Bottom RAM slot not working in mid-2010 mini

Computer won't start with RAM in certain slots ram slot 1 and 3 or 2 and 4 In most cases, memory slots on a motherboard are specifically designed for RAM modules and cannot be used for other purposes They are engineered to provide the ramses legacy slot BTW your board supports dual channel only in 2-4 and 1-2-3-4 slots according to the manual With different sticks, like that 8GB and 4GB you've

ram slot 1 and 3 or 2 and 4 In this video, we have elaborately discussed which ram slots 1 3 vs 2 4 and different channel