The tenth generation i3 10100f cannot be used with the b250 motherboard.
According to existing data, the CPU models on the b250 motherboard are 1151 pin, mainly the following series: Celeron 3900, Pentium G4560 series, Intel Core i3, i5, i7 series of six and seven generations of CPU, no matter what brand of b250 motherboard is only on these cpus, other models are not supported.