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Topic: [ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production - page 29. (Read 72425 times)

hero member
Activity: 728
Merit: 500
member
Activity: 93
Merit: 10
Sorry about that Gator.
Specially for customers like you we are finishing now 4 chip version with normal heat sink and fans.
I hope it will be stable @ 130 range  with nice 2-3w fans.
The damn chip is sooo power hungry

Update in Monday

Marto,

Im still waiting for my hex16b, anyway to convert this to 130 GHs HEX8A1, difference wil be in your advantage.

rgdz,
bhai
newbie
Activity: 26
Merit: 0
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question 

There is some mix in the picture, but i found picture with small heatsink using one PCI-e power connectors  Grin
Actually each wires on PCI-e power connectors can stand up to 10 A. So total is 30 X 12 V = 360W  Smiley

not to question your wisdom Zich Grin but doesn`t that deppend on how many amps your psu can give?
i`ll explain the situation , i bought this psu from a college from work for €15 it a recom pe-m500 500 watt (new in a box never used) , atm it is only powering 1 hex16a2 and 3 case fans.
It has 2 rails of 20 amps, it has some molex & sata connectors etc.. & 1x pci-e 6+2 connector , what i was wondering if i could connect an hex8a1 (4 chips) to this psu without being afraid than 1 day i come home and find my computer room on fire

specs of psu:  what do you think ? i think it would be a problem to connect a hex8a1 4 chip
http://s27.postimg.org/iybetn22n/psu.jpg

Should be able to run one on that, 2 would be pushing it to breaking point, unless you underclocked them.

oke 1 would work , thank you Gator-hex , i might just order 1
hero member
Activity: 490
Merit: 500
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question  

There is some mix in the picture, but i found picture with small heatsink using one PCI-e power connectors  Grin
Actually each wires on PCI-e power connectors can stand up to 10 A. So total is 30 X 12 V = 360W  Smiley

not to question your wisdom Zich Grin but doesn`t that deppend on how many amps your psu can give?
i`ll explain the situation , i bought this psu from a college from work for €15 it a recom pe-m500 500 watt (new in a box never used) , atm it is only powering 1 hex16a2 and 3 case fans.
It has 2 rails of 20 amps, it has some molex & sata connectors etc.. & 1x pci-e 6+2 connector , what i was wondering if i could connect an hex8a1 (4 chips) to this psu without being afraid than 1 day i come home and find my computer room on fire

specs of psu:  what do you think ? i think it would be a problem to connect a hex8a1 4 chip


Should be able to run one on that, 2 would be pushing it to breaking point only has 384W of 12V, unless you underclocked them or bitmine make a later batch of A1 chips that are more efficient.
newbie
Activity: 26
Merit: 0
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question 

There is some mix in the picture, but i found picture with small heatsink using one PCI-e power connectors  Grin
Actually each wires on PCI-e power connectors can stand up to 10 A. So total is 30 X 12 V = 360W  Smiley

not to question your wisdom Zich Grin but doesn`t that deppend on how many amps your psu can give?
i`ll explain the situation , i bought this psu from a college from work for €15 it a recom pe-m500 500 watt (new in a box never used) , atm it is only powering 1 hex16a2 and 3 case fans.
It has 2 rails of 20 amps, it has some molex & sata connectors etc.. & 1x pci-e 6+2 connector , what i was wondering if i could connect an hex8a1 (4 chips) to this psu without being afraid than 1 day i come home and find my computer room on fire

specs of psu:  what do you think ? i think it wouldn`t be a problem to connect a hex8a1 4 chip
http://i61.tinypic.com/dgijdk.png
legendary
Activity: 1190
Merit: 1000
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question 

There is some mix in the picture, but i found picture with small heatsink using one PCI-e power connectors  Grin
Actually each wires on PCI-e power connectors can stand up to 10 A. So total is 30 X 12 V = 360W  Smiley
hero member
Activity: 490
Merit: 500
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question  

If it's half the power range on my Hex8A1-260GH's they'll be somewhere between 182-204W @ 130GH! (unless Bitmine revised A1 the chips)
Which is no more efficient than the Hex16B GH/W but is about 3x cheaper €/GH.
But don't worry 6-Pin PCI-E can do way more than 75W, at least mine can on 18AWG rated wires.
newbie
Activity: 26
Merit: 0
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley

my thought also, if i`m not mistaken 1 pci-e can do 150+watt that should be enough, but the pictures was a little confusing, both models 260GH & 130GH show the same pictures on the website.

but thanks Zich for answering my question 
legendary
Activity: 1190
Merit: 1000
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


The latest picture show only one 6 pin PCI-e power connectors & it's already more than enough  Smiley
newbie
Activity: 26
Merit: 0
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1

Marto this 4 chip board is it gonna be powerd by 2 x pci-e or 1x pci-e ?
on the website it says "2(1) x 6 pin PCI-e power conectors @ 12 V"
 


full member
Activity: 126
Merit: 100
1. Chieftec 450W is two rails +12V1 (21 A), +12V2 (18 A), Max +12V 360W, 1x 8Pin PCI-E
http://www.idealo.co.uk/compare/2826454/chieftec-iarena-80plus-450w.html
You might struggle to run it on that. My miners were 368W and 408W each at Defaults! Get a larger single rails PSU or try underclocking it.
I forgot about the power, now that I acutally went and looked, it's a 600W model with 46A single rail. It has two PCI-e connectors, but they both share the same cable - the wires are warm, but not hot...
Quote
2-3. The options were blank I copied across the numbers from the (Default #) in the text to the left of the option. Also you need to change Handle USB detect errors as (Default: hexA) to Hex8 option.
I didn't change that, but for now it runs OK. Is this a compile option (I only compiled it with support for hexb and hex8) or a command line option?
hero member
Activity: 490
Merit: 500
What is the power to hex8?
From same psu like your hexb's?
Post clock and voltage pls

