Hi guys! Thanks for the thread, I enjoy reading it every day 
I've just bought 2x Delta's 2400W with 2x PICO adapters so I can connect the PSU's to my MB's, but both MB's won't start when I press the power on switch. It just spins for 2-3 sec the CPU fan and that's all. I see the PICO has a 4 pin connector for CPU and motherboard has a 8 pin connector... but on parallel miner site says that should work. Both MB are Biostar TB250-BTC Pro v6.0, so I'm thinking I've miss something.
PICO adapters: http://www.parallelminer.com/product/160watt-24pin-atx-power-module-included-sata-molex-cpu-power-connectors-bypass-your-atx-power-supply-entirely/#close
MB: https://www.amazon.com/Biostar-Motherboard-TB250-BTC-PRO-Supports/dp/B0736PV196
Any advice is appreciated! Thanks.
I've just bought 2x Delta's 2400W with 2x PICO adapters so I can connect the PSU's to my MB's, but both MB's won't start when I press the power on switch. It just spins for 2-3 sec the CPU fan and that's all. I see the PICO has a 4 pin connector for CPU and motherboard has a 8 pin connector... but on parallel miner site says that should work. Both MB are Biostar TB250-BTC Pro v6.0, so I'm thinking I've miss something.
PICO adapters: http://www.parallelminer.com/product/160watt-24pin-atx-power-module-included-sata-molex-cpu-power-connectors-bypass-your-atx-power-supply-entirely/#close
MB: https://www.amazon.com/Biostar-Motherboard-TB250-BTC-PRO-Supports/dp/B0736PV196
Any advice is appreciated! Thanks.
Are you powering one Delta per rig?
I have the same board and 1 single delta can power up 12 x RX470 (modded and undervolted, slightly OCed).
I suspect not enough power to the motherboard.
During the first boot - get 4-5 cards working first and ensure 4G is enabled on mobo BIOS.
After successful boot up with 4-5 cards, then get the remaining cards's risers inserted.
Yes, one Delta per rig, I wanted to build 2 rigs of 8 Vega64, but it seems I'm stuck. For the moment I have on both rigs 1 x Vega, on one rig it's in the 16x slot and in another is on riser. Still no luck, both are not powering up.
How did you connect the Delta from 12 x Rx470 rig with the Biostar MB? Also with the 160W PICO adapter?
From Pico, the 4pin PCIE goes to CPU and the other cable that powers the mobo via Pico goes to the breakout board.
...
Thanks for the pictures citronick:)
It's the same in my case... but for some reasons it's not working. On the breakout board does it says 12,6 on each of them when you turn the delta's switch on?
12.6 on the LED is normal -- thats the voltage apparently -- dont worry about that.
Can you re-seat your RAMs - and try again?
Ensure that you have enough amps on your power rails too - get 1 rig to work first -- if both rigs are on same circuit.
Re-seated the RAM, the same issue... The rigs are not on the same circuit.
Power rails -> you mean the cable who goes into the socket from the wall? It's a 10 amps cable IS-14.
I've just noticed there is a LED on the back of Delta's that is blinking green:
It's ok?
That's what mine do all the time. I assume it's a good thing!