For the past few months I've been having an issue with my HP NX6125 laptop. When switched on, you can hear the fans start and the lights flash on but once seems about to boot it then stops and seems to get stuck in a cycle of trying to start up.
I can hear the hard drive start momentarily, the HD light also flashes briefly but then the fans and HD stop and the cycle repeats every few seconds until the machine just sits there doing nothing but with fans running.
At no point does anything appear on the screen. I can't get into the BIOS screen and I can't boot from CD either.
Sometimes it'll start up first time, sometimes after a few attempts and sometimes it just refuses altogether.
I've swapped the memory modules in and out and reseated the HD but this has not helped.