My system will not boot BIOS

ALECR1231

Honorable
Jan 3, 2014
1
0
10,510
My system will not boot BIOS theres no beep and nothing comes up on the screen. I thought I may have a dead motherboard so I replaced it and still nothing change. I tried booting with a different power supply still no change. I tested each stick of memory no change, I checked the hard drive and it spools up, and the video card is on and working. I dont even get a warning beep if I boot with no memory or video card. Any ideas?