My CPU won't heat up when i try to turn on the mother ot the system unit 🤧

Can you guys help me about my problem my vpu won't heat up when i turn on the mother board, no beeping sounds, no light indicator for mother board but the fan is still rotating and the south bridge is heat sink is heating up but in a normal thermal. What could be the possible problem? Also my cpu doesn't have any curves or dents I'm just a beginner 🤧