My sister turned off her computer and pulled the power strip plug from the wall that her computer, monitor, printer, etc. is all plugged into and when she plugged it back in the computer would not turn back on afterwards. The printer and everything else works fine. Is this an indication that just out of the blue the power supply might have died on her? There is a blinking green light on the outside of the PSU just under where you insert the power cord into the PSU on the back of the computer and no fan comes on when you plug the cord into the wall socket. Just the blinking green light.
It is a Compaq Presario, model# SR5703WM Compaq Vista Home Premium (maybe Home Basic) that is way out of warranty.
Would I be correct to say the PSU needs to be replaced?