Nice Work Marto!
Good luck
Topic: [ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production - page 51. (Read 72425 times)
January 10, 2014, 11:03:37 AM
January 10, 2014, 11:01:46 AM
With all the claiming about technobit and delivery issues (yes, I also waited over a month and have some failure chips on my board), but I am really looking foward to this board and hope to place an order soon 
January 10, 2014, 10:46:01 AM
Nice. Hopefully the boards will be available soon and for a good price, like the first HEX16B were. I have a few BTCs saved for this.
January 10, 2014, 10:34:54 AM
Coincraft Sample chips and sample board porn 
We are going to PnP now
Welcome to the sleeples nights
Sweet We are going to PnP now
Welcome to the sleeples nights
January 10, 2014, 10:28:13 AM
Coincraft Sample chips and sample board porn
We are going to PnP now
Welcome to the sleeples nights
We are going to PnP now
Welcome to the sleeples nights
January 06, 2014, 06:21:14 PM
On the Zefirs thread - @ sample chips on the way to us
January 03, 2014, 09:16:09 AM
Do you got any updates on the chips? Bitmine did produce some chips, including some test samples.
Do you got an idea on the lead time of the assembly/production of the boards? From the point there is a working prototype board?
Do you got an idea on the lead time of the assembly/production of the boards? From the point there is a working prototype board?
December 24, 2013, 12:41:40 AM
Ok. But how about PSUs then? Does a PSU of 1000W have a fuse of 83 amps?
Switching power supplies usually do not have fuses on the secondary side. The protection is provided by a chip that monitors the current and shuts down the PSU if the current gets too large (overload, but not a short). If the output is shorted, then the feedback no longer works and the primary chip shuts down. Crappy PSUs do not have over current protection, but they still shut down when shorted (though the short has to be good).
But yes, if the 1kW 12V PSU had a fuse on its output the fuse would be something like 80A or 90A or multiple fuses (one for each "rail"). Just like my 650VA UPS has a fuse of 80A (actually two 40A fuses in parallel) in series with the battery (12V).
A 1kW PSU would have a 10A fuse on its input. That fuse does not protect the PSU from blowing up, it is there to protect the PSU from melting the power cable.
December 19, 2013, 08:50:38 PM
So 6 pin is more common even with 2-3 old power suply.
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
I'm not very good with electrical current, but i have a question. If i have a fuse of 16A won't that trigger if i plug 3x10A?
No your mains will be 16A x 230V/120V = 3680W/1920W (depending where you live) on the other side of the PSU it's 30A x 12V = 360W
Ok. But how about PSUs then? Does a PSU of 1000W have a fuse of 83 amps?
Kinda, the main fuse will be on the outside of the PSU on the mains circuit AC 230V/120V, but to confuse the matters they can also have 12v internal fuses too!
PC Direct Current 83A x 12V --- 12v Fuse ---[AC/DC Transformer]--- 230v/120v Fuse --- 16A x 230V/120V MAINS Alternating Current
December 19, 2013, 08:39:06 PM
Any idea on price?
December 19, 2013, 08:32:08 PM
So 6 pin is more common even with 2-3 old power suply.
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
I'm not very good with electrical current, but i have a question. If i have a fuse of 16A won't that trigger if i plug 3x10A?
No your mains will be 16A x 230V/120V = 3680W/1920W (depending where you live) on the other side of the PSU it's 30A x 12V = 360W
Ok. But how about PSUs then? Does a PSU of 1000W have a fuse of 83 amps?
December 19, 2013, 08:20:14 PM
So 6 pin is more common even with 2-3 old power suply.
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
I'm not very good with electrical current, but i have a question. If i have a fuse of 16A won't that trigger if i plug 3x10A?
No your mains will be 16A x 230V/120V = 3680W/1920W (depending where you live) on the other side of the PSU it's 30A x 12V = 360W
December 19, 2013, 07:45:09 PM
So 6 pin is more common even with 2-3 old power suply.
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
I'm not very good with electrical current, but i have a question. If i have a fuse of 16A won't that trigger if i plug 3x10A?
December 19, 2013, 07:23:28 PM
This is the chipmaker 
http://bitmine.ch/?page_id=863
Good luck Marto,I just hope the price is decent.
I just got 300GH of BlackArrow miners ordered for $352 each.Now to see how late they'll be
http://bitmine.ch/?page_id=863
Good luck Marto,I just hope the price is decent.
I just got 300GH of BlackArrow miners ordered for $352 each.Now to see how late they'll be
December 19, 2013, 06:17:58 PM
So 6 pin is more common even with 2-3 old power suply.
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
Also with 8 chips @ 40W in turbo mode 1 connector will not be enough
The connector can hold by specs 3 x 10 amp
December 19, 2013, 06:08:03 PM
2 x 6 pin PCI-e power connectors
Martin if you were planning 2x75w can I suggest a single 8pin PCI-e power connector instead?
Most power supplies are 6+2pin for 75W/150W PCI-e power these days.
Forcing customers to unhook the 2pin to make a 6pin 75w means wasting half the PSUs potential.
For example a typical 600w PSU with 2x 6+2pin could run 2 boards instead of 1 before resorting to messy/dangerous molex convertors.
Cheers.
December 19, 2013, 07:28:19 AM
Looking at your shop, going to spend soem money. Are these real or a scam?
Hex8A1 is not out yet. Who knows if the chips will ever arrive, but their videos look pretty convincing, their estimate was 34GH/s per chip.
I can vouch the Hex16B is real, I have one, awaiting delivery of another 5 before the end of December.
Pictures: https://bitcointalksearch.org/topic/technobit-hex16b-bitfury-based-miner-in-hand-338790
December 19, 2013, 07:27:15 AM
Looking at your shop, going to spend soem money. Are these real or a scam?
I believe it is genuine, technobit did deliver to some forumers here and even they don't, they are very much willing to refund. However the Coincraft A1 chip from Bitimine.ch is very questionable, first of all it is a little bit too good to be true (40GH/s per chip selling $80?), secondly so far never heard of anyone receive product/chip from them. If technobit selling this including chip, I would very much like to place some order as well.
December 19, 2013, 07:13:19 AM
Looking at your shop, going to spend soem money. Are these real or a scam?
December 19, 2013, 02:16:14 AM
Very nice design put me down for a batch. Thank yoU!
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