Problems with Pavilion Gaming

[AriaOne174]

I have purchased an HP Gaming Pavilion 15-cx0012nl series for about a year and a half and for some time i'm having some problems: it all started with an interruption in the functioning of the video card that a couple of times a day crashed without apparent reason and the problem solved only with the consequent forced reboot of the PC to allow the video card to work properly again, after doing all the updating of the video card without changes I decided to completely format my pavilion and here the biggest problems started because despite having downloaded the installer directly from the Windows site the latter did not mention starting, after several attempts I managed to get to the end of the installation but when I restarted the computer the installation procedure had to be repeated entirely, after about ten attempts I decided to resume later , after a couple of hours while i am going to reuse the pavilion  unfortunately the screen remains black and the power LED (white) flashes at slow interruptions and also the computer emits a sound in a loop as if it were turning on but it fails. I need a hand because I have done everything possible to resolve the situation on my own but unfortunately it seems I have only enlarged the problem. I wait an answer before doing everything, hope you can help in some way.

[Riddle_Decipher]

@AriaOne174 Don't worry, we've got you covered,

Though, Before we begin:

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

The sound emitted by the device is also an effective way of telling us what's happening to the device, so we can help revive it, use the above article for the same and let me know if you've got any other questions.

P.S: Welcome to HP Community 😉

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