text: my pc is broke, help!!? my pc comes on but nothing is displayed on monitor. i have tried 2 monitors so i dont think thats what it is. i have a new radeon 9550 that has worked very well for the lst 3 mos..i smell burning but can;t tell where it is comeing from. my hard drive has been acting up a little but nothing big. all fans spin up, hooked up to onboard video nothing chaanged , but i did notice that the hd dose not spin up and i can not open disc drives. the burning smell seems to be coming from power supply. time for a new psu (power supply unit). i would suggest at least a 450 watt unit. they are not that expensive and you can probably replace it yourself - just note what connectors go where and make sure no cables touch a cooling fan.