computer shuts off as soon as it starts to boot

[dawghouse]

computer shuts off as soon as it starts to boot,  cpu fan starts,, ps fan starts, green light above  pwr cord is  lit, 

[Bill_To]

Hi @dawghouse 

Sorry to be verbose.

It would be good if you provide a product number or a specific model number to check components and the age of your PC. Stuff wears as it ages.

Any component connected to the MB or a peripheral connected to the PC could cause this problem. The power supply could be at fault even though you have a green LED.

Generally, you should eliminate unnecessary peripherals (even try only a monitor) and reduce the PC to a minimum config, one component at a time, to isolate the bad component. For example, you remove a component, start the PC.

You have found the bad component if the PC starts up.

Eventually you will be looking at the PSU, RAM, discrete graphics card, MB, or CPU. You may have to swap in each of these components, one at a time, at this point to find the bad part.

You could try each stick of factory RAM or try a different, compatible, stick of RAM, one at a time, in each memory slot to eliminate a bad stick of RAM.

It may be advisable to have a local PC Tech do this when you get down to the: PSU, MB, or CPU unless you have spare parts.

Regards