That's what he believed when buying the blades.
And for such a case, we are developping a standalone controller.

Tout depend de ce que tu appelles rapporter. Si c'est des millions, bien entendu, on oublie.

oui, je fais encore tourner des puces avalon 2, et oui, elles rapportent encore, même si c'est très marginal
J'ai aussi 40-50 cartes graphiques type HD5870 qui tournent encore presque en permanence.
Elles vont probablement être complétées/remplacées par des 750Ti
Je mine tant que le coût électrique et le retour financier s'équilibrent à peu près.
Comme expliqué dans l'un des posts sur le minage, j'ai un abonnement EDF Tempo qui est "super rentable" 80% de l'année.

Bleu creux   0,044
Bleu plein   0,0576
Blanc creux   0,0719
Blanc plein   0,0907
Rouge creux   0,1525
Rouge plein   0,4401

Je conçois que quand on croit au système Bitcoin, il est certainement plus rentable d'acheter du bitcoin, mais c'est carrément moins fun de mon point de vue.

J'aime bien bricoler le matériel, et les connaissances que j'ai pu acquérir en le faisant compensent pour moi largement l'aspect ROI de certains matériels.
C'est aussi dans cette optique que je me penche depuis un moment sur la création d'un mineur fait maison.
Au delà de l'aspect technique sympa, ca me permettrait de réduire légèrement les coûts d'achat.

Corrected boards are in France since Friday.
Hopefully, I'll have them in hand by the end of next week (regular post and customs can take a while) and they will work as expected.

Yeah, sometimes, fans are hungry.
I've got one scythe Ultrakaze that bit hard on one of my fingers too when modding one Gridseed Blade.

As for the DPS 2000 BB and the DPS 1200 FBA, I have them back in stock, so I'll prepare a package for you soon.
I just wanted to add the antminer control board once the first prototype is functionnal. Hopefully, I'll receive the new PCB next week.

I think I'll have some more things to ask you to print for me later.

Mise à jour avec les nouveaux modèles de cartes et les cables.

All boards back in stock except for the DL580 G3 XL.

It's probably a 470uF 25v electrolytic capacitor.
This one should work, but check the size, 10mmx10mm
http://www2.mouser.com/ProductDetail/Panasonic/EEE-FK1E471P/?qs=%2fha2pyFadug8Pl57h5%252bWR9OoWjHTEjaEuIm2uYdVIDjrSzeT33x3bQ%3d%3d
You can even replace it with a cheaper radial one instead of SMD (easier to solder too).
http://www2.mouser.com/ProductDetail/Nichicon/UPW1E471MPD/?qs=sGAEpiMZZMtZ1n0r9vR22RH2kZvTh%252b0aMBvmwdG7WLg%3d

PCBs are back in stock, assembly has started.
Deliveries will start tomorrow for orders paid today on DPS 2000 BB and Common Slot boards.

The BTC payment address is 1J4bberWs6f6XVQ53gn3BNc8qHAicmm7wu

You got your offer.

It can be a 2 or 3$ option for the next batches, I guess.
There are cheap 12>3.3v buck converters, I'll check how cheap I can have a 12>5v converter with 1A supply.

Edit: it can be an option, and price would be 2.5$ for 1A capable port.

I'll mod my files for future batches.

Hi, sorry for the late answer, I only check this thread once in a while.

I don't know why it's still not recognized.

Did you try to extract the flash from the not recognized blade and make a crc comparison with the one I uploaded?

Also, what revision are your blades?
Mine were the first batch sold.
I received them the day after they were out.
That shouldn't change anything, but check it just in case.
You can use the same method to extract the firmware from one of your working blades and flash it to the defective one in case they would be different revisions.

Last thing, do you have the exact same STM32 chip?
It needs to be a STM32F103 RCT6

Worst case, I'll send you one of my chips with the firmware already flashed in it to test.

ask for 40 sample connectors, and 320 crimp pins, they will probably send them.

Hi, I will have the DPS 2000 BB in stock tomorrow or Tuesday (PCB will be delivered by DHL tomorrow).

The DL580 G5 boards are the "Common Slot" ones, DPS-1200 FB A, XL board
You can see some pics in the first post.
The last ones were delivered on Thursday, I'm waiting for the connectors to arrive on Tuesday, so they will be back in stock on Tuesday/Wednesday.

BTC payment accepted, of course.
How many DL580 G5 boards would you need?
Drop me a private message, and I will reply with a price quote including shipping.

This is the one on the board.
http://www.mouser.fr/ProductDetail/TE-Connectivity-AMP/1735446-8/?qs=sGAEpiMZZMs%252bGHln7q6pm9XXV%2fJjz6Yw3qG%2fIRHo8LA=

You  can also get free samples from TE-connectivity
http://www.te.com/catalog/pn/en/1735446-8?RQPN=1735446-8

And here is its mate.
http://www.te.com/catalog/bin/TE.Connect?C=1&M=BYPN&BML=&LG=1&PN=1735447-8&PID=479064

this one should do it too
http://www.te.com/catalog/bin/TE.Connect?C=17259&M=PPROP&P=177735&BML=10576,17729&LG=1&PG=1&IDS=419106,423595,423596,423597,423598,423599,423600,419105,423602,423603,423604,421037,423550,423551,423552,423590,423591,423592,423593,423594&N=8

You will need the crimp pins.

http://www.te.com/catalog/bin/TE.Connect?C=1&M=BYPN&BML=&LG=1&PN=1470106-1&PID=432720

They ship the free samples with Fedex, register as "independent designer" for the company.

Very impressed too, they are really nice.

Not yet, I was quite busy with other things.
I'll try  tomorrow.
For the prototype there are some pins that I can't connect as I want to make the ugly prototype.

To make it short, I started to work on it as 3 separated usb ports on the usb hub chip, and finally switched to 3 ganged ports.
The second mistake was that I forgot to set the pins for the "always connected ports", and I connected them to the wrong input, 2 and 3 instead of 1 and 2.
Since I'm using the cp2102 to generate the voltage for tue usb hub, I can't do anything.
New boards already ordered, with slower (and cheaper) shipping.
I should get them within 10 days, worst case.

And I still need to try something on the software side with the actual cheap cp2102 USB converter tomorrow.
Maybe changing drier could help when the usb was detected but not activated.

It took me a few trials to get the cairnsmore working, so I thought that installing winusb with Zadig could help for the cp2102.
or going back to the original driver if it's already winusb.

You might consider buying osmething else, then.

https://minereu.com/product/a1-btc-miner/

I never had trouble with minereu except the rusty gridseed pods from the last batches.
It seems not everybody was as lucky as I am, but for 300$, (second hand), it might worth the try.
And it isn't a sponsored or anything link.

For some reason, they are supposed to be "final ten", but I was able to add 40 to my cart 

wasn't the Bitmain price already including shipping?

And you might want to try EMS shipping if it's still available.
Most of the time, I don't have VAT/taxes using EMS
And mining something else than BTC can also improve your ROI.

Here is my post with a quick "how to".
https://bitcointalk.org/index.php?topic=576784.msg9138488#msg9138488
I'll add pics later.