12 card rig, 3 server psu +PICO

[Bimmber]

My mobo won`t even POST.


Somebody pass me the shotgun please!!! CPU fan spins for about 12 seconds, then stops for few, starts spinning again. It indicates its an electrical problem. What I tried - swapping power supplies, another brand new motherboard, removing one RAM stick. Tried inserting video card into PCIs slot and connecting monitor to it. Monitor says NO SIGNAL. Any ideas?!

https://i.imgur.com/uZ9VLOS.jpg

[bartjeyayo]

So if i have this right a lot of the pain in this thread couldve been avoided by using a different bb?
such as the one below:
https://www.ebay.ca/itm/DPS-1200FB-QB-6-Pin-A-Power-Supply-Breakout-Board-Adapter-For-Ethereum-Mining/362215797541?hash=item5455be7325:g:JTgAAOSw4HNaXu0v

Or am i missing anything. Sure i only have 10 pcie cables vs 12 but maybe i wouldnt use a pico then since can get an extra 2 pcie with atx

or a properly wired 6pin to CPU 8pin to plug directly into the motherboard and avoid the pico 4pin plug altogether.

Ah okay. thanks.
I was thinking something like this would work too?
https://www.ebay.ca/itm/5x-ATX-4-Pin-Male-to-8-Pin-Female-EPS-Power-Cable-Cord-Adapter-CPU-Power-Supply/281297434879?hash=item417ea238ff:g:G5YAAOSwiDFYMvY0
combined with
https://www.ebay.ca/itm/With-6Pin-Input-12V-DC-PC-ATX-Power-Supply-unit-For-mini-ITX-Pico-PSU-Out-180W/263070008251?hash=item3d4031c3bb:g:HKIAAOSwq~tZWo5r

I'm running 15 rigs with these PicoPSU's: https://www.aliexpress.com/item/TOP-SELL-DC-12V-160W-24PIN-Pico-ATX-Switch-PSU-Car-Auto-Mini-ITX-DC-TO/32832761007.html