the system does not boot and give no beeps, please take out your AGP vga card , power on , will it give you 1 long and 2 or 3 short beeps followed ? if so , please try to clean your VGA card connector and install it back to motherboard , or you can try to use another VGA card test again.if nothing changes ,i suggest you take your motherboard and other parts all out off case ,then put them onto a