This document pertains to HP and Compaq notebook computers.
If your computer makes one or two short beeps while starting, and Windows still opens, the computer is indicating normal BIOS startup was successful. If your computer does not start, a more serious hardware issue is likely occurring. Listen for beeps and look at the LEDs (light emitting diodes) near the Num Lock and Caps Lock keys, the battery, and the AC adapter to help determine troubleshooting steps. This support document contains information that can help you learn more about the issue and how to resolve the problem.
Figure : Example of blinking LED condition (your computer may look different)