Hello everyone,
I understand the computer will not start, and your Cap Locks light is blinking repeatedly. The issue is hardware related, but I will do my best to assist you. The best troubleshooting for this issue is locating in this HP document: Computer Does Not Start and the LEDs Blink or the Computer Beeps
The document can help by providing information on how to reset the notebook, and how to identify the root cause of the issue. I encourage you to look at this document. If you cannot resolve the issue, I would contact HP phone support for hardware assistance. You can utilize this website to learn how to contact HP appropriately, based on your region: Contact HP Worldwide
Please let me know if you have any other questions or concerns.
Mario