Blank Screen During Computer Power Up

Observations

You receive a blank screen when you power up your computer. This can happen as soon as you press the power-on button or after the P.O.S.T (Power On Self Test) completes.

Possible Causes

The followings are the two common causes to this problem:

1. Faulty or failed hardware component
   
   
2. Master Boot Record is corrupted
   
   
3. Corrupted BIOS
   

Resolution

1. Faulty or failed hardware component
   
   The blank screen occurs as soon as you power up your computer. There is also a possibility that your hard disk has failed or unrecognised by the computer. See how to recover from faulty hardware.
   
   
2. Master Boot Record corruption
   
   The blank screen occurs after the P.O.S.T (Power On Self Test) completes. See how to recover from corrupted master boot record.
   
   
3. Corrupted BIOS
   
   This can happen when you make incorrect modifications to your BIOS. See how to recover from corrupted BIOS.