Slot 1: half length 1 lane PCI Express or 1 ADD 2-R

[lmlprado]

What is "Slot 1: half length 1 lane PCI Express or 1 ADD 2-R"?

 

[TheDraac]

I believe it means you can use in that slot, "Slot 1" ....

a half length x1 PCI Express card (x1 = 1 lane) or
an ADD 2-R card (ADD 2 = (advanced digital display, second generation)

see here about ADD2
http://en.wikipedia.org/wiki/Serial_Digital_Videut