SLI or Cross

[Cox]

1 x PCI Express x16 slot (Note 4), running at x16 (PCIEX16_1)
1 x PCI Express x16 slot, running at x4 (PCIEX4_1)

Can this be crossfire'd or SLI? or does the speed have to be the same?

[RickyTick]

What kind of motherboard is it?

[Cox]

This may have been it:
http://www.newegg.com/Product/Product.aspx?Item=N82E16813157139
or
http://www.newegg.com/Product/Product.aspx?Item=N82E16813128373

(my laptop backlight just went out so I cant find what I saved atm)