HP Pavilion will not Boot at all

[FawazzleEX]

I will begin this with problems that preceded the main issue in case they are relevant. Problems began with my fan making a very loud whirring noise, which I just began to ignore because it didn't seem to affect laptop performance. Eventually, my laptop ran into a problem where closing the lid caused it to immediately power off, regardless of the power settings in the control panel. I bypassed it by simply putting my laptop to sleep first and then closing the lid, which would then not cause it to lose power. 

Now I have reached a problem which I have not been able to bypass. It began with me using my laptop at night, and I fell asleep while using it on my bed. I woke up the next day and it had died, so I closed the lid and set it aside. Later, I picked up the laptop and opened it, and attempted to turn it on, and instead of making the power indicator blink, the laptop turned on for a split second, then audibly powered off. I plugged it into the charger, and it then got into a loop where it would power on, and then after a second or two it would turn off and then turn back on in a loop. I unplugged it and removed the battery, and I then took it apart and re-set the hard drive, the ram, and various other cables, though afterwards when I plugged it in, it would power on, the fan would run for a full second, and then then fan would stop, but the laptop would remain silent and powered, and the screen would remain blank. I'm unsure where to go from here

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[praveen196]

@FawazzleEX Welcome to HP Community!

I understand that the HP Pavilion will not Boot at all.

Please contact the external display and check for the display.

Please perform the below steps and check.

Hard Reset:

1) Shutdown the computer.  

2) Unplug all the Adapter and peripherals connected.  

3) Remove the Battery. ( not for Built-in Battery computer ) 

4) Press and hold down the power button for 15 to 20 seconds.  

5) Plug-in the Adapter and put the Battery back into the computer if it's a (removable battery)

6) Try to turn on the computer and check, If the issue persists continue next step

Set BIOS default and restart:

1. Restart your notebook.
2. During startup, press F10 repeatedly until the BIOS menu is displayed.
3. Once the BIOS menu is displayed, press F9 to restore factory defaults.
4. Select Yes to confirm.
5. Press F10 to save changes and exit.
6. Select Yes to confirm.
7. The computer restarts using the default settings.

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