Laptop D7 Caps/Num lock 1 Blink.

[NolandC]

I Have an older D7 Laptop that will not boot. On Boot the fans speed up for several seconds then stops, the screen remains black, and the Caps/Num lock are blinking (once per 3 seconds). Looking up the blink codes for "Computers released before 2015" I found that 1 blink indicates, CPU not functional.  After replacing the CPU, I'm still getting the same blink code.  Is there a chance the motherboard socket is not good? Would it then not give a blink code for the bored itself?

If anyone has any suggestions it would be greatly appreciated.

[Echo_Lake]

@NolandC

Thank you for posting on HP Support Community.

This sounds like hardware related issue with the computer as it's not powering on. 

I would request you to reach out to our Support and our Support Engineers should be able to sort this out. HP Support can be reached by clicking on the following link: www.hp.com/contacthp/

Please feel free to contact us here anytime you need any further assistance. Please click “Accept as Solution” if you feel my post solved your issue, it will help others find the solution.