Motherboard and CMOS Issue

[leachim]

I have an HP 598 p0100na

 

Pressing ON button does nothing

 

Removing Power and CMOS for 5 mins and then replacing, makes the fan come on without pressing ON button - then fan goes off after 10 secs

 

Nothing on screen

 

Thanks

[Olliedawg]

any beeps/error lights?

Do you have a spare stick of memory to try? Or try in another slot?

Are you able to jump the pc on with a screwdriver on the PWR pins?

 

*edit to correct typo

Edited January 1, 2024 by Olliedawg

[Fazza]

Reseat the RAM (if more than 1 stick try just having one stick in at a time and maybe try different slots), reset the CPU. If you have a GPU and your CPU has an APU then remove the GPU and plug your monitor in to the motherboard to rule out a graphics card issue. Try removing anything that isnt required for a PC to boot, i.e. HDD/SSD/NVME/Optical Drive/Expansion cards and then try to power on.