1.A Chieftec 450W PSU
2.Different - though I had no problems running my BFL Single from the 450W PSU and the HEXBs from the another PSU.
3.And this was my mistake. The technobit site says that "HEX8A1 defaults: --hexminer8-set-diff-to-one 0 --hexminer8-chip-mask 255 --hexminer8-voltage 1000 --hexminer8-options 8:260", but it didn't say that I have to specify these options, that if I do not specify them the miner does not work (for example, I do not have to specify any command line options for the hex-b to work).

1. Chieftec 450W is two rails +12V1 (21 A), +12V2 (18 A), Max +12V 360W, 1x 8Pin PCI-E
http://www.idealo.co.uk/compare/2826454/chieftec-iarena-80plus-450w.html
You might struggle to run it on that. My miners were 368W and 408W each at Defaults! Get a larger single rails PSU or try underclocking it.

2-3. The options were blank I copied across the numbers from the (Default #) in the text to the left of the option. Also you need to change Handle USB detect errors as (Default: hexA) to Hex8 option.
full member
Activity: 126
Merit: 100
What is the power to hex8?
From same psu like your hexb's?
Post clock and voltage pls

1.A Chieftec 450W PSU
2.Different - though I had no problems running my BFL Single from the 450W PSU and the HEXBs from the another PSU.
3.And this was my mistake. The technobit site says that "HEX8A1 defaults: --hexminer8-set-diff-to-one 0 --hexminer8-chip-mask 255 --hexminer8-voltage 1000 --hexminer8-options 8:260", but it didn't say that I have to specify these options, that if I do not specify them the miner does not work (for example, I do not have to specify any command line options for the hex-b to work).
hero member
Activity: 728
Merit: 500
Now in sales is 4 chip version of HEX8A
130 GH/s with regular heatsink profile and pair of 2000 rpm fans

http://technobit.eu/index.php?id_product=62&controller=product&id_lang=1
legendary
Activity: 1610
Merit: 1000
I received my HEX8, compiled cgminer with --enable-hexminerb and --enable-hexminer8. It detects my 3 HEX16B and the HEX8A1, but the hashrate of the HEX8A1 is displayed as zero (while the hexBs work OK). What could be the problem?

Also, the fan is quite loud Smiley
What is the power to hex8?
From same psu like your hexb's?
Post clock and voltage pls
full member
Activity: 126
Merit: 100
I received my HEX8, compiled cgminer with --enable-hexminerb and --enable-hexminer8. It detects my 3 HEX16B and the HEX8A1, but the hashrate of the HEX8A1 is displayed as zero (while the hexBs work OK). What could be the problem?

Also, the fan is quite loud Smiley
legendary
Activity: 1190
Merit: 1000
Ok this is 220/900 Diff:1


430GH/505W = 0.85GH/W 1.17W/GH

Heatsink and fans seem to be coping with it. They starting to become pretty good space heaters by now though. One of these per room should have your home sorted for heating. Warm cup of tea time, not too hot to drink though, just right!

Gonna set it to Diff:0 and let it settle in. If anyone has any hints or suggestions let me know. Like should I run the Hex16 and Hex8 on separate TP-Links? Would it make any difference? Diff:1 does seem to show better results.

I am also still experiment with the setting.
My method is use diff 1 to find stable hashing speed then set back to 0. After that observe for more than 12 hour. If speed reduced to many then find other setting.
My first setting 265 - 1035 only last for 12 hour then hash rate drop to 254Gh/s. To hot i guess  Grin
Now testing 260 - 1005. Already run for 11 hour & only drop to 258Gh/s. Seem more stable   Cheesy
hero member
Activity: 490
Merit: 500
Ok this is 220/900 Diff:1


430GH/505W = 0.85GH/W 1.17W/GH

Heatsink and fans seem to be coping with it. They starting to become pretty good space heaters by now though. One or two of these per room and you should be sorted for heating. Warm cup of tea time, not too hot to drink though, just right!

Gonna set it to Diff:0 and let it settle in. If anyone has any hints or suggestions let me know. Like should I run the Hex16 and Hex8 on separate TP-Links? Would it make any difference? Diff:1 does seem to show better results for the Hex8.
hero member
Activity: 490
Merit: 500
Ok it's had overnight to settle down. The numbers are worse than I thought on my quiet fan modified Hex8A1's.



Hex8A1 364GH/423W = 0.86GH/W or 1.16W/GH

I'll try upping the mV to 900 my target is 200GH each!  Wink
legendary
Activity: 1190
Merit: 1000

Did yours stop working with broken capacitor leg? I was really careful with unpacking and handling, I know caps are always the weakest electronic part.
I do have a soldering iron, if I knew what needed soldering to what I could maybe fix it, but it's unclear where these legs were attached.
I pushed the legs to touch the nearest micro resistor. It powered up with it's sister 220/880 ran for 5 mins, then crashed the power supply.


The capacitor leg broke while i clean thermal paste right after the miner arrived.
So i didn't powered it up until i fix it  Grin

Maybe marto can give some advised where to join to  Smiley

This is what i did  Cheesy Luckily until now the board run without problem & the voltage is pretty stable.



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