System does not start though fans are working - Troubleshoot

In some cases, you may not be able to access the drivers and the video also may not work. If the system does not start up, but the system fans work fine, it is mostly either a motherboard or CPU problem.

1 - Remove the CPU and restart it on the motherboard

2 - Check the seating of the CPU on the motherboard and ensure that is locked down

3 - Ensure that the motherboard power supply is properly connected

4 - Check all the ribbon cables to see that they are connected to the appropriate drives and are oriented properly

5 - Reset the BIOS settings to default

6 - Try the sage booting procedure with power up defaults , by referring to the motherboard manual

7 - If the system does not start up , the memory , CPU or motherboard are faulty

8 - Remove any additional memory and try starting with the minimum memory. Then swap the memory and try starting the same. if the system starts with either of the memories , then the other memory is faulty.

9 - Check all jumpers and connections on the motherboard

10 - Check the motherboard expansion slots for metal fragments

11 - Replace the CPU on the motherboard . If the system works the CPU is faulty

12 - If the system does not work with the new CPU ,  try placing the CPU on another computer motherboard. If it works then your motherboard is faulty.