Got mine yesturday, BIOS options are amazing (have had ASUS, Abit, Gigabyte, and Intel 925XE, 955X, 975X, P965, P35) compared to other motherboards I have used.

My X48 chip says:

NU82X48
SLASF
L746A792
Intel 07

Board seemed to be all new and not tampered with. The NB heatsink did have a "rainbow" stain on the bottom, but I think that is caused by the production process.