I got it. The manual or the mainboard is a little off. I have to use slots A1 and A2, not as the manual suggests B2 downwards. Also A1 B1 as the tech guy from supermicro suggested first didn't work, it had to be A1 A2, which are next to each other. I'll report back if it doesn't work furhter
I don't remember how the slots are labeled, but pairs of modules should go in same-colored slots; i.e., two blue or two black, not one in a blue slot and one in a black.I got it. The manual or the mainboard is a little off. I have to use slots A1 and A2, not as the manual suggests B2 downwards. Also A1 B1 as the tech guy from supermicro suggested first didn't work, it had to be A1 A2, which are next to each other. I'll report back if it doesn't work furhter
4 beeps might mean processor 5 beeps is memory. Next time before you open motherboard or a post package take hd camera and film as you open your motherboard box and check immediadly is cpu pins are ok, if its not you have some proof of consept that it came already bent or even better if it was not bent and when you rma board. Some cases dealers just bend those pins really good and try to say that you bend those pins. But if you have good picture of proof that board left from you by not bended pins, then dealer has a harder time of scam you.
Edit: Oh i just bought same board as you, last weekend and its already in use my first freenas box. Had some trouble with ipmi, i had boot dos and set few stuff that ipmi chip. Also had upgrade freenas 8 to 9 as freenas 8 is not work x10.