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#181
Mike -
Are you looking for the Intel X48 chipset?
Are you sure the Dell chipset installed? Check your Sata or IDE controller Driver to see. If you installed it in Vista compatibility mode, try reinstalling it in normal mode.
You may be finding out why they aren't supporting WIn7 on a Core2Duo machine.
How exactly did the chipset given by the installer perform compared to Dell's so far?