My laptop won't boot anymore

[Geoffrey]

Hello,

Since 2 days my laptop (HP nx9420) won't boot anymore. Everytime I power on my notebook, the lights are flashing and I can hear the noise of the fan, but after 3 seconds, even before the HP boot screen appears on my screen, it just turns off again.

I removed all possible hardware already: both the memory modules, the SSD, the battery and even the small BIOS battery.

When I remove the BIOS battery my laptop goes into a power on-off cyclus. It just turns on, off, on, off, etc. but nothing else happens. No beeps and nothing appears on the screen (in fact, the laptop turns off just at the moment the HP logo would appear).

Yesterday I have had a chat with a technical person from HP (on the HP website chat) and he thought it could be a cpu overheat. So today I have removed the cpu also, and then the laptop remains powered on (but nothing else happens of course with no cpu on the main board).
I have put some new thermal pasta between the cpu and the cool plate, but that doesn't change anything.

What could be wrong? What could I do to resolve this issue?

Could it be a CPU defect?

Thanks for any advice!!!

Kind regards,

Geoffrey Beulque

 

[lostsoul62]

Gateway

I had something like that with my Gateway computer. I don't like labtop because if they break you need to send it to the manufacture. There is nothing you can't do with a desktop but now a days we all need labtops so send it in to be fixed. If you send it in and it is under warrenty great, if not send it in anyway and when it comes time for the bill and it's not worth it just buy another one but make sure you get a 3 year warrenty because then you will need another new one.