Hi guys its been years since I been on here but I am stumped. I bought a "new" motherboard a socket 478 to replace my older 478. My processor is a Celeron D 3.06 ghz Ram: 512mb video card: FX-5200 128mb? both boards are pretty old fsb 533 and 1.1 usb...yeah.. This computer are parts from my closet and really want it to work, except the board I bought because I thought that was the problem. newer board AOPEN AX45-533 older p4vxad+ When I put the computer together I got both of the boards to power on but no screen posting or anything. I took out the memory same thing Took out the video card, same thing Now I put in a dead P4 processor and that got hot but same thing(powers but no screen), that was weird because the Celeron D that works I put in was cold. Now this got me thinking, maybe these boards are so old they don't support a Celeron D and maybe I have to buy a old pentium 4. could this be the problem?