Hello, This is the first time i am doing this so please bear with me because i have the feeling and i hope that what i am missing is something quite simple. I recently purchased a barebone kit with CPU chip, motherboard, tower with power supply and hard drive. These are the components: Biostar MCP6PB M2+ Motherboard AMD Phenom X4 9650 Quad Core Processor OEM Centon 2048MB PC6400 DDR2 Hitachi OS00163 1TB Deskstar Internal Hard Drive Power Up Black ATX Mid-Tower Case I took the fan and the DVD player from my old computer which died on me. I clipped in the CPU, then added the fan over it that had a greasy feel on the part that touched the CPU chip which i heard is for good heat conducting. I also clicked in the RAM. I then used the diagram that came with my motherboard to connect all the cables. I connected both power cables (4pin and 24pin) to the motherboard. and i connected all the little single or double pin cables from the front pannel in the appropriate spots (i did this twice in case i had made a mistake). I also connected the CPU fan and the system fan (which i also added from old comp). I then connected all the remaining cables as well but i doubt they are the ones creating the problem here. I plugged in the power cable to the power unit, put on the switch in the back from 0 to 1 and i press the power button at the front but nothing comes on. no fan, no lights, nothing. Its not my wall socket because it has power and i tried two sockets. Its also not the power plug because i also tried 2 of those. I then tried connecting my old power supply which was still working to the motherboard instead and connecting the power plug in there to see if maybe the power supply provided in the case was not working but that didnt solve it either. Ive done everything i can think of with the limited knowledge i have. I also read one of your threads here and tried everything in there including changing the position of the rubber thing on the CMOS just for the heck of it. I was kinda hoping i would get this right off the bat but it seems im missing something. Can anyone think of why the computer wont start? Oh and i was not working on a carpet and i was wearing a anti-static wristband.