The more I work with computers the more problems that seem to puzzle me and the more I realise that I don't know. On this occasion I have just replaced a mobo, processor and memory on a machine. I have connected the hard drive and dvd-rom using a shared cable to the IDE socket on the board. On boot up both drives are found by the BIOS and dvd is set as first bootup drive. I loaded the windows disc to carry out a repair of windows as the machine would not boot into windows but the dvd spins up, the first boot up screen appears referring to checking system specification and then the screen goes blank and nothing else. I ran WD lifeguard diagnostics which tell me the hard drive is fine, I have tried a different DVD rom which does the same as above, a few weeks ago I had replaced the PSU so asume its not that. Have any of you wiser chaps than me any suggestions as to what may be going on here?