For unknown cause the power supply had short or something and u can smell smoke .
When i opened it u can see the burn ,its model ATX-300GU which has P4ATX 12VX1 connector .
I have an old power supply from an old PC but it doesn't have the P4ATX 12VX1 connector .
would that make any different if i replace it , because when i did the power runs but all lights are steady and the monitor is not turn on !
Could that connector be the issue or it's not important connector ?
Second , could that short have burn the HDD too? " the PC was off when the smoke and the smell from the power supply happend ".
i just don't want to buy new one if the one that i have could work .
Thanks.