[ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production - page 21.

foobar31

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Quote from: Gator-hex on March 07, 2014, 02:58:23 PM

Quote from: eestimees on March 07, 2014, 02:54:00 PM

What I'm missing here:

cgminer monitor keeps restartin cgminer, and not hashing a thing.. using router MR3020

Did you change "Handle USB detect errors as (Default: hexA)" to Hex8?

Well, I had a very similar issue.

cgminer restarting every ~ 3 minutes.
At first sight, it hashes at good rates (which makes my issue a bit different of yours), whatever the core_speed / voltage I choose, but with a high reject rate (20-30% reported on 2 of the testing pools I use...) => since it restarts every 3 minutes, it appears normal to me to get these stats.

Using MR3020 freshly flashed with the new 0.2.2 firmware, tried a lot of different settings (), without any success.
Also tried a powered USB hub to power both the router & the miner...

I'm convinced that using a MR3020 might be the best and simple solution for most of us but since I have a couple of servers running in the same server cabinet, I decided to try using one of them... Simply compiled cgminer 4.0.0 with the patch provided within the MR3020 firmware archive
Guess what ? It works like a charm ! So far, ~ 240/250 GHs at 240/900 and drawing 301W.

So I don't know what's wrong with the MR3020 solution but at least, I'm sure that the issue is not on the miner side

For your information, and since I asked the question here before, I tried to use an old BFL Single's stock PSU, worked fine at 240/900mV but it looks not as stable as with the Corsair 750W ATX PSU...

marto74

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actualy already made this but with some other changes in components

Gator-hex

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Quote from: iFA88 on March 07, 2014, 11:32:17 AM

The five hex8 now work nice with 52% CPU use. But when i connect one hexC or hexB then the CPU spin up to 100% and the performance decreases on all board. While this the hex8 board red light pulses.

I can not understand this, why is tplink to better than RPI?

Because I have 2x Hex8A1 + 6x Hex16B = 700GH in mode 1 and the load average is only 27% Wink

Here's the broken legs on my green-orange light one. They seem to come away from the circuit board with nothing left to solder them back to.

I've noticed in all our pictures it always seem to be the same side. Marto is this a common ground? Is there somewhere else on the board we can solder these legs to?

I bet if Marto made these boards without polyfuses they would run at 0.9W/GH instead of 1.1W/GH.
I've been thinking about snipping mine off and shorting them to increase power efficiency. What do you think?

iFA88

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I have the usb hub what u recommended, but this issue is not here, is at my friend.
I can not understand this, why is tplink to better than RPI?

Thanks for advice:)
BR:
-iFA88

Quote from: loshia on March 07, 2014, 12:49:34 PM

Quote from: Gator-hex on March 07, 2014, 12:46:46 PM

Quote from: iFA88 on March 07, 2014, 11:32:17 AM

Hy again!:)
The five hex8 now work nice with 52% CPU use. But when i connect one hexC or hexB then the CPU spin up to 100% and the performance decreases on all board. While this the hex8 board red light pulses.
Now i have two RPI. One for 2xHexB 1xHexC and for the other 5xHex7.
Any idea?
Thanks!

Quote from: loshia on March 06, 2014, 01:42:21 PM

Quote from: iFA88 on March 06, 2014, 01:41:03 PM

I have RPI A, and when i use 5 Hex8 miner, then the cgminer process goes up to 100% cpu use and therefore decreases the performance. With 4 work it 70% and all is nice.
Is there any solution to config less work to the cgminer?
Thanks!

Sure --set-dif-to-one 0
Check my spelling though it is written in chnagelog. And make sure you are using latest version -you will know it when you see pool reject rate % in screen session

Get a TP-Link TL-3020 it kicks the ass of the RPi.

Red light of hex 8 means it has no work. USB writes are taking too long for some reason. It seems some USB issue. Try with other hub or use the one I have recommended ....
And finally tplink if all fails
However if all is good at two pi's follow golden rule if it works do not touch it Wink

eestimees

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Quote from: Zich on March 08, 2014, 02:55:04 AM

Quote from: eestimees on March 08, 2014, 02:41:39 AM

jep, it's strange all of them are loose/broken.. I'd underestand one or two, but even those that are under the sink...

