I bought a new motherboard and processor bundle. I have installed it in this computer exactly the same as the motherboard on this one but nothing happens when I switch on. There is power there and the fans start going but nothing appears on screen. Could it be faulty? Obviously put the old one back in to talk to you!! Thanks.
Make sure the speaker in the case is connected and it should beep to tell you whats wrong, heres the codes click here. The most likely problem is the graphics card they are very very tight on a new motherboard and you'd be better to remove it and try to put it back again.
Clear the CMOS by moving the jumpers on your Mobo for about 30 seconds then put them back into their original postion - restart computer and enter BIOS to re-enter time date etc. Save and Exit (usually by pressing F10) Computer should then boot