Bitcoin Forum
September 08, 2026, 11:42:21 PM *
News: Latest Bitcoin Core release: 31.1 [Torrent]
 
   Home   Help Search Login Register More  
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 »
  Print  
Author Topic: [ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production  (Read 73184 times)
marto74 (OP)
Hero Member
*****
Offline

Activity: 728
Merit: 500



View Profile WWW
February 06, 2014, 02:13:31 AM
 #241

You are a profit my friend.
Will continue in the morning.
As much as I love the price of the 35x5 profile
We are getting 70 mm tall one tomorrow for the bottom heatsink

http://technobit.eu
tips : 12DNdacCtUZ99qcP74FwchaCPzeDL9Voff
Zich
Legendary
*
Offline

Activity: 1190
Merit: 1000


View Profile WWW
February 06, 2014, 02:13:59 AM
 #242

So they are not the same person for sure Smiley
The first prototype with one direction of both heatsinks do not have enough surface for the top.
So we had to switch, sorry Gator
Here is some more squeezed GH/s

photo hosting sites


This result blown me away  Shocked
Very impressive marto  Grin
loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 04:39:53 AM
 #243

I am not guy's Wink
1. 2good English is a way better from mine Wink
2. Same applies to his manners. Grin
I have to work on mines for sure....but when I see something that I can not stand dis drives me crazy. You know what I mean Wink  

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Zich
Legendary
*
Offline

Activity: 1190
Merit: 1000


View Profile WWW
February 06, 2014, 05:01:08 AM
 #244

I am not guy's Wink
1. 2good English is a way better from mine Wink
2. Same applies to his manners. Grin
I have to work on mines for sure....but when I see something that I can not stand dis drives me crazy. You know what I mean Wink  

 Grin  Grin  Grin Yeah, Gator recognizes the differences on picture quality.

How about start with cleaning the thermal paste around the SMD component Roll Eyes
RoadStress
Legendary
*
Offline

Activity: 1932
Merit: 1007


View Profile
February 06, 2014, 05:53:35 AM
 #245

Pretty quiet about the power consumption...

loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 06:22:11 AM
Last edit: February 06, 2014, 06:32:44 AM by loshia
 #246

Pretty quiet about the power consumption...
Yes in fact it is. So to give you a clue as far as i know two miners with extreme OC do crash 850 W PSU rated about 73 A on 12 V
It turns out that there are peaks with 35Amps+ per board in order to crash PSU or PSU is just crappy.
I will have my PSU today 55Amps on 12V for a single miner and give it a shot i guess it will not crash with just one miner
As i predicted some time ago they eat power for sure. I will try to find power meter and give yo exact numbers But if you want 250GH+ make sure you can provide - peak power 40Amps for a board. Carefully chosen PSU 650W-700W should be fine. The bottom line will be 600W but i am not risking just to save a couple of bugs
i am talking about 12V at the wall add between 10-20 % on top EU/US (220V/110V) PSU efficiency and so on
Have in mind that marto's chips are samples from zefir as far as i know and there is a rumor that later they will re page the chips with thick wires inside which will improve efficiency


Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 06:33:28 AM
 #247

I am not guy's Wink
1. 2good English is a way better from mine Wink
2. Same applies to his manners. Grin
I have to work on mines for sure....but when I see something that I can not stand dis drives me crazy. You know what I mean Wink  

 Grin  Grin  Grin Yeah, Gator recognizes the differences on picture quality.

How about start with cleaning the thermal paste around the SMD component Roll Eyes
I do not care about paste. What i care is cgminer to work Wink
Apart of the jokes i have asked about it and it is non conductive one. I am not HW expert but as long it is no conductive clearing it will make the board look pretty and nothing more

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Zich
Legendary
*
Offline

Activity: 1190
Merit: 1000


View Profile WWW
February 06, 2014, 06:44:10 AM
 #248

I am not guy's Wink
1. 2good English is a way better from mine Wink
2. Same applies to his manners. Grin
I have to work on mines for sure....but when I see something that I can not stand dis drives me crazy. You know what I mean Wink  

 Grin  Grin  Grin Yeah, Gator recognizes the differences on picture quality.

How about start with cleaning the thermal paste around the SMD component Roll Eyes
I do not care about paste. What i care is cgminer to work Wink
Apart of the jokes i have asked about it and it is non conductive one. I am not HW expert but as long it is no conductive clearing it will make the board look pretty and nothing more

LOL  Cheesy
I can't wait to had some bite on cgminer 3.12.0
Pentium100
Full Member
***
Offline

Activity: 126
Merit: 100


View Profile
February 06, 2014, 07:14:50 AM
 #249

Please use high speed fans on these devices. I have put my miners in the basement so the noise does not bother me, but I will need them to run cool and fast in the summer (I do not know how hot the basement is going to get).

Also, I'd rather get my miner as soon as possible than wait for the fans or finger guards or whatever (I can buy those items in my local electronics store).