Yeah, re-solder it to original pad is impossible since the pad also detach from pcb.

This is what i did Cheesy

I can weld metal, do woodwork, build a house, write programs, run win/linux servers, configure cisco device but I'm not good at soldering.. considering that I have all pads detach'es.

Zich

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Quote from: eestimees on March 08, 2014, 02:41:39 AM

jep, it's strange all of them are loose/broken.. I'd underestand one or two, but even those that are under the sink...

Yeah, re-solder it to original pad is impossible since the pad also detach from pcb.

This is what i did Cheesy

eestimees

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Quote from: Zich on March 08, 2014, 02:34:17 AM

Quote from: eestimees on March 08, 2014, 02:25:59 AM

That's it, both polyfuses leg should soldered to board. Maybe they damaged on shipping.
You need to consult marto then.

jep, it's strange all of them are loose/broken.. I'd underestand one or two, but even those that are under the sink...

Zich

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Quote from: eestimees on March 08, 2014, 02:25:59 AM

That's it, both polyfuses leg should soldered to board. Maybe they damaged on shipping.
You need to consult marto then.

eestimees

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eestimees

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Quote from: Zich on March 08, 2014, 01:47:32 AM

Quote from: eestimees on March 08, 2014, 01:17:46 AM

back in business Grin

determined that chips do not get juice (power).. when PSU is off, cgminer displays and acts the same.. something must be wrong on the board..

Try setting 220 for frequency & 880mv for voltage

still same

eestimees

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I know about electronics as much as sheep about airplanes, but here are some pics:

are those poly-fuses meant to be connected like that?

comparing to that http://postimg.org/image/aphi1ykg5/full/, I have one leg up in the air for all those fuse-pairs... Shocked

Zich

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Quote from: eestimees on March 08, 2014, 01:17:46 AM

back in business Grin

determined that chips do not get juice (power).. when PSU is off, cgminer displays and acts the same.. something must be wrong on the board..

Try setting 220 for frequency & 880mv for voltage

eestimees

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back in business Grin

determined that chips do not get juice (power).. when PSU is off, cgminer displays and acts the same.. something must be wrong on the board..

Gator-hex

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Quote from: eestimees on March 07, 2014, 04:28:12 PM

Quote from: Gator-hex on March 07, 2014, 04:26:36 PM

Quote from: eestimees on March 07, 2014, 04:11:02 PM

How long you had it? Are they still shipping them out with thermo resistors on? I thought that was only the pre-production batch?

one day

today got time to start play w it..

Those ugly yellow/orange things are poly-fuses, check if any of them have come away from the board. The board I have with orange light has two detached. This seems to make the remaining attached ones hotter, which causes them to increase resistance, which probably explains why this board uses 40W more power than my green-green light one. But eventually they are designed to shut off the power if they get hot enough and they might not come back to usable for many hours. This could happen if you over-clocked it too far, or have it working in a hot room, so you might find it mysteriously starts working again in the morning if any of these apply. I've heard people say they stick a dead/overheated miner in the fridge and it comes back alive. Now I understand why! Roll Eyes

http://en.wikipedia.org/wiki/Resettable_fuse

Zich

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Quote from: eestimees on March 07, 2014, 04:40:29 PM

Quote from: Gator-hex on March 07, 2014, 04:33:37 PM

Did you try putting something on the 5v line of your PSU? It worked for mine that had green-orange light (I nicknamed it Bad Boy because it was a problem child! Cheesy

) https://bitcointalksearch.org/topic/m.5178369

no not yet, in 12v line multimeter showed 12.11V will try that 5V fan trick tomorrow, thanks for idea

Wow, forum is so hot while i am asleep Shocked

Any way last try, how about use powered usb hub to connect HEX8 & TL-MR3020 as 2GOOD suggest Grin

Or maybe you want to try version 0.2.0 Roll Eyes

You can find the file here https://bitcointalksearch.org/topic/how-to-upgrade-tplink-tl-mr3020-firmware-to-technobit-openwrt-476326

