computer wont power up

[Acefsj]

Turned off the computer last night went to power up this morning and nothing

[Carbon Dudeoxide]

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[Acefsj]

I have a compaq presario sr 1334nx i followed the trouble shooting steps from the web site and have narrowed it down to the power supply or mobo basically i get the error message which is the green flashing light on the back of the power supply  when i hook the atx connector cable from the power supply to the mobo so how do i know if it is the power supply or the mobo

[drmsucks]

I have a compaq presario sr 1334nx i followed the trouble shooting steps from the web site and have narrowed it down to the power supply or mobo basically i get the error message which is the green flashing light on the back of the power supply  when i hook the atx connector cable from the power supply to the mobo so how do i know if it is the power supply or the mobo

Follow this: http://h10025.www1.hp.com/ewfrf/wc/document?docname=bph06788&lc=en&cc=us&dlc=en&product=453538&rule=13441&lang=en#N585

Best of luck!