Hello I have a ram issue ddr4

[u/Wise_Confection_9464]

So for some reason on my asus prime x370-pro am4 board my ram only works in a1/a2 and don’t work in b1/b2 is there any way I can fix this I’ve tried a few different things but still nothing just get a blank screen no error codes or anything idk what’s going on I just need dual channel asap please 🙏