Is it my motherboard or my psu?

walkngboss

Honorable
Apr 10, 2013
2
0
10,510
After a few days of my monitor not waking-up, my tower finally refused to turn on. I fear it is my motherboard because the green led on the psu is still illuminated. No fans are running, only the light on the psu. Could the psu still be faulty if the led is lit?

Hp pavilion a6720f tower, amd 64 bit processer