i have a dell pc used to work well but unfortunately the buit in vga card went worse. I decided to leave it finding for the new vga card. once I got it and place it in the slot no signal message appeared. i tried every possibility nothing worked. ultimately i changed the processor and it worked but i can find on one thing at a time either hdd or cdrom. i set jumpers well and nothing went ok. i left it for some days as i was busy for something else. yesterday i decided to start with it the most intersting thing is it doest work at all. what i can see is only the mobo led no other reaction. now i feel tired as whenever i leave it diferent trouble happens why. can any one help?