Computer some times displays ?

  Raffowv 15:35 15 Feb 2018

Hi all

I have a hp pavilion when i turn on the computer it some times displays a picture and most of the time it doesnt and also rarely shuts it self down the power button light turns on now and again any help would be appreciated

  Fruit Bat /\0/\ 16:06 15 Feb 2018

Laptop or desktop? when you power on do you hear fans running of se any lEDs lit or flickering?

  Raffowv 16:17 15 Feb 2018

(Desktop) i can get the computer to display but i have to unplug the power lead and hold the power button down for 30 seconds but doing that doesn't always work I've checked my ram they are fine also i have tried a different (power brick square box where the power lead goes into still the same ) sorry for my bad explaining �/p>

  Fruit Bat /\0/\ 16:43 15 Feb 2018

How clean is it inside? the 30 seconds trick usually works on static build up on the motherboard.

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