My hp pavilion a1130n power light flashes

[mark1957]

When I plug in my HP a1130n, the fan starts up for about 2 seconds and stops,
light on PS is steady green, but front power light flashes on and off.

 

[ahumphers91]

Probably the PSU is bad. you should buy a Power supply tester or if you have another psu that you can try and that will help rule out if it's the psu or not.