Was workin ok but no signal imput now - Asrock K7VT2 Motherboard

My Mother board is not switching ON.SMPS is not working when connected to mother board.When I press ON button LED is on but on leaving button,it is off.Mother board green LED is continously ON.No beeps.Pl give me solution. HP mother board.

MK

One bad lead can cause a computer to continue on a cycle or to shutdown or fail to detect your hard drive

Test all leads that attach to your hard drive including electrical extensions,IDE,SATA

the leads from your ((motherboard to your hard drive)) make sure they have a secure connection and are not faulty or just replace them there probably old and faulty
make sure all leads that are attached to your drives dvd\cd 3 1/2 inch floppy have secure connections and are not faulty even the electic extensions or just replace them they are probably faulty a computer needs its connections to have an end so any faulty leads will end up with a computer error hope this helps