Caps lock bliking 1 time continue

[Abhijeet6]

For a few days, just turning on the power of my laptop is blinking the 1 time continue of the only

caps lock light and no display. But sometimes after 1-2 days it does the right thing to start but then on shutting down, the same problem comes up. I changed the Ram and still saw the problem. Pls help. 

[Riddle_Decipher]

@Abhijeet6 Note that specific patterns of long and short blinks along with long and short beeps (where applicable) identify errors during the startup process.
Newer computers have two-part blink sequences with different color lights to indicate specific errors and you may click here and troubleshoot on your own, or check below:

In your case, since that's an old product, 1 blink represents = CPU not functional,

And If you have an HP authorized service center near by, you should be able to take it to them and have it checked,

Here is a link to HP Service Centers, by Country/Region: Click here

P.S: Welcome to HP Community 😉

If you wish to thank me for my efforts, you could click on "Accept as solution" on my post as the solution should help others too.