[ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production

[marto74]

Both are possible
Just sent a msg from your technobit account

[glen123]

Done over Technobit HP ( Contact )


Hello !

i just send the Miner for RMA
because i want to buy another i choose to "upgrade" this RMA Unit to an HEX8 260 GHS Version.

following URL :
https://bitcointalk.org/index.php?topic=376351.msg6407336#msg6407336

Can you please inform me for further Details ?

Greetings Glen

[dogie]

Dogie's comprehensive setup guide in super HD!

[marto74]

Price and delivery updated

[glen123]

Hi !

hope its good for me , cause i send back an faulty 130 Unit for RMA and get back an 260 Unit 

the RMA must be now landing in Bulgary ,

http://nolp.dhl.de/nextt-online-public/set_identcodes.do?lang=de&idc=712140699059&rfn=&extendedSearch=true


Greetz Glen

[FrictionlessCoin]

Hello,

A bunch of AMT customers have received AMT systems that are non-working.

Would it be possible for us to send our boards to you to be re-assembled into TechnoBit boards?

You will just have to remove the surface mounted A1 chips.

Is this something that is viable?

[loshia]

Hello,

A bunch of AMT customers have received AMT systems that are non-working.

Would it be possible for us to send our boards to you to be re-assembled into TechnoBit boards?

You will just have to remove the surface mounted A1 chips.

Is this something that is viable?

All of the AMT customers execpt melbro did recive a crap. not a bunch all exept one!
Are you ready to pay shiping back and fourth + 1month  delay + service + pcb cost?
If yes then somone can comment if it is possible at at in technical terms
Besides you do not know if chips are working at all
that is noncence
The best aproch will be to order populated board without the chips and do it localy.
Nonworking chip in the beginning of the chain can make all the rest not to work
And finaly cheaper will be just to order real fuly populated  board which is working fantastic

[WiWi]

Just bought a 8A1 for 400 euro's.
it is working fine, but the two fans are not working when connected to the board.
I do supply them external now (connected to same psu).

Does someone know why the board does not supply them (maybe it has happend more often)?

[FrictionlessCoin]

Hello,

A bunch of AMT customers have received AMT systems that are non-working.

Would it be possible for us to send our boards to you to be re-assembled into TechnoBit boards?

You will just have to remove the surface mounted A1 chips.

Is this something that is viable?

All of the AMT customers execpt melbro did recive a crap. not a bunch all exept one!
Are you ready to pay shiping back and fourth + 1month  delay + service + pcb cost?
If yes then somone can comment if it is possible at at in technical terms
Besides you do not know if chips are working at all
that is noncence
The best aproch will be to order populated board without the chips and do it localy.
Nonworking chip in the beginning of the chain can make all the rest not to work
And finaly cheaper will be just to order real fuly populated  board which is working fantastic

That is a thought,  how much for a fully populated board without the A1 chips?   We can mount it ourselves.

Marto can you comment.

[cannachris]

could  somebody upload the hex8a1 release of hexminer? the link on the technobit  site is dead

[marto74]

could  somebody upload the hex8a1 release of hexminer? the link on the technobit  site is dead

I will be able to check in 2 days
Anyway I strongly sugest using cgminer
You can find here a tread by 2good for windows build

[marto74]

Hello,

A bunch of AMT customers have received AMT systems that are non-working.

Would it be possible for us to send our boards to you to be re-assembled into TechnoBit boards?

You will just have to remove the surface mounted A1 chips.

Is this something that is viable?

All of the AMT customers execpt melbro did recive a crap. not a bunch all exept one!
Are you ready to pay shiping back and fourth + 1month  delay + service + pcb cost?
If yes then somone can comment if it is possible at at in technical terms
Besides you do not know if chips are working at all
that is noncence
The best aproch will be to order populated board without the chips and do it localy.
Nonworking chip in the beginning of the chain can make all the rest not to work
And finaly cheaper will be just to order real fuly populated  board which is working fantastic

That is a thought,  how much for a fully populated board without the A1 chips?   We can mount it ourselves.

Marto can you comment.

You can order assembly service and to comment in mail or pm that you want them without asics

[cannachris]

Just bought a 8A1 for 400 euro's.
it is working fine, but the two fans are not working when connected to the board.
I do supply them external now (connected to same psu).

