Re: ASUS B250 Mining Expert MB

I'm having a hard time finding a shop in Europe where this motherboard is available. Have you got some links?

I was also wondering if the motherboard had to be powered by ALL 24 pin connectors or if 3 molex + 1x 24 pin is enough?

You don't need to use the 4-pin molex connectors on the motherboard when using powered risers. They are only there for the few people that may still use ribbon unpowered risers.

https://youtu.be/6e7ywLfRogQ?t=4628

So why dont we all use unpowered risers when we can get power from the pci-e slots?

Because ribbon-type risers are a ROYAL PAIN to deal with compared to USB-cable-type, and you really need powered risers ANYWAY to avoid overloading the power traces on the MB even WITH the "aux power MOLEX connectors" in use if you run a lot of cards.