My parents power supply blew out on them last week, and i decided to replace it for them. I like to think of myself as pretty computer savvy... but i have no idea what i did wrong, and i'm hoping you guys can help me. My dad built his own PC 2 years ago, and here are the specs: ABIT BE6 440 BX UDMA Motherboard (specs ) Intel Pentium III 550MHz (Slot chip) PC100 160 Mb SDRAM 3DFX VOODOO 3 2000 16mb AGP Deer 300W power supply - model DR-A300ATX Input 115/230V, 7A/4A (current), 60/50 Hz (Freq) The power supply that I got for them is a: PowerUP Switching power supply, model LC-A350ATX Input 115/230V, 8/4A (current), 60/50Hz (Freq) The power turns on just fine, and the computer will boot, and get past the "Windows 98" screen. When it gets to the part where the desktop should appear, the screen goes black, and the HDD light on the case goes solid (not flashing anymore), and stays on. The power button on the case is now useless, even when you hold it down for awhile. To turn it off, you have to flip the switch on the PSU, or physically unplug the computer. The differences I notice between the PSUs are: - the 350W one has 3 plugs to go to the motherboard, the 300W only has one plug. - the current differences you can see above - the 350W one is indicated as being a "switching" PSU, and as far as i can tell, the 300W is not. Any suggestions?? or ideas for help? Thanks so much!