Antminer controller repurposing

GoogleGroups
1

Hi, I have a bunch of these BB Black boards extracted from Bitmain Antminers S4/S5/S7

Is there any way that I can reuse them?

thx in advance

bbb (1).jpeg

bbb (2).jpeg

2

Maybe... They are pretty neutered.. No usb power, dc power jack. Power
over header... Looks like a nand flash, we never used that, so the
boot pins are probably different..

What's the used resale market on them?

A BeagleBone Green is around $44 new..

https://www.seeedstudio.com/Seeed-Studio-BeagleBoner-Green.html

So if you can sell them for more then $44, i'd do that..

If you want to play around, start with this image:

https://rcn-ee.net/rootfs/bb.org/testing/2020-04-13/buster-console/BBB-blank-debian-10.3-console-armhf-2020-04-13-1gb.img.xz

It'll at-least get you into u-boot, so you can read the board eeprom..
(in theory)..

But yeah, no support, i don't have any of these..

Regards,

3

as long as they respond to ssh is good since i can try what to do afterwards

thanks in advance

4

soldered a DC power header to turn it on without the secondary controller board that comes with the miner

used the image you recommended without success… it just refuses to boot

flashed the original firmware using hdd raw copy tool and it boots normally

original firmware https://bitmain.zendesk.com/hc/en-us/article_attachments/201659685/S4_Jan_29_Image.imgc

perhaps you can stripe open said image to compare?

5

I also have a board like this. Going to solder a usb micro-b connector on it to power it. Which is a type that fits well?

See e.g. https://nl.farnell.com/w/c/connectors/usb-connectors-adapters/usb-connectors?st=micro%20usb%20b%20connector%20smd&gs=true

Do I also need to add capacitor C34 to the board? I see in photographs versions of 10 V and 6.3 V.