Welcome to TSF:
Please post the make and model and other specs for your replacement PSU
did you examine (closely) the inside of the power connectors that attach to the mobo for burnt pins ?????
did you connect the 4pin connector to the mobo that supplies 12V to the cpu ?????
do you have another video card you can try ??????
when you try to boot , does the cpu fan spin ~~~ any other activity ????
post back your progress / ask more questions if needed
regards
joe
Please post the make and model and other specs for your replacement PSU
did you examine (closely) the inside of the power connectors that attach to the mobo for burnt pins ?????
did you connect the 4pin connector to the mobo that supplies 12V to the cpu ?????
do you have another video card you can try ??????
when you try to boot , does the cpu fan spin ~~~ any other activity ????
post back your progress / ask more questions if needed
regards
joe