It seems that my P4 3.06Ghz computer's old problem is coming back.
I suspected motherboard at first. But after some hard thinking, I think I still need to boost up the power supply. I'm going for at least 600watts from 425watts.
I can't believe I traded 1GB pc3200 memory for a 512MB pc2700 memory last time because I thought the memory was the problem.
Conclusion: It's either the power supply or the motherboard(motherboard does seem defective, never could get floppy controller to work). But I'm going to go with power supply first. Need more power anyway.
[@more@]