"bb/dd/f: Error allocating Upper Memory Block for PCI Device —
where bb is the bus number,dd is the device number, and f is the function number. All numbers are in hexadecimal —
The computer encountered a problem while trying to configure an expansion card or integrated LegacySelect device.
If the device number points to an expansion card, the card can be removed. If the device number points to an integrated device, disable the device in system setup."
First, do you get the bb/dd/f: figures with the error message?
Did you attempt a bios update, add hardware or change any configuration in cmos/bios setup prior to getting the error?