HP 700-527C Power Failure

[RickatCL]

I have power to the power supply as evidenced by the LED directly below the power cord but I have no indication of power anywhere else.  LEDs, fans, etc. are not powered up.  The computer shut down when unattended .  Power switch has no effect.  I replaced the power supply with no result.  Not sure where to go from here.  Any ideas?  Thanks

[Prométhée]

hi

If you have already replaced the power supply, it could be the motherboard, some component
It will be difficult to identify without having enough to test everything
I advise you to go to a professional
You can, try, leaving only the main
remove the graphics card, if the computer can work without
a memory module, if there are two
check all the connectors, look closely on the motherboard, if not a burned, swollen place...

https://support.hp.com/us-en/product/hp-envy-700-500-desktop-pc-series/7477702/model/7609929/documen...

[RickatCL]

As I suspected.  I will try to disconnect all attached devices and see if I get anywhere.  I am curious if you think the processor could be part of the problem.  Powering up the computer produced lights/fans immediately and it would seem before the processor could enter the equation.  Your thoughts?

[Prométhée]

sorry i don' t understand

first :

"below the power cord but I have no indication of power anywhere else. LEDs, fans, etc. are not powered up. The computer shut down when unattended "

and

" Powering up the computer produced lights/fans immediately and it would seem before the processor could enter the equation"