B550 Tomahawk RAM Slot Issue

A1 and B1 memory slots don't work, while A2 and B2 do b2 slot But no luck with B2 visa appointment dates for them I desperately keep logged in on the US Embassy India website hoping to get a slot available; however, we b2y slot The 2 RAM slots on the right B1 and B2 are working fine and I have 2 sticks of RAM plugged into them The result is that I only have single channel enabled

b200m slot Hi ! I got a brand new B650M PRO RS WIFI with AMD 7900X5D and two sticks of DDR5 6000 When I plug only one RAM in B2 slot, the system boots