Why did the POST fail?

The power on self-test (POST) process performs a number of hardware tests when the computer powers up. Which of the following faulty components would cause the POST to fail?

A) Faulty RAM

B) Boot file corruption

C) Virus infestation

D) Video driver mismatch

E) Your operating system is all shpilkis in its genechtagazoink

The answer: A) Faulty RAM

The memory in a computer is given a quick diagnostic during POST, and any problems reading the memory will halt the POST process and prevent the operating system from starting.

Want to know more? Watch “Troubleshooting Motherboards.”

What’s the best way to troubleshoot a PC motherboard? In this module, we’ll show you how to troubleshoot motherboard problems such as heat, BIOS incompatibilities and failing hardware.