Does the PC turn off at all or just not the light. If it's just the power light on the tower, Check the connections between the tower to the motherboard and make sure they didn't get moved when the power supply got replaced.
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try removing the battery, plugging the computer in, and starting it again. If it starts, you likely have a battery problem. To verify that it is a battery problem, reinstall the battery and try starting again.
verify that the power supply is plugged in. also verify that you have the right power supply (perhaps you got the wrong one at friends ...)
most power supplies have a light, do you have a light? If not, you need to buy a new power supply. You can buy a universal supply at any store that carries computers. Be sure that it has a wattage rating of at least what your old supply had. Also be sure that it has the voltage that you need. You can buy a replacement on ebay or at your manufacturers web site.
To fix the problem, you need to disassemble the power supply, replace
the burnt out fuse, & also check the bridge rectifier section for
burnt out rectifying diodes (these usually get burnt out if the high
current gets the chance to leak past the fuse, which could sometimes
happen). If you find burnt out rectifying diodes, you will need to
replace them as well, as they could burn out the fuse again when you
try to use the power supply while they are still there.
If the power light on the speakers isn't on, then the power supply going to the speakers is either in a bad outlet (test the outlet with a voltage meter) or the plug isn't firmly seated. Best of luck in your new home and hope this solves your problem. Greg
this is infact your video card and it can be the power supply if the burnt cable is connected to ur video card the monitor is fine but about the burnt cable on your power supply make sure you buy electrical tape and tape that up as soon as possible because if that burnt cable touches any part of your motherboard or anything else it will instantly fry everything which means damage everything which means ... on the worst case scenario that has already happened