they don't need to stick the 4500RPM fans on it so it runs as quiet as the Hex16B!  Tongue

H/W errors look a lot better. Gratz on 30GH a chip.

What is the W/GH? I'd be interested to know if it beats 2xHex16B which are 120W at the board for 90GH
580  Bitcoin / Hardware / Re: [ANN] Technobit HEX8A1 - 6/8 chip Coincraft A1 board on: January 19, 2014, 04:58:42 PM
3 chips hashing @ 200 mhz and 25 GH/s each


Hot ... I am eager to see turbo Shocked

H/W Errors seems a bit high. If they're 3.4% in normal mode they're probably gonna be 10% in turbo?
That's about 2x what Avalon 55nm chips had.

Thanks for the update on progress.
Pages: « 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 [29] 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 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 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!