• If has minimal components needed to boot the computer (motherboard, processor, memory, video card, software startup, ...).
• Check if the jumper settings are correct for the type of processor, speed, voltage, etc ... Use your motherboard manual to assist in this operation.
• If changes actually the BIOS setup, go to the setup of the machine and restore to their original values.
· Check the status of the motherboard and see if there is no crack, pins are bent or other problem.
Fine-tune if the power supply has enough power to power all peripherals.