Hi guys, I'm new to the forum but could really do with some advice. I've got a Packard Bell IMEDIA 1529 desktop which won't boot up at all. When I hit the power switch the processor fan kicks in and the system makes a small clicking sounds which repeats every second or so. I've removed the memory, disconnected the harddrive and removed all expansion cards on board and still get the exact same response. This pretty much leaves me with a processor and motherboard. Any suggestions short of scrapping the system? Thanks in advance.