3478$ here

They've offered a refund in July, expected to be done in septembre
Then, they've offered me to transform my order into a cloud mining contract (I would have preferred it instead of nothing...).
I've finally never got access to that contract.

In one of their last communication to me, they asked to wait for January... but for what... I don't know...

Also very concerned by this question, an answer would be much appreciated... Looks like we are getting more and more closed to a 2 months delay on that one.

@Bitmine : at first and as a professional involved in the Bitcoin ecosystem, I thought that ordering professional-class (basically rackable...) devices would have help in getting them in due date..
Well, I was (so so) wrong and my initial willing to be a futur reseller or partner has just vanished...

So my question to marto is still opened


Sure.
Over the past 16 hours, the board hashed at an average of 221.5 Ghs configured with 240@900mV
The power consumption is very stable at 283 W which means 1.28 W/GHs (with a very low 0.12 % hardware error ratio)

I'll probably make some tests with different settings but I'm not at home for the next week and I prefer to be not far from a board while testing new parameters Let me know if you'd like me to focus on specific clock/power couples.

Again and as far as I'm concerned, these boards are just awesome !
Delivered right in time, with a fair & right price, I would have bought more if I had not thousands of $$$ in BlackArrow's bank account, waiting for an again delayed delivery...

Not sure I have this components onboard (if you're talking about the same yellow things we saw a couple of posts before).
I don't know a lot about electronic but how does that works exactly ?

Here is a picture of my board :

@marto

I was wondering if your A1 based board implements a sort of emergency shutdown ?
The use case might be when the board is going too hot, because of an internal issue or because of a fan running slowly for instance.

If not, that would be a good feature (together with regulated fan speed) to implement in the next generation

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...

Confirmed, as far as I'm concerned their tracking page was updated yesterday night and I receive the package today...

Regarding the PSU needed to power the 260 GHs board, would you guys think that the one provided with a BFL Single 60 GHs would be enough ?
It's currently running and it draws ~ 319 W, so I'm guessing that it should be enough... right ?

Nota1 : I already have a dedicated PSU (CORSAIR 750W) which will be used for this Technobit board but I haven't set up a fake power button yet, and I'd really like to test my new miner...

Nota2 : miner received today, 3 days after it was sent by Technobit !
Great job ! Looking forwared to buy the next generation ^^

For those who want to track their package and already have their tracking number (mentionning DPD/Speedy services, not sure if every package will be shipped this way) the website to use with this number is : http://www.speedy.bg

Then, you'll be given a DPD tracking number to use in this website : https://www.dpd.com/de_en
You usually get more/detailed information on the DPD tracking website.

I didn't find it easily at first, so just sharing...

Thanks for the hints, I'll give it a try and let you know.

PS : when trying to reach the repo you were mentioning I first had no result because of a typo.
=> For those looking for what loshia is referring, it's here : https://github.com/BitSyncom/cgminer-openwrt-packages

Hi,

I've just flashed a MR3020 with the new 0.2.0 firmware, waiting for my HEX8A1 coming in the next couple of days (hopefully... )
And I was wondering if there's a solution to easily recompile cgminer with --enable-bflsc since I still have an old BFL Single running.

These device does not have a lot of free space and I'm not sure that cloning the whole cgminer repo.

@marto: Could you add an how-to or at least explain how you achieve the compilation on the router ?

Thanks

Thanks

Hi Zich,

Can I ask which PSU/model you're using ?

Thanks

Just wondering : is there any limitation (such as a certain type of chips) when running this firmware ?

Just my 2 cents if people are still using this device and trying to mod it.

I tried to replace the default fans by others (which were not good enough in terms of pressure...) but it makes me discover something after re-mounting the default ones...
For me it appears that the flow direction has a high importance, you'll get better result if it goes from right to left when looking at the SC from the rear (where the power/usb connectors are).

With the default fans and an open box : 64°C +/- 1°C
In the wrong direction : 70°C +/- 2°C

Cheers