1GStzEi48CnQN6DgR1s3uAzB8ucuwdcvig
Zich
Legendary
*
Offline

Activity: 1190
Merit: 1000


View Profile WWW
February 06, 2014, 07:28:40 AM
 #250

Please use high speed fans on these devices. I have put my miners in the basement so the noise does not bother me, but I will need them to run cool and fast in the summer (I do not know how hot the basement is going to get).

Also, I'd rather get my miner as soon as possible than wait for the fans or finger guards or whatever (I can buy those items in my local electronics store).

marto already confirm that the miner will come with super 4500 rpm SUNON FAN  Grin
dozerz
Legendary
*
Offline

Activity: 2310
Merit: 1089



View Profile
February 06, 2014, 08:32:13 AM
 #251

when will more pcs be available?

▄▄████████████████████▄▄
▄███████▀▀██████▀▀███████▄
████████████████████████
████████▄▄██████▄▄██████

████████████████████████
██▄▄█████████████▄▄██████
██▀▀██████████████████▄▄██
██████▀▀██████████████▀▀██
██████████████████████████
██████▀▀██████▀▀████████
████████████████████████
▀███████▄▄██████▄▄███████▀
▀▀████████████████████▀▀
 
 DΞX.fo 
▄▄██████
█████████
██████████
█████████
██████████
█████████
▀▀██████

▄███████
▄██████████
████████████
█████████████
█████████████
|
▄▄█
▄████▀
▄███▀
▄██▀▄██
█████▀▀
███████
████████
▀██▄████
▄████▄▄
▄█████▀███
▄█████▀████
█████▀███████
▀██▀█████████
|  BTC     XMR  
  DAI     LTC  
   Fees  0.8%    
loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 08:52:54 AM
 #252

when will more pcs be available?
Next week when boards start to ship if guys took them and post them here Cheesy

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 09:14:17 AM
 #253

Some more speed updates as promised Grin

I got it 250GH stable!!! Some things to note:

cgminer clock is set to 250. To find out actual ASIC clock you have to multiply by 4x250 = 1000. In theory I have 8 chips , 32 cores each 1000 clock which equals to 8*32*1000=256000 or 256 GH. You will ask where are my 6 GH. So bad news I got 5 dead cores/engines which does not bother me much. That are the chips received from the factory and I can not do much about it.
./cgminer-api stats | grep engines
   [Chip1 Engines] => 32
   [Chip2 Engines] => 29
   [Chip3 Engines] => 32
   [Chip4 Engines] => 32
   [Chip5 Engines] => 31
   [Chip6 Engines] => 32
   [Chip7 Engines] => 31
   [Chip8 Engines] => 32
  
So I should be getting in theory 251 GH so basically I am there!!

More good news – the max clock rate should be 275*4 = 1100. I am not feeling like I will push it to the limits but I can tell you that all of you shall be getting around 260 GH. Have in mind cooling is very important. I am lucky because it is winter now and my room temp is around 10C. I know that up to 20-22 C is ok.
More Updates to come tplink and cgminer options




Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Gator-hex
Hero Member
*****
Offline

Activity: 490
Merit: 500


View Profile
February 06, 2014, 12:59:40 PM
Last edit: February 06, 2014, 11:47:51 PM by Gator-hex
 #254

Pretty quiet about the power consumption...
Yes in fact it is. So to give you a clue as far as i know two miners with extreme OC do crash 850 W PSU rated about 73 A on 12 V
It turns out that there are peaks with 35Amps+ per board in order to crash PSU or PSU is just crappy.
I will have my PSU today 55Amps on 12V for a single miner and give it a shot i guess it will not crash with just one miner
As i predicted some time ago they eat power for sure. I will try to find power meter and give yo exact numbers But if you want 250GH+ make sure you can provide - peak power 40Amps for a board. Carefully chosen PSU 650W-700W should be fine. The bottom line will be 600W but i am not risking just to save a couple of bugs
i am talking about 12V at the wall add between 10-20 % on top EU/US (220V/110V) PSU efficiency and so on
Have in mind that marto's chips are samples from zefir as far as i know and there is a rumor that later they will re page the chips with thick wires inside which will improve efficiency

Okay Ioshia's gave us some clues on power here, about 35-40A for 240-260GH, okay so that works out as...

240GH @ 35A x 12V = 420W
250GH @ 40A x 12V = 480W

Assuming that's right and it's 5A for every 10GH going forward from this point...

280GH @ 55A x 12V = 660W!

When I get my hands on one I'll stick a power meter over it and post more accurate numbers.