2GOOD

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First bits: 12good

Quote from: eestimees on March 07, 2014, 03:54:45 PM

root@HEX8A:~# lsusb
Bus 001 Device 002: ID 04d8:000a Microchip Technology, Inc. CDC RS-232 Emulation Demo
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

Code:

cgminer version 4.0.0 - Started: [2014-03-07 22:54:18]
------------------------------------------------------------------------------------------
(5s):0.000 (avg):0.000h/s | A:0 R:0 HW:0 WU:0.0/m
ST: 1 SS: 0 NB: 1 LW: 91 GF: 0 RF: 0
Connected to eu-stratum.btcguild.com diff 2 with stratum as user xxx_hex8a
Block: cf246aa1... Diff:3.82G Started: [22:54:18] Best share: 0
------------------------------------------------------------------------------------------
[U]SB device management [P]ool management [S]ettings [D]isplay options [Q]uit
000: HEX8 0: 260 1000/ 800mV | 0.000/ 0.000h/s | A:0 R:0/0.00% HW:0/0.00% WU:0.0/m
------------------------------------------------------------------------------------------
[2014-03-07 22:54:12] Started cgminer 4.0.0
[2014-03-07 22:54:13] Probing for an alive pool
[2014-03-07 22:54:17] Pool 0 difficulty changed to 2
[2014-03-07 22:54:18] Network diff set to 3.82G
[2014-03-07 22:54:23] API running in IP access mode on port 4028 (13)

Can you try:
1. Disconnect all wires from the board
2. Connect Power PCI-e from the PSU
3. power on the PSU
4. connect the USB from the router

If that doesn't work try putting a dummy usb hub in between, you can also power the router from that usb hub since the board provides 5V

eestimees

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Quote from: Gator-hex on March 07, 2014, 04:33:37 PM

Did you try putting something on the 5v line of your PSU? It worked for mine that had green-orange light (I nicknamed it Bad Boy because it was a problem child! Cheesy

) https://bitcointalksearch.org/topic/m.5178369

no not yet, in 12v line multimeter showed 12.11V will try that 5V fan trick tomorrow, thanks for idea

loshia

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Quote from: Gator-hex on March 07, 2014, 04:33:37 PM

Quote from: loshia on March 07, 2014, 04:30:44 PM

Quote from: eestimees on March 07, 2014, 04:28:12 PM

Quote from: Gator-hex on March 07, 2014, 04:26:36 PM

How long you had it? Are they still shipping them out with thermo resistors on? I thought that was only the pre-production batch?

one day

today got time to start play w it..

Ok if it isn't working with diff-to-one 1 something else is going on...sorry that is all I can think off....
In general lights are ok USB also thre must be some power issue no power reaching asics for some reason
If you have the skils you ca check the fuses ....

Did you try putting something on the 5v line of your PSU?

No only mr 3020
Just to make sure 12v is ok you can measure in on any psu connector using multimeter

eestimees

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changed the LAN location also, same thing.. so it is not connectivity issue..

also out of ideas... I'll go to bed now, wife already fell in sleep on other room, not wanting to come to the bedroom where I payed with that noisy miner

will continue on the morning..

thanks to all of you for helping!

Gator-hex

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Quote from: loshia on March 07, 2014, 04:30:44 PM

Quote from: eestimees on March 07, 2014, 04:28:12 PM

Quote from: Gator-hex on March 07, 2014, 04:26:36 PM

How long you had it? Are they still shipping them out with thermo resistors on? I thought that was only the pre-production batch?

one day

today got time to start play w it..

Ok if it isn't working with diff-to-one 1 something else is going on...sorry that is all I can think off....
In general lights are ok USB also thre must be some power issue no power reaching asics for some reason
If you have the skils you ca check the fuses ....

Did you try putting something on the 5v line of your PSU? It worked for mine that had green-orange light (I nicknamed it Bad Boy because it was a problem child! Cheesy

) https://bitcointalksearch.org/topic/m.5178369

Topic: [ANN] Technobit HEX8A1 -240 GHs Coincraft A1 board- Finished production - page 21. (Read 72425 times)