failure to start flashing codes

[don1wn]

system clicks and reboots randomly along with caps lock flashing code of 5 and then 3 led flash codes.

sometimes system will stay on for 3 to five minuits before going into reboot cycle.

please help very frustrating. 

motherboard and hard drive has already been replaced by hp repair.

unit now out of warranty.

don1wn

[A4Apollo]

Hey There! @don1wn, Welcome to HP forums!  

I understand you have issues booting into your PC and the light on caps lock is blinking 5 times repeatedly.

Don't worry I'd like to help you out.

Did you make any software or hardware changes on your PC?

As you mentioned you have issues booting into your PC and the light on caps lock is blinking 5 times repeatedly.

The error indicates embedded controller has timed out waiting for the BIOS to return from system board initialization (end of POST).

Try restoring the BIOS to default and check if it helps.

1.    Turn off the computer and wait five seconds.
2.    Press the Power button to start the computer and repeatedly press the F10 key to enter the BIOS setup menu.
3.    On the BIOS Setup screen, press F9 to select and load the BIOS Setup Default settings.
4.    Press F10 to Save and Exit.
5.    Use the arrow keys to select Yes, then press Enter when asked Exit Saving Changes?
6.    Follow the prompts to restart your computer.
 

Refer this article to know more information about recovering the BIOS.

Also, refer this article to know more information about blinking lights on your PC.

If the issue still persists after trying out the steps.

Please contact HP support for service options.

Link to contact HP.

If the solution provided worked for you, please mark accepted solution for this post.

Let me know how it goes! 
Have a wonderful day ahead! 🙂

Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
    
Click the "Kudos, Thumbs Up" on the bottom right to say "Thanks" for helping!

[don1wn]

I cannot start laptop. I have removed the battery and tried a hard reset. Still won't start. Led on start button flashes pressing button will not start computer. Led on start button constantly flashes.

[A4Apollo]

@don1wn, Thanks for your quick response and time.

I appriciate your efforts for writing back to us.

As you mentioned the issue still persists after trying out the steps.

Try checking with an alternate adapter on your laptop and check if the issue persists.

If the issue still persists after checking with an alternate adapter. It is a hardware issue with the system board or DC port on your laptop has gone faulty.

Please contact HP support for service options.

Link to contact HP.

Hope to hear from you soon!

Have a great day ahead! 🙂

Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.

Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!