I just got an old computer from a friend, that i'd set up. At first it wouldn't start at all. After removing some parts, resetting the bios and changing to a different (and weaker) power supply it now runs (fans going, LEDs on).
The problem is that there is no signal to the monitor, no matter which graphics card I use (onboard or AGP).
Could it be that the first PSU (230W) was fried, while the second is to weak (145W)? Or is there another explanation?