hp 620 Won't inizialize (screen turns black and shuts down)

[greengoo]

hello everyone, i have this problem with an old hp 620. basically it just starts with a black screen and a small "flash" (like when the screen is black and the images start to come), then no more. it shuts down and re-starts alone, again and again.

I think it can be a problem of the AC adapter, cause when you plug in it makes a small sparkle and the led doesn't work perfectly (when you start plugging it turns white, but when it's perfectly plugged the led is just off).

I tried already to start it just with the battery but is the same. I'll post a video later.

[IT_WinSec]

Hello @greengoo 

Welcome.

Please, post your video.

It doesn't sound an AC adapter issue to me because it restarts and at leasts starts. Sounds like either operating system problem or some hardware issue. Please, post the video.

[greengoo]

here we are, that's the problem. if you can pay attention you can also hear the pc that shuts down.
thank you for your help, cause i really don't know what the problem can be.

[IT_WinSec · Accepted solution]

Hi @greengoo 

Thank you for the video - very helpful indeed.

Unfortunately, it is not something I/we can fix remotely.

This is not an AC adapter issue because it does power on + you tried without it and just the battery in. It also is not a battery problem.

It may be a motherboard or CPU problem but this can only be 100% checked in a service center. You may check this out >> https://support.hp.com/us-en/document/c01732674

Try to get the battery out and only try to start it with a charger on, to see if any difference (I doubt but you can try).

If nothing helps, you may try to bring or ship the PC to an authorized HP service center where the techs will be able to test it further and potentially repair it. Here is how to contact local HP support in your language if you are not sure where such a center is located - use the phone options >> https://www8.hp.com/it/it/contact-hp/phone-assist.html

This notebook model is a bit older, sometimes repairs may not be possible or more expensive than buying a new PC.

[greengoo]

Thank you for the reply, yeah unfortunately is the same with or without the battery. I'll try to change the motherboard maybe, or to open it and see if can be a ram problem 

[IT_WinSec]

You are most welcome.

Changing the motherboard is usually expensive. It is usually cheaper to buy a new PC, or it is as expensive as buying a new computer.