This is a repair guide for the HP ZBook Power G10. This laptop is a mobile workstation laptop mostly designed for professional computing, engineering, and intensive tasks. It may require repairs involving the display, battery, keyboard, motherboard, cooling system, RAM, or SSD.
Here's a link that will help you to find out what's wrong.
Click on Identify the Notebook light or beep code and then find the link that matches the colour pattern that the power button and caps lock button lights make on your laptop.