Turning off and on

[Raymundo2]

My hp pc keeps turning off and on with no display on the screen it like a loop I took out my hard drive and the cpu but that’s not the problem I don’t know what could be the problem 

[Garp_senchau]

@Raymundo2, Welcome to HP Support Community,

Thank you for posting your query; I’m here to help by guiding you through steps to resolve this issue

Disconnect power → Open the case.

Remove all RAM → Turn on PC (should beep or blink if no RAM).

Insert 1 RAM stick in slot 1 → Try to boot.

Remove GPU (if you have one) → Try onboard video.

Clear CMOS (remove battery or use jumper).

Try a different power supply (if available).

Also, let me know if the issue persists when connected to an external monitor—do you see any display, or is it the same behavior?

I hope this helps.

Please feel free to reply here if you have any questions or if you need further clarification on any of the steps. 

Take care and have a good day. 

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Regards,