|Since you refer to a power supply as SMPS, I'm guessing that you're from India? We call them PSU (Power Supply Unit). And based on the many questions we get from people from India regarding PSUs, there must be a lot of crappy "SMPS" being sold in your country.|
How was it determined your motherboard & PSU are bad? You haven't told us anything about any problems you are (or were) having, so how did you narrow it down to these 2 components?