Buuuut.... it sounds far away from 1GH/1W and so it doesn't look like I'll be selling my 6x Bitfury Hex16B's (270GH/415W) just yet!

loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 01:14:01 PM
 #255

As for power Ioshia's rough numbers are about 36-40A for 240-260GH

36A x 12V = 432W
40A x 12V = 480W

Soooo.... it don't look like I'll be selling my 6x Bitfury Hex16B's = 270GH/415W just yet!
Do not even think about it. There is nothing better in terms of power that i have touched Wink

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Gator-hex
Hero Member
*****
Offline

Activity: 490
Merit: 500


View Profile
February 06, 2014, 01:51:15 PM
 #256

The first prototype with one direction of both heatsinks do not have enough surface for the top.
So we had to switch, sorry Gator

Another reason for aligning the heatsinks in the same direction, not just that I like it that way, data centers who will want to run them in 4U rack cases would also need it that way too. They blow air in one side of the case and out the other side.

loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 01:55:27 PM
 #257

The first prototype with one direction of both heatsinks do not have enough surface for the top.
So we had to switch, sorry Gator

Another reason for aligning the heatsinks in the same direction, not just that I like it that way, data centers who will want to run them in 4U rack cases would also need it that way too. They blow air in one side of the case and out the other side.
True, But this works only in case. In open air as boards are it is useless. In the case you can force air to flow.
For the data centers i am sure that they will approach marto and he will do as requested Wink

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
iFA88
Full Member
***
Offline

Activity: 237
Merit: 100



View Profile WWW
February 06, 2014, 02:05:11 PM
 #258

A few question for Loshia and Marto:
#1 Its possible to ship it out on 10. feb?
#2 Can you say me a configuration for cgminer? Is there something like this: --hexminer8-options x,x,x ?

Thanks!

loshia
Legendary
*
Offline

Activity: 1610
Merit: 1000


View Profile
February 06, 2014, 02:39:14 PM
Last edit: February 06, 2014, 03:15:29 PM by loshia
 #259

A few question for Loshia and Marto:
#1 Its possible to ship it out on 10. feb?
#2 Can you say me a configuration for cgminer? Is there something like this: --hexminer8-options x,x,x ?

Thanks!
First question is for marto
about second one:

--hexminer8-set-diff-to-one 1 --hexminer8-chip-mask 255 --hexminer8-voltage 955 --hexminer8-options 8:240

One by one


--hexminer8-set-diff-to-one  1/0
the diff when set to 1 like mine - am testing it now brings a lot pressure between UB-HOST and PIC/ASIC communication

Coin crafts can filter their response based on difficulty configured. When you set to one you got all nonces match diff 1 which has to be filtered and not send to the pool amusing you mine at diff greater than one. The only real advantage setting it to one is the cgminer 5 secs stats not moving up/down like crazy and average stats are settling down more quickly.


Assume that you mine at diff 128.
Cgminer sets it individually for each work passed to asic so it stays in sync with your pool always. Even if it is 1!

When you set it to zero - ASIC send to the pic only nonces matching the diff 128 and back to host so you have about 128 times less data transfer, and cgminer shorts the time for submitting the nonce not checking against pool diff Wink if it is a HW and all nasty stuff inside. the only disadvantage is that each nonce is counted not as one like before but as work difficulty itself which causes the stats variation. I suggest to use  --hexminer8-set-diff-to-one 0 and configure your worker to mine at some constant higher difficulty. for instance when btcguild changes difficulty some old work may become stale oldddiff even though it is valid. In general if you happen to be in between two pools difficulties and your pool changing it up and down frequently you can have higher pool reject ratio - not good

--hexminer8-chip-mask 255 - this was for development you can enable/disable chips based on binary mask bin 11111111 - 255 dec all chips enabled. Obviously zero is not a good choice here Grin
--hexminer8-voltage 955 the core voltage in milivolts. Do not go above one volt 1000 Smiley or do it on your risk
--hexminer8-options 8:240

8 is chip count - used for some internal usb timing calculations , 240 is the frequency. The actual chip frequency is multiplied by four so 240 means 880 actually. the maximum value as far as know is 275. But try to stay below 260 in general
And finally use --quiet when you have seen enough of course Smiley

Please help the Led Boy aka Bicknellski to make us a nice Christmas led tree and pay WASP membership fee here:
https://bitcointalk.org/index.php?topic=643999.msg7191563#msg7191563
And remember Bicknellski is not collecting money from community;D
Gator-hex
Hero Member
*****
Offline

Activity: 490
Merit: 500


View Profile
February 06, 2014, 04:41:50 PM
Last edit: February 07, 2014, 02:27:47 PM by Gator-hex
 #260

The first prototype with one direction of both heatsinks do not have enough surface for the top.
So we had to switch, sorry Gator

Another reason for aligning the heatsinks in the same direction, not just that I like it that way, data centers who will want to run them in 4U rack cases would also need it that way too. They blow air in one side of the case and out the other side.
True, But this works only in case. In open air as boards are it is useless. In the case you can force air to flow.
For the data centers i am sure that they will approach marto and he will do as requested Wink

Look you cannot stack them like this...



...because you will have two fans back to back sucking the life out of each other!

So you need to stack them on their side like this...



...but with the "bottom" heatsink pointing the wrong way, half of the air is going into the desk, the other half will be blowing into the miner above.

So I still think both heastinks need to run along the length of the board then you can stack them along their edge and cable tie the stack together.

If you have a problem with too much static pressure creating an air curtain over the bottom heatsink, taller heatsinks, or 2x half speed fans on the top, or even a sheet of plastic/metal/wood sticking out of both ends, should solve it. Stacking them on their side also helps solve this problem too as the air curtain isn't over another miner.

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 »
  Print  
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!