Linux problems with N68-VS3 FX motherboard?

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http://www.linuxquestions.org – Odd problem. I've been running Kubuntu and Windows 7 dual-boot on an oldish Dell with no problems. Rebuilt the system with an ASRock N68-VS3 FX board (same HDD) and now Windows runs fine, but I've tried 3 Linux distros (Kubuntu, Mint & openSUSE) and they all keep crashing. I'm flummoxed. Does anyone have any ideas? (HowTos)