Ok, sent the board back. They replaced it. Still nothing. Might it be an incompatability with the case? I know it doesn't support video cards below 4X AGP, and I have an ATI Radeon 8500 8X AGP, but might there be a conflict? Oh, I have tried booting with nothing but essentials connected and still I get no POST.

I couldn't find your original thread to see what you have already tried. Can you tell us where to find it? Or at least a summary of what you've tried.

Thread "unique number" is: 29590 Everything there, I've tried. Double, triple, quadruple, etc...checked the wiring and connections and cross reffed them with the manual. Tried to boot w/o HD, CD-ROM, and floppy. Tried resetting CMOS. Checked CPU freq settings on the board. Pretty much everything I can think of. Hoping outside perspective/input will help me out. Thanks

just in case that unique number doesn't help: http://www.computing.net/hardware/wwwboard/forum/29590.html

Found the link, not a lot there. When you power on, does anything happen? These type of boot problems can be caused by the CPU, RAM or power supply.

When you upgraded to new motherboard/cpu combo what did you upgrade from? Does your powersupply have the extra 4 pin power connector that the new board requires? Give a man a fish and you feed him for a day. Teach him to fish and his wife will never forgive you.

When I power on, the fans all turn on, everything acts as if it's going to boot up, except it stalls. No beep, no POST. I get no display. My old motherboard/CPU are ASUS A7V266-E/AMD Athlon XP 1900+. The new one is Gigabyte GA7N400-PRO2/AMD Athlon XP 2600+ Barton. My old power supply was a 450 watt (I think) but the fans went out (?)...anyway, I have 350 watt power supply now. Both had the 12V 4-pin connector, which I did have hooked on. My RAM: 2 x 256MB PC2100 double sided from Crucial. The new mb has an LED that lights up if the RAM is compatible, and it does light up. The video card has an LED that indicates a vid card that's not supported, off meaning that the video card is 4X/8X AGP (supported). It is off. thanks rk