If you are that comfortable to build your own PC, then you should be equally comfortable to take the thing back apart.
You already have an i7. There hasn't been any 'huge' improvements in the CPU market for 5+ years now since the chip came out. I would save your money and rather invest the time to take it back apart and inspect the pins first.
Make sure you have extra thermal paste to put the heat sink back on.
If you jostled the cooler it may have simply come loose from the CPU itself. The chips get very hot, very fast, and it may be over-temping before the machine can even POST depending on your configuration.
You already have an i7. There hasn't been any 'huge' improvements in the CPU market for 5+ years now since the chip came out. I would save your money and rather invest the time to take it back apart and inspect the pins first.
Make sure you have extra thermal paste to put the heat sink back on.
If you jostled the cooler it may have simply come loose from the CPU itself. The chips get very hot, very fast, and it may be over-temping before the machine can even POST depending on your configuration.