Hi guys, I am totally stumped with this one so am coming for hopefully some help from someone with more expertise than me. My little kids had an old PC which was running an old 1gb processor and 2x512mb ddr2, so I decided to take my old spare parts and give it an upgrade. So, I replaced the processor with my old dual core one which is compatible with their motherboard (also applied thermal paste), and also put my old 2x1gb ddr2 memory sticks in. Upon booting up though, the monitor is giving me RGB no input signal. The PC itself "sounds and looks" fine on power on though, no beeps, all fans running including graphics card etc. I have tried the following: Re-seated the gfx card Put in a gfx card from another pc changed motherboard changed psu attached a monitor from another pc plugged monitor into on board graphics All of the above = RGB no input signal Somebody pleeeeeeeeease, is there something I am missing or something I have not tried yet?