Does someone know why the board does not supply them (maybe it has happend more often)?

If anyone else (preferrably EU) has any hex8a1's to sell, We can talk about this price range I'd like to get one or two more

[cannachris]

Hi thanks for replies and info, it helps.

so on 130  unit there are 4 chips?

also why are there two 6 pin PCI-e  and what are the terminals ?

what info have you based power (12v 17amp) on?

I would like to ask Marto what sort of power supply he would use please?

Yes (lol) i have run two 130 boards on the 300w PSU conected like something out of film adaption of Jules Vern novel.
one PSU is not working now (over heated) in an other 12v line wire began to melt at hexminer voltage 1000. I got a few of these 300w PSU for cheap price (10 euro each), yes u get what u pay for some times.

but it has meant I did not get chance to break more expensive PSU ( I am a beginer really)
When I ran the two 130 units hexminer voltage "890" PSU heating up was less and ran 4-5 hours but with low hash rate
 about +/-100gh/s.

so for correct power supply I should know all factors of power requirements of parts on unit eg. chip, fans etc.
ok thanks again and if you can help with further infomation that would be ace!

EU40Niner

After all the explanations i am wandering how you still are not on fire
Listen to zich
Chips need power - that is why two connectors are there. Zich have measured them in the past

In short for eight chips measured by zich

Here is the result on 12V rail:
260/1005 = 33   A
265/1030 = 37   A
265/1040 = 38,5 A
265/1050 = 39   A
270/1050 = 40,5 A
You can go lower of course that is OCed

So divide this by two and add 15% safety margin at least for 4 chips

Has anyone successfully tried 270/1050 for extended periods of time in a ~23 degrees C room? Running at 260 seems to work fine, but this saved me after my tl-mr3020 went crazy: https://bitcointa.lk/threads/cgminer-windows-build-for-technobit-boards.298736/

[edit] btw @ 260-1000 I have 0% hw errors, does that mean i can safely try 270/1050?

[Zich]

Has anyone successfully tried 270/1050 for extended periods of time in a ~23 degrees C room? Running at 260 seems to work fine, but this saved me after my tl-mr3020 went crazy: https://bitcointa.lk/threads/cgminer-windows-build-for-technobit-boards.298736/

[edit] btw @ 260-1000 I have 0% hw errors, does that mean i can safely try 270/1050?

The test is for current measurement only. I only run it for about 5 minutes since the heatsink become very-very hot.

You can see the current usage is very high for only 10 GH increment LOL

[iFA88]

Dear Marto!

There are any news from my hex8 from RMA ? (Hungary, Andor Rajci)
I have send you soon a month the device and no answer.
1 month LOSS of mining.

Thanks the answer.
-iFA88

[glen123]

Another one RMA Question  :

i Send my 130 Unit back ( i know you start work today after Holidays )
and i want to upgrade to 260

Now the 260 Unit cost me 547 Euro and the 130 Unit 289 Euros

You wrote :
-----------------------
Martin Sirakov
2014-04-27 08:22:36    Dear Customer,

Make a new order for 130 ghs and pay it
We'll ship 1 x 260 Ghs
as soon you RMA device is here

Regards,
Customer service
Glen Cassidy
2014-04-26 19:14:23    Hello !

i just send the Miner for RMA
because i want to buy another i choose to "upgrade" this RMA Unit to an HEX8 260 GHS Version.

following URL :
https://bitcointalk.org/index.php?topic=376351.msg6407336#msg6407336
--------------------

Mhhm my original Order was :

Total products : 499,00€
Total shipping : 32,00€
Total 531,00€
Shipment MARCH 2014    130 GHs HEX8A1 Coincraft A1 miner    1    499,00€    499,00€



What about Pricediscussion ? i am willing to pay 100 Euros more ( 499+100 )  thats 599 Euro for the Hardware.

Can you the send me then back the 130 RMA as 260 Unit ?

Otherwise if i had to pay more the send back my 130 Unit


Hope my English is not so bad that you understand what i mean ;-)

Greetz Glen

[loshia]

Just to let you know guys today and tomorrow are a national holidays in Bulgaria

[FrictionlessCoin]

Do you folks handle U.S.A. orders?

[Lucko]

Need MITM protection... Update for router...

This is fix for ants https://bitcointalk.org/index.php?topic=344970.msg6533560#msg6533560