I'm upgrading a computer and I'm having difficulties with loading. I am replacing just the mother board, processor chip, and the ram chip. I am re-using the hard drives, cd/dvd drives, and everything else. I've upgraded from: an AMD chip to a P4 3.0e w/ HT an unknown AMD mobo to a DFI PS85-BL ver B1 mobo I will be using 512 mb ddr 400 pc3200 kingston ram I already called DFI and they said that I need to unistall the system drivers. Of course, I tried uninstalling all device drivers and then shut down and rebuilt computer. When I booted, the computer asked for safe mode or boot normally. No matter what I select, it automatically reboots. Any ideas, instructions, or definite fixes?