I have seen that, but it does not help if I can not see the ones I will be ordering.

The 2 11.85TH/s models look like the one on the right but are C5.

I know that, having discovered it when 4 out of the 5 S9 I bought have the C5 in them, I am looking at buying a few more S9 and am trying to avoid the C5 ones, so why I am asking if the C5 came in the S9i.

Also trying to determine if I can just buy some Xilinx control boards and put into these 4 that have C5 or if I am better off to part them out, (you answered this one it looks like), not sure if it will be worth it on the 2 11.85TH/s models though.

Was the C5 only on the S9 or was it in the S9i – 14 TH ?

I see some used for sale for only $125.00 including shipping I think that is without a PSU, but I think I might get a few and just use the PSU from these slower ones.

I bought 5 used S9 miners, it turns out that 4 of them have the C5 board in them, out of those 4 (2 are 11.85TH/s models) can I just buy replacement xilinx control boards and put into all 4?


Are hash boards all interchangeable or is each (S9, S9i, S9j, etc) take a certain type of board, I have seen them on E-bay and they sometimes list what model they came out of and sometimes do not?


I am sure I had more questions I wanted to ask but can not remember them right this second and I am getting ready to go to a Christmas party so will ask them later.

Thank You
Michael Grace

I know, look at this one.



Bitmain Antminer S9 replacement hashboard, fully functional.

https://www.ebay.com/itm/Bitmain-Antminer-S9-replacement-hashboard-fully-functional/222827790553

US $1,700.00   +  Shipping:$50.00 Standard Shipping

I am just wondering if I could run a miner off of a 12 volt DC battery bank from a solar/wind system?

All the power supplies, APW3++, APW7 and others put out an output voltage of 12.00 to 12.15 volts DC so is there any reason why I could not run straight off a 12 volt DC battery bank instead of running it through a 12 volt DC to 240 volt AC using a expensive inverter only to have the APW3++ or APW7 converting it back to 12 volts DC, using an inverter there is some loss of power (90% to 95% efficiency) and then the APW3++ or APW7, APW7 runs at 93.8% efficiency, APW3++ runs at 93.5% efficiency, so why not run straight from the batteries and bypass all the losses?