I had to change motherboards, from an Asus with Intel 865G chipset to one with an VIA PT800 chipset.

I CANNOT boot anything?

Ubuntu install freezes after usb-storage: device scan complete
Yoper freezes on a segmentation fault
Suse 9.2 freezes on loading the Ramdisk
Knoppix loads but freezes at desktop
Vector freezes when trying to check partitions: seg fault
I already have Vector and Yoper on the harddrive. Made the mistake of trying to reinstall and I wiped the Yoper partition. Vector seems to be missing the inittab file.

I can't even boot into Windows!!!

Should I just get a new board???
Is it a hard drive issue? RAM? BIOS?

I've tried dsiabling acpi,dma.

HELP!!

If you can't boot into anything, that sounds like the new hardware could possibly be very broken. What caused you to replace the mobo?

Have you reinstalled the OSs? Replacing the motherboard is essentially the same as getting a new computer, so everything will need to be installed again.

I had to replace the motherboard on my desktop a while back. I pulled the old one, installed the new, and booted Gentoo reasonably well. (Lacked DMA on the hard drive, sound, and AGP bus support). I rebuilt my kernel with the new drivers, rebooted again, and things worked fine.

On the other hand, with Windows, you probably do need a reinstall. I'm not so sure how well it can kick in "generic" support as a backup. My guess would be that it would just try to use the specific drivers installed from your old motherboard.

These errors are occuring on install!

I replaced the MB b/c of a burning solder smell and the heatsink on the motherboard was pretty hot (not the CPU). Since it was one of those barebone systems, I replaces MB and Video card. Everything else is the same.

Try disabling ACPI before installation.

To do that, pass "acpi=off" to the command line during the bootup of the installer.

Tried all of the above.

Got a new MB with Intel chipset, problem solved. Now to finish reinstalling OS...

That's really odd. But I'm glad it worked out for you.