10-31-06, 05:49 AM
got geforce 6800gs 512mb intel pentuim 4 windows xp 450watt psu. Worked fine for few months then started getting messages saying card not receiving enough power then game would crash. Thought it would be psu as had a problem with one before so installed new 650 watt psu. Now pc wont boot at all, no post beeps, just black screen. Tried an old graphics card but same thing happens, wont boot. Can hear fans running but windows wont load. Anyone any idea where to go from hear or what problem may be?