I installed a used mother board on my computer and found that it did not work, when I put my old mother board back in it will not work. All it does is power on, the two cd-rom drives come on, the hard disks turn alittle, the monitor will not come on and the power light on the computer just blinks. What is the problem here and how can I fix it? Please help.....John

Hi jcannon

Seeing as you posted the problem in the XP forum I'm assuming you are/were running XP.
Did you re-install XP once you had installed this new mobo?

I may be out of line here but how about trying to turn on the computer with nothing but cpu ram and video card(or integrated video). You should get a post screen or something of that nature. I find it best to go with the minimalist approach, start from there and work my way up.

duz it beep at all if it duz what's it sound like? if the speaker connected

No beeps, yes the speakers are connected. only sounds are the hard drives whirling on

the internal speaker?

Even when I put in the used motherboard the moiniter would not come on. So I couldn't reinstall XP