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I'm having trouble trying to replace an Intel Pentium G630 (2.7 GHz) CPU with an Intel Core i5-3570. The rest of my system is as follows:

  • Windows 7 64-bit
  • Motherboard: MSI B75MA-45P
  • BIOS 1.10 updated to 1.50 via LiveUpdate 5 (from the motherboard's install disk).  

The old (Pentium G630) CPU works as it should, but the new (Core i5) CPU:

  • causes Windows to show the logo, but right before it should show the desktop, the computer restarts.
  • Safe mode checks files/drivers, but right before it should show the desktop, the computer restarts.
  • Installation shows the logo, then computer restarts

Any idea why this happens and what a possible solution may be?

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The problem may be with CPU fan not connected properly. Check for both the processor fan and the chassis fans are working.

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